## 無限可積分系メーリングリスト

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mugenMLの皆様，富山大の山根宏之です。以下の研究集会の案内をします。

（講演者は必要ありません）

“Meeting of number theory, ring theory, Hopf algebra theory and related
topics”

すようご案内申し上げます。

[Place: Room-DAIKAIGISHITSU(2ndFloor, Building-Kanrito), Hongo Campus,
National Institute of Technology, Toyama College]

[Address:13 Hongo-machi, Toyama City, Toyama Prefecture, 939-8630 Japan,
TEL:+81-(0)76-493-5402, TEL:+81-(0)76-492-3859]

2月22日（金）
10：20－10：50　山根　宏之（富山大学理学部）
「Weyl groupoids and Cayley graphs」
[Hiroyuki Yamane (Graduate School of Science and Engineering for
Research (Science), University of Toyama)]
11：00－11：30　柴田　大樹（岡山理科大学理学部）
「On Hopf superalgebras and supergroups」
[Taiki Shibata (Department of Applied Mathematics, Okayama University of
Science)]
11：30－12：00　松本　拓也（名古屋大学高等研究院・多元数理科学研究科）
「A logarithmic extension of the extended W-algebra of type A_1 at
positive rational level」
[Takuya Matsumoto (Institute for Advanced Research and Department of
Mathematics, Nagoya University)]
13：30－14：00　古閑　義之（福井大学工学部）
「On Sergeev-Veselov’s super Weyl groupoids」
[Yoshiyuki Koga (Graduate School of Engineering, University of Fukui)]
14：30－15：00　清水　健一（芝浦工業大学システム理工学部）「未定」
[Kenichi Shimizu (Department of Mathematical Sciences, Shibaura
Institute of Technology)]
15：10－15：40　伊藤　健（愛知工業大学基礎教育センター）
「Lusztig's automorphisms and convex bases of PBW type for quantized
enveloping algebras」
[Ken Ito (Center for General Education, Department of Natural Science,
Aichi Institute of Technology)]
15：40－16：10　小木曽　岳義（城西大学理学部）
「Cluster algebras and knot-invariants」
[Takeyoshi Kogiso (Department of Mathematics, Josai University)]
16：20－16：50　大浦　学（金沢大学理工研究域）
「Coding theory and some finite groups」
[Manabu Oura (Graduate School of Natural Science and Technology,
Kanazawa University)]

2月23日（土）
10：00－10：20　笠谷　昌弘（富山高等専門学校一般教養科）「未定」
[Masahiro Kasatani (General Education, National Institute of Technology,
Toyama College)]
10：20－10：50　木村　巌（富山大学理学部）「未定」
[Iwao Kimura (Graduate School of Science and Engineering for Research
(Science), University of Toyama)]
11：00－12：00　Intan Muchtadi-Alamsyah（Faculty of Mathematics and
Natural Sciences, Institut Teknologi Bandung, Indonesia）
「Geometric Representation of U-Projective Resolution of Module over
Path Algebra of Type A_n and ¥tilde{A}_n」

（会場に関して） 笠谷 昌弘 mkasatani「アットマーク」nc-toyama.ac.jp
（講演に関して） 山根 宏之 hiroyuki「アットマーク」sci.u-toyama.ac.jp

よろしくお願いします。

山根宏之
http://www3.u-toyama.ac.jp/hiroyuki/

at Perimeter

faculty and student positions at Perimeter Institute の情報を転送します。

-------- Forwarded Message --------
Subject: Applications open for faculty and student positions at Perimeter
Date: Thu, 27 Dec 2018 01:30:14 +0000
From: Perimeter Institute

Available Faculty Positions and Fellowships

Last year, Perimeter Institute was voted by its employees as one of the
top Canadian workplaces for its inspiring, healthy, and family-focused
environment. If you or anyone you know is looking for a position or
student opportunity, we are currently accepting applications for a
number of openings. For position details and application deadlines, see
individual career postings below:

Fellowships

-- Postdoctoral Fellowships: Pioneering the Future of Radio Astronomy
-- Simons Emmy Noether Visiting Fellows Program

Student Opportunities

-- Perimeter Scholars International - Graduate Program
-- Undergraduate Summer School - Two weeks (fully-funded)
-- Summer Undergraduate Research Internship (paid)

Faculty Positions

-- Faculty positions in quantum information science
-- Tenure-track assistant professor and associate faculty in theoretical
high energy physics - McMaster University and Perimeter Institute
-- Visiting Researchers - Sabbatical Program

ここでは再構成できません．関心をもつ方はPerimeter Instituteのウェブサイト
https://www.perimeterinstitute.ca/
で調べてください（高崎）

ついてお知らせ致します．詳細は下記 URL をご覧下さい．

https://www.icu.ac.jp/news/images/Mathematics_J.pdf

あります（原則１年、延長の可能性あり；応募締切２０１９年２月１５日）。興味の
ある方に情報をまわして頂けますようお願い致します。

National Research University Higher School of Economics
Faculty of Mathematics / Laboratory of Representation Theory
and Mathematical Physics

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

https://iri.hse.ru/post_math2019
からコピーしたものです。必ずこの URL 及び HSE の全学部共通のポスドク公募要項
https://iri.hse.ru/faq_pd
をご参照下さい。（但し、全学のページの方は、現時点では日付が前回募集時のまま
になっていますので、お気をつけ下さい。）

------------------------------------------------------------
The Faculty of Mathematics

The Faculty of Mathematics at National Research University Higher School
of Economics (HSE) in Moscow, Russia, invites applications for
postdoctoral research positions in Pure Mathematics and Mathematical
Physics.

The job involves:

---joining one of our research groups within the department or the
associated laboratories (see below) in performing high-quality research;
---pursuing independent research in Mathematics or Mathematical Physics
in parallel with working on joint projects with faculty members and
researchers of HSE
---writing research papers for international peer-reviewed journals
---participation in organization of the events and other contribution
to the development of Mathematics Faculty and the associated laboratories
---public presentations of candidate’s own research to the researchers
---some teaching is encouraged, though not required.

The Faculty of Mathematics provides a working place and offers access to
all research facilities and services available to its faculty members,
including computational software and library resources.

Requirements:

---a PhD (or equivalent, including Russian Candidate of Science degree)
from a research university in such fields as: Mathematics, Physics,
Computer Science
---a strong background and an established research record in Mathematics
or Mathematical Physics
---ability to work in a team
---fluent English
---applicants are requested to indicate a preferred research unit among
the three international laboratories listed below, if applicable

General conditions for Post-Doctoral Research positions can be found
here. Appointments will be normally made for one year.

A CV and research statement should be submitted via online application
form and two letters of recommendation should be submitted by the
referees directly to fellowship [at] hse.ru by February 15, 2019. Please
note that direct applications to the Faculty of Mathematics or associated
laboratories may not be reviewed.

HSE is a young, dynamic, fast-growing Russian research university
providing unique research opportunities.

The Faculty of Mathematics was opened in 2008. Since then, it has become
a leading place in Russia for attracting researchers in Mathematics and
mathematical students. The Faculty has Bachelors, Masters and Ph.D.
programs in Mathematics. It collaborates with the Steklov Mathematical
Institute, the Institute for Information Transmission Problems, and the
Lebedev Physical Institute of the Russian Academy of Sciences (world
renowned research institutes). Jointly with the Independent University
of Moscow, the Faculty publishes the Moscow Mathematical Journal and
runs 'Math in Moscow', a “study abroad” program for North-American
students. Among our faculty members are distinguished researchers,
including 15 invited ICM speakers; we have the best concentration in
Russia of highly motivated students majoring in mathematics.

Affiliated with the Faculty of Mathematics are the following
international research units:

· International Laboratory of Algebraic Geometry and its Applications

· International Laboratory of Representation Theory and Mathematical
Physics (Academic Supervisor – A. Okounkov)

· International Laboratory of Mirror Symmetry and Automorphic Forms

------------------------------------------------------------
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

クロスポストご容赦ください．

------------------------------------

(Moscow))

the higher spin representations of the Sklyanin algebra. (ENGLISH)

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

The Q-operator was first introduced by Baxter in 1972 as a
tool to solve the eight vertex model and recently attracts
attention from the representation theoretical viewpoint. In
this talk, we show that Baxter's apparently quite ad hoc and
technical construction can be generalised to the model
associated to the higher spin representations of the
Sklyanin algebra. If everybody in the audience understands Japanese,
the talk  will be in Japanese.

------------------------------------

みなさま(重複して受け取られた方はご容赦お願い申し上げます)

しております。

◇日程: 2019年1月9日(水) ～ 1月11日(金)

◇場所: 金沢大学 角間キャンパス 自然科学5号館(C4) 2階 209 室

◇講演者と時間割:
1月9日(水)
14:00-16:00 三浦 真人 氏 (KIAS)
16:15-17:15 小林 健太 氏 (東大数理)
1月10日(木)
10:30-11:30 森村 勇人 氏 (東大数理)
13:30-15:30 伊藤 敦 氏 (名大多元数理)
15:45-16:45 奥田 伸樹 氏 (東大数理)
1月11日(金)
10:00-11:00 井上 大輔 氏 (東大数理)
11:15-12:45 原 和平 氏 (早大基幹理工)

◇講演タイトル等の詳細は次のホームページのリンク先からご覧ください。

【概要と目的】

にして、不定期・数回のワークショップの開催を検討しております。本ワークショップ
の特徴としては、以下の2点があります。
・比較的長時間の講演を含みます。
・入門的な解説や、魅力的な例の紹介など、専門家以外でもわかりやすいような話を

お気軽にご参加いただけますとありがたく思います。

Workshop "Rikkyo MathPhys 2019"

（会場が昨年度までとは別の建物となっていますのでご注意ください。）

タイムテーブル，講演タイトル，アブストラクトなどにつきまして，

また，Banquet を1月12日(土)に開催する予定です（会費 3000円）。

の方は，registration form から参加登録をお願いします。
（研究集会自体への参加は無料です。）

Antonio Sciarappa [KIAS]
Kentaroh Yoshida [Kyoto Univ]
Yutaka Yoshida [Kavli IPMU]
Masaki Shigemori [Nagoya Univ]
Atsuo Kuniba [Tokyo Univ]
Tomohiro Sasamoto [TITECH]
Toshio Nakatsu [Setsunan Univ]
Takeshi Ikeda [Okayama Univ of Science]

みなさま

---------------------------------

Kouichi TAKEMURA (Chuo University)

Title: ホインの微分方程式（Heun's differential equation）

Abstract:　超幾何微分方程式は３点 0,1,∞に確定特異点をもつリーマン球面上の

そして、ホインの微分方程式はリーマン球面上の４点に確定特異点をもつ線形二階

ホイン対応、q変形、多項式解、楕円関数による表示とその応用を挙げておく。

============================================================================
SEMINAR INFORMATION
============================================================================

classified into rational, trigonometric and elliptic. At the top of this
hierarchy lies the discrete elliptic Painleve equation, which has E8 symmetry
and is associated with theta functions.
In this talk, we introduce bilinear Hirota-type equations for the tau-
functions for the "lens-elliptic" generalization of the elliptic discrete
Painleve equation. This equation has E8 symmetry, and the theta function is
replaced by the "lens-theta function".
We construct explicit E7-invariant solutions of this equations using "lens-
elliptic" gamma functions.
Many of the crucial ingredients in our talk originates from the physics of
four-dimensional N=1 supersymmetric quiver gauge theories.

----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

CNRS Staff-Researcher positions　の情報を転送します。

-------- Forwarded Message --------
Subject: CNRS Researcher Positions 2019
Date: Wed, 12 Dec 2018 17:46:19 +0100

Dear Colleagues,

We are pleased to inform you that the French CNRS is calling for
applications for Staff-Researcher positions for 2019. The list of openings
for theoretical physics is the following:

Section n°02: Theoretical Physics

N°02/02 - 4 Associate scientists ("chargé de recherche").

We emphasize that two of these positions will be assigned primarily to
laboratories of the Institute of Physics outside Paris and Lyon. Among the
priority labs is the Laboratoire d’Annecy-le-Vieux de Physique Théorique
(LAPTh).
http://gestionoffres.dsi.cnrs.fr/fo/offres/detail-en.php?&offre_id=4

Section n°41: Mathematics and their interactions

N°41/05 - 1 Associate scientist ("chargé de recherche") : position assigned
in a laboratory of the Institute of Physics related to the field of
Mathematical Physics.
http://gestionoffres.dsi.cnrs.fr/fo/offres/detail-en.php?&offre_id=100

The research activities of LAPTh Annecy are centered around three main areas:
phenomenology of particle physics; astroparticles and cosmology; mathematical
physics. The laboratory is especially looking for staff researchers in the
field of mathematical physics, preferably with interests in integrable
systems, or in the new developments in supersymmetric Yang-Mills theories
and amplitudes. Good candidates working on the other LAPTh research areas of
interest are also welcome.

Interested candidates are warmly invited to contact the director of LAPTh
(luc.frappat [at] lapth.cnrs.fr).

More information on the competition format and application can be found on
the CNRS webpage:

https://www.dgdr.cnrs.fr/drhchercheurs/concoursch/default-en.htm

Best regards,
--------------------------------------
Luc Frappat
Director of Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTh)
UMR 5108 CNRS-Université Savoie Mont-Blanc
9 chemin de Bellevue
BP 110 Annecy-le-Vieux
F-74941 Annecy cedex, France
Phone +33 (0)450 09 16 86
Web   http://lapth.cnrs.fr
--------------------------------------

Applications open for The Simons Emmy Noether Fellows Program

The Simons Emmy Noether Fellows Program at Perimeter Instituteの案内を

-------- Forwarded Message --------
Subject: Applications open for The Simons Emmy Noether Fellows Program
Date: Fri, 14 Dec 2018 11:58:02 -0500
From: Luis Lehner

Dear Colleague,

Perimeter is currently accepting applications for The Simons Emmy Noether
Fellows Program at Perimeter Institute, which enables outstanding
theoretical physicists to pursue research at Perimeter while on leave
from their faculty positions at their home institutions.

The Simons Emmy Noether Fellowships are central to Perimeter’s initiatives
to support female physicists. Perimeter Institute promotes an inclusive,
welcoming culture and a family-friendly workplace.

Forwarding this email to interested faculty and groups
blogs:

Canada’s Perimeter Institute for Theoretical Physics (PI), welcomes
applications for The Simons Emmy Noether Fellows Program. This fellowship
is central to Perimeter Institute’s initiatives to support female
physicists. Perimeter Institute promotes an inclusive, welcoming culture
and a family-friendly workplace.

The Fellowship provides financial and organizational support for relocation,
which may include some or all of the following:

salary support or top-up
local expenses
accommodation
return transportation and research-related travel
reimbursement as required for child care

The Simons Emmy Noether Visiting Fellowships are held for periods of up to
one year.Physicists who are currently in faculty positions at universities
or equivalent at a research centre are especially encouraged to apply.

https://perimeterinstitute.ca/emmynoether

Deadline for applications is January 15, 2019.

Thank you in advance for sharing this information.

Sincerely,

Luis Lehner
Faculty Chair, Perimeter Institute

(30分遅れて始まります)のでご留意ください。

-----------------------------

Date: Dec 21 (Fri), 17:00–18:30, 2018
Room: Room 402 RIMS
Speaker: Hironori Oya (Shibaura Institute of Technology)
Title: Quantum Grothendieck ring isomorphisms for quantum affine
algebras of type A and B
Abstract:
In this talk, I present a ring isomorphism between $t$-deformed''
Grothendieck rings (=quantum Grothendieck rings) of finite-dimensional
module categories of quantum affine algebras of type
$mathrm{A}_{2n-1}^{(1)}$ and $\mathrm{B}_n^{(1)}$. This isomorphism
implies several new positivity properties of $(q, t)$-characters of
simple modules of type $\mathrm{B}_n^{(1)}$. Moreover, it specializes at
$t = 1$ to the isomorphism between usual Grothendieck rings obtained by
Kashiwara, Kim and Oh via generalized quantum affine Schur-Weyl dualities.
This coincidence gives an affirmative answer to Hernandez's conjecture
(2002) for type $\mathrm{B}_n^{(1)}$ : the $(q, t)$-characters of simple
modules specialize to their actual $q$-characters. Hence, in this case,
the multiplicities of simple modules in standard modules are given by the
evaluation of certain analogues of Kazhdan-Lusztig polynomials whose
coefficients are positive. If time permits, we discuss a refinement of
description of our isomorphism.

This talk is based on a joint work with David Hernandez.

Perimeter Institute's Undergraduate Theoretical Physics Summer Program
の案内を転送します。

-------- Forwarded Message --------
Subject:
Paid Summer Internship for Undergraduate Students
Date:
Fri, 07 Dec 2018 19:23:06 +0000

Dear Colleague,

Perimeter Institute's Undergraduate Theoretical Physics Summer Program
invites exceptional students to join its research community for a fully
funded two-week summer school. Ten summer students will also be part of
a paid research internship program. Students will learn research tools and
collaboration skills while immersed in the multi-disciplinary environment
of the world's largest independent theoretical physics research centre.

This program consists of two parts:
1.  Two-week Summer School (fully-funded): 20 students will be immersed
in Perimeter's dynamic research environment -- attending courses on
cutting-edge topics in physics, learning new techniques to solve
interesting problems, working on group research projects, and potentially
even publishing their work.

2.  Paid Research Internship: Of the 20 summer school students ten will
remain at Perimeter as summer research interns. They will have the rare
opportunity to develop their research skills and absorb the rich variety
of talks, conferences, and events at Perimeter Institute.

who may be interested:

• Direct all to the Undergraduate Theoretical Physics Summer Program
• Paste key info below into your sites and blogs

Applications are due by January 7, 2019.

Successful applicants for both the summer school and internship will be
selected by February 28, 2019.

Best regards,

Key Information for Posting on Websites and Blogs:

Applications are now being accepted for Perimeter Institute's Undergraduate
Theoretical Physics Summer Program. The program consists of two parts:

1. Fully-Funded Two Week Summer School (May 27 to June 7, 2019)

• Students are immersed in Perimeter's dynamic research environment --
attending courses on cutting-edge topics in physics, learning new
techniques to solve interesting problems, working on group research
projects, and potentially even publishing their work.
• All meals, accommodation and transportation provided

2. Paid Research Internship (May 1 to August 30, 2019 negotiable)
• Students will work on projects alongside Perimeter researchers.
Students will have the opportunity to develop their research skills
and absorb the rich variety of talks, conferences, and events at
Perimeter Institute.

Applicants can apply for the two-week summer school or for both the
summer school and the research internship. Summer school and internship
positions will be awarded by February 28, 2019. Selected interns will be
contacted with the research projects topics. All research interns must
complete the two-week summer school.

Mathematical Physics

みなさま

Hamburg大学ののポストドク情報を転送します。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Dear colleague,

researchers?

Thank you and best regards,
Christoph Schweigert and Ingo Runkel

---

The research group on algebra and mathematical physics at the
mathematics department of Hamburg University will have several postdoc
positions to fill. Our group is part of the Center of Mathematical
physics Hamburg (http://zmp.math.uni-hamburg.de) and involved in the
research training group "mathematics inspired by string theory and
quantum field theory". We are also part of the newly granted excellence
cluster "the quantum universe".

1. One position within the excellence cluster "the quantum universe"

This position is for three years, without teaching duties. The
successful candidate is expected to contribute to the subproject "new
observables from higher categorical structures." and has a background
which allows her / him to successfully interact with researchers in the
mathematics and in the physics department.
Application instructions and further details can be found on

https://www.uni-hamburg.de/uhh/stellenangebote/wissenschaftliches-personal/
exzellenzcluster-quantum-universe-qu/07-01-19-485-en.pdf

2. One or more postdoc departmental positions (deadline 27.12.2018):

The positions in the Mathematics Department are for two years and
include a moderate teaching load (4 hours/week). Candidates with a
sufficient proficiency in German will be given priority. Application
instructions and further details can be found on

https://www.uni-hamburg.de/uhh/stellenangebote/wissenschaftliches-personal/
fakultaet-mathematik-informatik-und-naturwissenschaften/27-12-18-446.pdf

To apply for both positions, please send two separate applications. For
ingo.runkel[at]uni-hamburg.de or christoph.schweigert[at]uni-hamburg.de.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

(3日後の)月曜日から京都大学数学教室にて開催する
"Mirror symmetry for Fano manifolds and related topics"
ですが，講演タイトル(とアブストラクト)がほぼ揃いましたので

https://www.math.kyoto-u.ac.jp/~iritani/mirrorsymmetry2018/workshop2018

Cheol-Hyun Cho:
Lecture 1. HMS for toric Fano manifolds
Lecture 2. Mirror symmetry for orbi-spheres
Lecture 3. Pairings and Mirror symmetry

Andrew Harder: TBA

Akishi Ikeda: q-stability conditions and q-quadratic differentials

Alexander Kasprzyk: TBA

Yota Shamoto: Hodge structures on tame compactified Landau-Ginzburg models

Maxim Smirnov: Quantum cohomology and derived categories of rational
homogeneous spaces

Renato Vianna: Lagrangian fibrations and open Gromov-Witten invariants

（複数のMLに同時に投稿しておりますこと、ご容赦ください。）

ようお願い申し上げます。

【所属】 東京農工大学　工学研究院数理科学部門
【職種】 講師
【専門分野】 数学分野（代数系，幾何系，解析系）
【応募期限】 平成31年1月7日（必着）

http://www.tuat.ac.jp/outline/kyousyoku/kyouin/20190107_03.html
をご参照ください。

どうぞ宜しくお願いいたします。

Trinity College Dublin & Univ. of Surrey のポストドク情報を転送します。

---------------

Dear colleague,

we would be grateful if you could find below a postdoc advert for interested
candidates - apologies for duplication.

Best wishes and many thanks,
Marius de Leeuw and Alessandro Torrielli

***************************************************************************
The School of Mathematics of Trinity College Dublin and the Department of
Mathematics of the University of Surrey invite applications for two 2+1
year postdoc positions (depending on funding). One position is planned to
be held in the group of Alessandro Torrielli at the University of Surrey
and the other in the group of Marius de Leeuw at Trinity College Dublin.
This is part of the joint EPSRC-SFI grant 'Solving Spins and Strings',
which focusses on the lower-dimensional integrable instances of the AdS/CFT
correspondence and their related spin chain models. The preferred starting
date will be September-October 2019.

Applicants are invited to express their interest by submitting the
following documents to a.torrielli[at]surrey.ac.uk

- Cover Letter
- Curriculum Vitae
- Research Statement
- Publication List

The applicant should also arrange for three reference letters to be sent to
a.torrielli[at]surrey.ac.uk. The official opening will be advertised in due
course.

(a.torrielli[at]surrey.ac.uk) or Marius de Leeuw (mdeleeuw[at]maths.tcd.ie)

平成30年12月6日

九州大学マス・フォア・インダストリ研究所長　佐伯 修

ことになりました. ご多忙のところ誠に恐縮に存じますが，貴関係者に
お知らせいただくとともに，適任者をご存じの場合は応募をお勧めくだ
さいますよう，お願い申し上げます．
敬具
==========

「統計・データ科学及び関連する数理科学分野」を専門とし,

ご自身の専門性を活かして情熱を持って貢献できる方を募集します.
(1) 学部, および, 大学院における数理・データサイエンス
教育カリキュラムの企画運営の補助.
(2) 大学院数理学府学生の研究指導補佐，および, 理学部数学科
専門科目の講義・演習指導.
(3) 九州大学数理・データサイエンス教育研究センターが行う
事業の運営補助.

https://www.imi.kyushu-u.ac.jp/recruits
を参照下さい.

Oxford大のポストドク情報を転送します。

-------- Forwarded Message --------
Subject:
Three CMT Postdoctoral Positions at Oxford
Date:
Mon, 3 Dec 2018 12:08:49 +0000
From:
Siddharth Ashok Parameswaran

Dear Colleagues,

The CMT group at Oxford expects to appoint up to 3 postdoctoral researcher
assistants to perform research on the theory of condensed matter. The senior
members of the group are Professors J T Chalker, F. H. L. Essler, P. Fendley,
D. E. Logan, S A Parameswaran and S. H. Simon. The positions are supported
from an EPSRC grant on “Coherent Many-Body Quantum States of Matter” and
are available for a fixed-term period of 2 years starting on 1 October 2019
(or mutually agreed date shortly before/after), with possible extension for
a third year.

We would appreciate it if you could forward details of this post to any
suitable candidates, who can apply online at:

We are particularly interested in candidates with expertise one or more of
the following areas:
— quantum field theory applied to quantum condensed matter systems
— topological aspects of quantum condensed matter, particularly in
interacting systems
— one dimensional interacting quantum systems including techniques of
integrability
— numerical methods, particularly tensor network and MPS techniques for
strongly correlated systems

A full job description and selection criteria are available at:
https://www.recruit.ox.ac.uk/pls/hrisliverecruit/erq_jobspec_version_4.jobspec?p_id=138097.
Further enquiries about the role may be directed to one of the grant
holders: john.chalker[at]physics.ox.ac.uk, fabian.essler[at]physics.ox.ac.uk,
paul.fendley[at]physics.ox.ac.uk, david.logan[at]chem.ox.ac.uk,
sid.parameswaran[at]physics.ox.ac.uk, steve.simon[at]physics.ox.ac.uk

The deadline for applications, including all reference letters, is noon
UK time on January 3, 2019.

***Please note that these posts are in addition to two ERC-funded posts
Owing to UK employment law and immigration policies, candidates must apply
separately for each post. Therefore, even if they have already applied to
a different position at Oxford, candidates must submit an application in
response to the present advertisement to be considered for these new posts.
the full range of available positions.***

I apologize if you receive this email multiple times.

Sincerely,
Sid Parameswaran (on behalf of the Oxford CMT group)

Image Synthesis」のご案内（第２報）

# 複数のメーリングリストで案内しております。
# 重複して受取られた方はご容赦ください。

をお願いいたします。皆さまのご参加をお待ちしております。

-----

MEIS2018: Mathematical Progress in Expressive Image Synthesis
2018年12月8日（土）午後から9日（日）昼まで

このシンポジウムは数学とCGを中心に、それらの応用に関する様々な分野の方を招いて

リング、メッシュ生成、位相的データ解析、離散微分幾何、流体シミュレーションなど

12月8日（土）
13:00-13:50 Takashi Ijiri: 3D modeling of flowers and insects by using
X-ray CT and photographs
14:00-14:50 Hongzhi Wu: High-dimensional Material Appearance Acquisition
15:10-16:00 Takaharu Yaguchi: Mathematical Challenges in Simulations
of Musical Instruments
16:10-17:00 Jonathan Dupuy: A Spherical Cap Preserving Parameterization
for Spherical Distributions
17:10-18:00 J.P. Lewis: Visual Art, the Brain, and Neural Image Synthesis

12月9日（日）
9:30-10:20 Ippei Obayashi: Theory and applications of persistent homology
10:30-11:20 Kenshi Takayama: Interactive approaches to robust and
11:30-12:20 Albert Chern: Geometric Approaches to Computational Problems

の開催に合わせ、東京にて行います。

シンポジウム・コチェア

--

Lille, 27-31 mai 2019

みなさま

http://www.kurims.kyoto-u.ac.jp/~arakawa/

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Dear colleagues,

This is a first announcement to the conference « geometrical and
automorphic aspects of W-algebras »that will be held in Lille,
27-31 May, 2019.

You can already register on the conference webpage:
GAAWA - Lille 2019

Please feel free to circulate the announcement to colleagues that
might have interest.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

ご協力をいただき，ありがとうございます．

さて，本研究所では，下記のように共同利用研究計画を公募することになりま
した．ご多忙のところ恐縮ですが，貴関係者にお知らせいただくとともに，適

し上げます．

IMIについては，ホームページ http://www.imi.kyushu-u.ac.jp/
をご参照ください．
敬具
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

トリ」の具現化を推進しているところです．その事業の一環として，本研究所
は平成30年度の共同利用研究を下記の通り公募します．多数応募いただきます
ようお願い申し上げます．なお，本研究所では毎年テーマを決め，一定数の研

からは「若手研究」の枠を設けています．詳細は以下をご覧下さい．

1. 公募する研究種目

のです．内容や規模に応じて(I), (II)の2種に分かれています．両者とも組織

いです．研究集会終了後には研究代表者にA4で2ページ程度の成果報告書を提

のです．研究テーマとして，個々の企業の知的財産に直結するような狭い問題
よりは，複数の企業や研究機関の研究者が協力して取り組めるような，ある程

として産業界からの参加者を含めることとし，共同研究実施中に講演などの一

にA4で10ページ程度の成果報告書を提出していただきます．

する教員と緊密に連絡を取りながら単独での研究ないしは共同研究を行うもの
です．研究テーマとして，短期共同研究や研究集会につながることが期待され
るような萌芽的な課題，あるいは企業等での研究開発現場で生起した，集中的
な共同研究が問題の解決やその糸口につながるような課題など，近い将来，産

した上で計画を立てて下さい．研究終了後には，A4で5ページ程度の成果報告

2. 事業経費と研究支援
(1) 研究集会(I)

を主としてこの種目で審査します．旅費(海外招聘旅費を含む)として80万円程

る作業および経費は本研究所が負担します．原則として九州大学伊都キャンパ
スの施設で開催していただきます．（やむを得ず本研究所以外の九州大学の施

「MIレクチャーノート」（カラー150ページ程度）として出版していただきま
すが，研究所と協議の上で，シュプリンガー社が出版する叢書「Mathematics
for Industry」の1巻として英文で査読付きの会議録として出版することも可

ずしも当該年度内でなくとも出版が可能です．これにかかる出版費は本研究所
が負担します．

(2) 研究集会(II)

ます．旅費(海外招聘旅費を含む)として60万円程度を上限として支援します．

ス・フォア・インダストリ研究」シリーズの1巻（モノクロ200ページ程度）と
して当該年度内に出版していただき，出版にかかる経費は本研究所が負担します．

(3) 短期共同研究

(4) 短期研究員

なお，経費支援，会場の手配，会議録などの制作・配布に関わる事務や，共同

ん），インターネット接続などの研究資源を利用することができます．

3. 公募の種別
(1) プロジェクト研究
「AI社会の高度化を支える数理の深化と情報基盤技術との連携」
プロジェクト代表者：森永聡（日本電気中央研究所），

クトでは，統計理論や，アルゴリズム等を含む，このような数理に関連する研

の計算や情報関連技術との連携に関しても議論を行う．

(2) 若手研究
このカテゴリーでは，研究代表者として平成31年4月1日時点で博士号取得後5

マや，将来の産学連携のシーズとなることを志向した数学に関するテーマを募

アイデアを討議するような萌芽的なものでもかまいません．審査にあたってこ
れまでの研究経過や実績は重視しません．採択後，本研究所が適当な産業界の

(3) 一般研究
このカテゴリーでは研究分野を特に指定せずに公募します．研究集会(I)3件，

れるものとします．

4. 応募方法
(1) 応募資格

(2) 応募方法

http://www.imi.kyushu-u.ac.jp/
から電子申請システムを利用して共同利用研究計画提案書を作成し，応募して

を通じて公開します．応募に必要なデータや公開する項目などの詳細について
は上記ページの説明をご覧下さい．なお，共同利用研究計画提案書には，研究

ば，その名前を記入していただきます．特にいなければ記入の必要はありませ
ん．なお，所内の関連研究者の記入の有無が採否に影響することはありません．
また，短期研究員の場合は，研究テーマに関連する九州大学の研究者の記入は

くは九州大学のウェブページをご参照下さい．

(3) 応募締切日

5. 選考方法と採否の連絡

ロジェクト代表者が審査し，共同利用・共同研究委員会で採否を決定します．
プロジェクト研究として採択されなくとも，一般研究として採択する場合もあ
ります．採否は平成31年2月末までに申請者にお知らせします．委員の名簿は

6. その他

だいても差し支えありませんが，主催は本研究所とします．共催の機関を加え
る必要がある場合は，申請時にその旨を「備考」に記入して下さい．また，研

して公開を遅らせることができます．これまで問い合わせのあった事項に関し
て「Q&A」を本研究所のウェブページに掲載していますので，参考にして下さ
い．短期研究員に関しては，必要があれば本研究所の産学連携窓口が立案を支

7. 問い合わせ先

〒819-0395 福岡市西区元岡744
Tel.: 092-802-4408
Fax: 092-802-4405
E-mail: kyoten-jimu  AT  imi.kyushu-u.ac.jp
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

平成30年11月30日
九州大学マス・フォア・インダストリ研究所長　佐伯 修

さて，このたび九州大学マス・フォア・インダストリ研究所では下記の要領で

くださいますよう，お願い申し上げます．
敬具

1. 公募対象：九州大学マス・フォア・インダストリ研究所 教授または准教授2名．

2. 専門分野：数学・数理科学（分野は問わない）．マス・フォア・インダス
トリの理念を理解し，その推進に尽力していただける方．

3. 採用予定日：採用決定後，できるだけ早い時期．

4. 任期：なし．

5. 給与：国立大学法人九州大学教員給与規程による．

6. 提出書類：
(1) 履歴書(写真貼付，署名捺印し，電話番号・電子メール等の連絡先を明記
のこと)．
(2) 研究業績リスト（論文，著書，講演，特許，外部資金，その他参考になる

なる資料等を含む)．
(3) 研究業績の説明．
(4) 将来の研究計画．マス・フォア・インダストリを推進する方法等について
も記述すること．
(5) 教育に対する抱負．
(6) ご本人について問い合わせることができる方3名の氏名と連絡先，および
そのうち1名からの推薦状．ただし，推薦状に関しては応募書類とは別便で推

ルやファックスによる推薦状は受け付けません．

7. 応募期限：平成31年2月18日（月）必着．

8. 書類提出先および問い合わせ先：
〒819-0395 福岡市西区元岡744　九州大学マス・フォア・インダストリ研究所

9. その他：
(1) 応募書類は原則として返却しません．返却を希望される方は，返送先住所
を記して切手を貼った返却用封筒を同封してください．
(2) 応募書類により取得する個人情報は，本人事案件にのみ利用します．
(3) 選考過程で面接審査を行う場合があります．その場合の交通費は原則とし
て自己負担とします．
(4) 九州大学マス・フォア・インダストリ研究所については，下記をご参照下さい．
http://www.imi.kyushu-u.ac.jp/
(5) 九州大学では，国際化を推進する観点から，採用後に英語による授業実施
に積極的に取り組むことを求めています．
(6) 九州大学では，「男女共同参画社会基本法(平成 11 年法律第 78 号)」の

(7) 九州大学では「障害者基本法(昭和 45 年法律第 84 号)」，「障害者の雇

る差別の解消の推進に関する法律 (平成 25 年法律第 65 号)」の趣旨に則り，

(8) 九州大学では，平成 29 年 7 月より配偶者帯同雇用制度を導入しています.

http://danjyo.kyushu-u.ac.jp/notice/view.php?cId=2600&
をご覧ください．

（このメールは複数のメーリングリストに投稿しております。重複してお受け取りの際は
ご容赦ください。）

タイトル: Nakashima-Zelevinsky polytopes from convex-geometric Demazure operators
アブストラクト: A Nakashima-Zelevinsky polytope is a rational convex polytope
whose lattice points give a polyhedral realization of a highest weight crystal
basis. This is also identical to a Newton-Okounkov body of a flag variety, and
it induces a toric degeneration. In this talk, we give a new construction of a
specific class of Nakashima-Zelevinsky polytopes by using Kiritchenko's
Demazure operators on polytopes. From this construction, we see that polytopes
in this class have the additivity with respect to the Minkowski sum. We also
give a geometric application to the normal toric variety associated with a
Nakashima-Zelevinsky polytope.

--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

topics日付: 2018年11月26日 17:08:33 JST

12月10日--14日に京都大学で開催予定の研究集会「Mirror symmetry for Fano
manifolds and related topics」のスケジュールが決まりましたのでお知らせ
いたします．

Kasprzyk, Yota Shamoto, Maxim Smirnov, Renato Vianna

スケジュール：

Ikeda水: 1 Kasprzyk 2 Smirnov (free afternoon)木: 1 Harder 2 Harder 3
Kasprzyk 4 Kasprzyk金: 1 Smirnov 2 Smirnov 3 Shamoto 4 Shamoto

-- 16:00, 5. 16:30 -- 17:30

https://www.math.kyoto-u.ac.jp/~iritani/mirrorsymmetry2018/workshop2018

-----------------------------

Date: Nov 29 (Thr), 16:30--18:00, 2018
Room: Room 110 Department of Mathematics, Kyoto Universtity
Speaker: Hitoshi Konno (Tokyo University of Marine Science and Technology)
Title: Elliptic Quantum Group and Elliptic Stable Envelopes
Abstract:

quiver varietyは一般旗多様体の余接束)について紹介する. この応用として, 楕円
q-KZ方程式の楕円超幾何積分解の導出や, Okounkovのvertex functionとの関係,
¥hat{sl}_N型楕円面模型のnested Bethe ansatz との関係, Gelfand-Tsetlin基底の

References:
H.Konno, Elliptic Weight Functions and Elliptic q-KZ Equation'',
J.Int.Systems 2 (2017)
H.Konno, Elliptic Stable Envelopes and Finite-dimensional Representations
of Elliptic Quantum Group'', J.Int.Systems 3 (2018).

-- Dec 11, 2018

Dear all,

I would like to announce the following Mathematics and String theory
seminar at IPMU

Speaker: Andrea Appel (U of Edinburgh)
Date:    Tue, Dec 11, 2018, 15:30 - 17:00
Place:    Seminar Room A

Title:    Dual exponentials and their quantization

Abstract: The linearization theorem of Ginzburg and Weinstein states that,
for any compact Lie group with its standard Poisson structure, there
exists a dual exponential, that is, a Poisson diffeomorphism between the
dual Poisson Lie group and the dual Lie algebra with the Kirillov Poisson
structure.This was later generalized by Boalch, through an irregular
Riemann-Hilbert correspondence, and by Enriquez-Etingof-Marshall, relying
on Etingof-Kazhdan quantization of Lie bialgebras.  In this talk, I will
show how, as initially conjectured by Ginzburg and Weinstein, examples of
dual exponentials in type A can be obtained as semiclassical limit of
certain explicit algebra isomorphisms between the quantum group of sl(n)
and the universal enveloping algebra. This is joint work with S. Gautam.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

クロスポストご容赦ください．

------------------------------------

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

The paradigm of investigating non-equilibrium phenomena by considering
stationary states of emergent hydrodynamics has attracted a lot of
attention in the last years. Recent proposals of an exact approach in
integrable cases, making use of TBA techniques, are presented and
discussed.

タイトル：曲線短縮方程式の離散化

アブストラクト：

ルとしてマリンズ (1956) によってに提案された平面曲線の発展方程式です。
その後、等周問題との関連からゲージとハミルトン (1986) やグレイソン
(1987)らによって研究が進められ、現在では解の時間無限大の漸近挙動がよく

に起因したさまざまな数値的不安定現象が起こりますが、そのような不安定現

らの数値スキームのポイントは非自明な接線速度を導入することにありますが、
このトークでは昨年ラーデマッヘルらによって提案された差分方程式をヒント
に、木村らとは違った観点から離散曲線短縮方程式を提案します。

Date: 29 December (Saturday) 15:30 - 16:30
Venue: C-716, West No.1 Building 7F, Kyushu University Ito Campus

Speaker: Nozomu Matsuura (Kurume Institute of Technology)
TItle: Discrete curve shortening equation

Abstract:
The curve shortening equation is an evolution equation of plane curves
proposed by Mullins (1956) as a mathematical model describing the
grain boundaries in the metal annealing. By the studies by
Gage-Hamilton (1986) and Grayson (1987), now the asymptotic behavior
as the time goes to infinity is understood well. On the other hand,
this equation is well-known as an example of non-integrable dynamics
of curves in the integrable geometry. Naive numerical computation
induces various numerical instabilities originating from extreme
concentration or dispersion of vertices. Kimura (1994) et al proposed
numerical schemes to avoid such instabilities, in which the critical
step is to introduce nontrivial tangential speeds. In this talk, we
propose a discrete curve shortening equation from a different
viewpoint from theirs, by modifying the difference equation proposed

２０１９年度年会（東工大）の講演申込は明日２３日23:59までです。

まだ間に合いますので、申込みよろしくお願いします。

-------- Forwarded Message --------
Subject:
2019年度日本数学会年会：講演登録開始
Date:
Fri, 2 Nov 2018 10:46:25 +0900
From:
Hitoshi KONNO

https://app.mathsoc.jp/titech19mar/

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/      Hitoshi Konno
_/  Dept. of Mathematics, Tokyo University of Marine Science and
_/  Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/      TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

**********************************************

ヤング盤の組み合わせ論にアプローチする手法が発見された．その後 Mikami, Katayama-
Kakei によって，ヤング盤とトロピカルKP方程式を結びつける別の関係が見つけられたが，
ことで，ヤング盤の組み合わせ論におけるいくつかの基本的定理（整化の一意性，Shape
Change Theorem）を簡明に証明することができる．本講演では，「整化の一意性」を例に
とり，ここで使われる手法について解説する．

URL：http://www.gem.aoyama.ac.jp/seminar.html
**********************************************

and Painleve equations」

「Conformal field theory, isomonodromy tau-functions and Painleve equations」
を今年も12月10日~12日の日程で開催します。皆様のご参加をお待ちいたします。

http://www2.kobe-u.ac.jp/~mhsaito/1812kobe/index.html
をご覧下さい。

(nagoya あっと se.kanazawa-u.ac.jp)へご連絡ください。

どうぞよろしくお願いいたします。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Dear Colleague,

We are writing to inform you of a workshop "Generalized Symmetries,
Anomalies, and Observables" to be held next summer at the Aspen Center
for Physics (ACP)
July 28 - August 17. The main topics are:

Generalized symmetries in quantum field theory and condensed matter physics
Anomalies of ordinary and generalized symmetries
Observables and symmetries

Details on these topics as conceived by the organizers are at

http://www.ma.utexas.edu/users/dafr/ACP2019.pdf

We also attach a short summary at the end of this message. The actual
content of the program will reflect the interests of the participants. There
will be a mix of mathematicians and physicists at the workshop and so an
opportunity for interaction on a wide range of topics.

There is a separate one-week winter conference at ACP on higher symmetries in
March. You can find information about it on the ACP website as well.

The Center invites participants through an application procedure and an
admissions, as our role is only advisory; we will encourage the committee to
admit as many participants to this workshop as possible. Applications are
available online at

https://www.aspenphys.org/physicists/summer/program/index.html

We encourage you to complete it as soon as possible; they are due on January
31. Funding for the workshop follows rules legislated by the Center.
Dislocation allowances (housing) are granted on a sliding scale.

The ACP provides an informal working environment. Each participant at the
Center has an office (two people per office). There are three one-story
buildings surrounding a common outdoor area, where people typically gather to
hold discussions. Lectures are held either outdoors or indoors. There is a
small library which is geared towards physics. The staff at the Center takes
care of housing arrangements, provides means for transportation (there are
bicycles for loan), and organizes barbecues and other activities.
Participants are housed in nicely furnished condominiums and houses in town.
There is a variety of units available, designed to accommodate bachelors,
couples, or families. The workshops at ACP are truly workshops, not
conferences. Formal sessions are infrequent, perhaps two or three each week,
so that most of the time at ACP is totally unstructured.

Beyond the Center is Aspen itself. The surrounding mountains offer a variety
of recreational possibilities---hiking, biking, jeep rides, etc.---while in
town one finds restaurants, shopping, night life, and many cultural events.
The heart of the renowned Aspen Music Festival coincides with our workshop.
There are many summer camps and day-care facilities. Spouses and children
will find plenty to do in Aspen.

Please do not hesitate to contact one of us if you have questions.

We hope to see you in Aspen next summer.

Sincerely,

David Ben-Zvi
Dan Freed
Anton Kapustin
Zohar Komargodski
******************************************************************************
Higher symmetries appear in many situations in high energy and condensed
matter theory. They act on non-local excitations and, like ordinary
symmetries, they may be spontaneously broken, softly broken, may have
't~Hooft anomalies, and can be coupled to background (higher) gauge fields.
Higher symmetries have applications to phases of quantum field theories, to
bosonization in higher dimensions, and to formulations of the hydrodynamic
theory of strongly interacting plasmas, among others. The workshop will
cover not only groups, but also algebras of higher symmetries. Their
structure can be expressed using the emerging theory of factorization
algebras, which play an important role in some mathematical approaches to
field theory. Examples include vertex algebras, which have recently
re-emerged in a prominent role in supersymmetric gauge theory. We encourage
high energy theorists, condensed matter theorists, and mathematicians
interested in this area to apply.
******************************************************************************

Dear all,

I would like to make a third announcement of the school/workshop

"Non-commutative deformations and moduli spaces", 19-23 November 2018,
Lecture Hall(1F), Kavli IPMU.

If you are planning to participate then please register on the workshop webpage

https://indico.ipmu.jp/indico/event/162/overview

The program and the schedule of the school/workshop is available by the link
above.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

11/20（火）に行われるSimon Ruijsenaars氏の講演のお知らせを再送します。

============================================================================
SEMINAR INFORMATION
============================================================================

connected to a great many subfields of pure and applied mathematics, and
that also find applications in various areas of physics. In this lecture
we aim to survey this class of systems and their manifold relations to
other subjects. As an illustration, we sketch the connection of the
hyperbolic relativistic systems to the solitons of the classical and
quantum sine-Gordon equation.
----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

ポスターが出来ましたので[MugenML 959]の再送をします。

１１月１４日（水）に研究集会を行います。

Meeting of crystal basis and quantum algebras and superalgebras

Room B121, Faculty of Science, University of Toyama

14 November, 2018

Program

9:00-10:00
Title: Strict Lusztig isomorphisms of Generalized quantum groups
Speaker: Hiroyuki Yamane (University of Toyama)

10:10-11:10
Title: Positivity condition of Polyhedral realizations of crystal bases
Speaker: Yuki Kanakubo (Sophia university)

11:20-12:20
Title: Decomposition Theorem for Product of Fundamental Crystals in
Monomial Realization
Speaker: Manal Alshuqayr (Sophia university), Co-speaker: Toshiki
Nakashima (Sophia university)

13:30-14:30
Title: On Sergeev-Veselov’s super Weyl groupoids.
Speaker: Yoshiyuki Koga (University of Fukui)

16:30-17:30
Colloquim, Department of Mathematics, University of Toyama
Title: On the structures and representations of quantum affine algebras
Speaker: Honglian Zhang （Shanghai University）

Abstracts

Hiroyuki Yamane:
Coxeter introduced Coxeter groups in 1934, and he classified the finite
Coxeter groups in 1935. Those are classified into ${¥mathrm{A}}_n$,
${¥mathrm{B}}_n = {¥mathrm{C}}_n$, ${¥mathrm{D}}_n$, ${¥mathrm{F}}_4$,
${¥mathrm{E}}_6$, ${¥mathrm{E}}_7$, ${¥mathrm{E}}_8$,
${¥mathrm{G}}_2$, ${¥mathrm{I}}_n$, ${¥mathrm{H}}_3$ and ${¥mathrm{H}}_4$.
Coxeter groups appear in many areas of Algebra
and Geometry. One of the areas is the representation theory of Lie algebras.
Perhaps from 1970's, many researchers have considered that they needed
Coxeter groupoids' being applied for study of the representation theory
of Lie superalgebras. In2000's, Coxeter groupoids' also became necessary
for study of Hopf algebras calledGeneralized quantum groups (GQGs)'. A
GQG can be a quantum group, a multi-parameter quantum group,a quantum
group at a root of unity, a quantum superalgebra, or the quantum double of
a Nichols algebra of diagonal-type.Heckenberger showed that there are
Lusztig-type isomorphisms of GQG satisfying braid relations up to scalar.
Jing-Misra-Yamane showed Heckenberger's Lusztig-type isomorphismsof the
multiprameter quantum groups can be arranged so that they can satisfy
strict braid relations.

Yuki Kanakubo:
Nakashima and Zelevinsky invented polyhedral realization', which is a
kind of description of crystal bases as lattice points in some
polyhedral convex cone.

To construct the polyhedral realization, we need an infinite sequence
$¥iota$ of indices.  In the case $¥iota$ satisfies a positivity
condition', Nakashima and Zelevinsky also found a method to obtain the
polyhedral realization associated with $¥iota$. However, it seems to be
difficult to check whether $¥iota$ satisfies the positivity condition or
not.

In this talk, I will give a sufficient condition of $¥iota$ for
positivity condition and an explicit form of the polyhedral realization.

Manal Alshuqayr:
It is well-known that crystal bases hold the tensor product  structure,
which makes their structure much deeper and wider. There are many kinds
of realizations of crystal bases, $e.g.$, tableaux realization, path
realization, polyhedral realization, geometric realization, $etc$. We
shall treat "monomial realization" of crystal bases, which has been
originally introduced by H.Nakajima and refined by M.Kashiwara. In
monomial realization, each crystal base $B(¥lambda)$ is given as a set
of certain Laurent monomials. Besides the tensor product, monomial
realizations have a natural product structure as Laurent monomials,
though it is not clear whether they are closed by Kashiwara operators
or not. In the talk, we shall treat the following problems:
(1)For type A, in the fundamental weight cases,
does the product of monomial realizations hold the crystal base
structure?
(2) If the answer (1) is positive, how are the decomposition for the
product of monomial realizations described?

In the talk we shall present the answers of these two problems.
(This is a joint work with T.Nakashima).

Yoshiyuki Koga:
I will talk about a relation between super Weyl groupoids defined by
Sergeev and Veselov and Coxeter groupoids by Heckenberger and Yamane.
Moreover, we will see that the super Weyl groupoid describes the
structure of certain generalized Verma modules in the case of the simple
Lie superalgebra sl(2,1).

Honglian Zhang:
It is well known that quantum affine algebras admit two realizations
because they are both quantum Kac-Moody algebras and quantum
affinizations. In general, a quantum affinization is not a quantum Kac-
Moody algebra. The representation theory of quantum affine algebras is
very rich and interesting.

In this talk, I will review some results on the structures and
representations of quantum affine algebras and discuss some related
problems. The talk is based on the joint work with Professor N. Jing.

よろしくお願いします。

山根宏之
http://www3.u-toyama.ac.jp/hiroyuki/

Expressive Image Synthesis」のご案内

# 複数のメーリングリストで案内しております。
# 重複して受取られた方はご容赦ください。

もと、下記のようにシンポジウムを実施します。皆さまのご参加をお待ちしております。

-----

Meis2018: Mathematical Progress in Expressive Image Synthesis
2018年12月8日（土）午後から9日（日）昼まで

このシンポジウムは数学とCGを中心に、それらの応用に関する様々な分野の方を招いて

リング、メッシュ生成、位相的データ解析、離散微分幾何、流体シミュレーションなど

12月8日（土）
13:00-13:50 Takashi Ijiri: TBA
14:00-14:50 Hongzhi Wu: TBA
15:10-16:00 Takaharu Yaguchi: TBA
16:10-17:00 Jonathan Dupuy: TBA
17:10-18:00 J.P. Lewis: Visual Art, the Brain, and Neural Image Synthesis

12月9日（日）
9:30-10:20 Ippei Obayashi: Theory and applications of persistent homology
10:30-11:20 Kenshi Takayama: Interactive approaches to robust and
11:30-12:20 Albert Chern: Geometric Approaches to Computational Problems

の開催に合わせ、東京にて行います。

registrationにて参加登録（無料）をお願いいたします。締め切りは11月30日（金）
までです。

また、12月8日（土）の懇親会（有料）への参加申し込みもregistrationの画面で

は11月18日（日）までです。

シンポジウム・コチェア

--

Claire Gilsonさん)

MUGEN_MLのみなさま

こんにちは。お世話になります。直前のアナウンスで恐れ入ります、、

English announcement is here:
http://www.math.nagoya-u.ac.jp/en/research/calendar/data/1537398368-23.html

-----------------------------------------------------

タイトル： Quasi Pfaffians and non-commutative integrable systems

セミナーページ：http://www.math.nagoya-u.ac.jp/~hamanaka/seminar.html
----------------------------------------------------

それではどうかよろしくお願いいたします。

はま中

2nd Announcement

Dear all,

I would like to make a second announcement of the workshop

"Non-commutative deformations and moduli spaces", 19-23 November 2018,
Lecture Hall(1F), Kavli IPMU.

If you are planning to participate then please register on the workshop
webpage

https://indico.ipmu.jp/indico/event/162/overview
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

みなさま

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Date: Nov. 16 (Fri), 16:30--18:00, 2018
Room RIMS 402
Speaker: 柴田大樹 (岡山理科大）
Title: Quasireductive supergroups and their representations
Abstract:
スーパー代数群は代数群のスーパー類似物として定義される．これは単なる一般化
ではなく，代数群の（モジュラー）表現論への応用があるなど興味深い対象である．
これまでスーパー代数群の研究は具体的な対象を扱ったものばかりであったが，
V. Serganova (2011) はスーパー・シュヴァレー群や queer スーパー群 Q(n) を

そのスーパー・リー代数 Lie(G) の有限次元既約表現を構成している．本講演では
ホップ代数的アプローチによるスーパー代数群の構造論および表現論の研究手法を

あるスーパー余可換ホップ代数 hy(G) の可積分''表現圏とが圏同値であることを

これは Serganova の構成した既約表現と一致している．また G が良いスーパー

（このメールは複数のメーリングリストに投稿しております。重複してお受け取りの際は
ご容赦ください。）

ご注意ください。)

タイトル: Preprojective algebras of Dynkin type and two-sided tilting complexes
アブストラクト: In this talk, we discuss tilting theory of preprojective
algebras of Dynkin type. In the case of non-Dynkin type, we can give a simple
and explicit description of two-sided tilting complexes, which provide
auto-equivalences of the derived categories. On the other hand, in the case
of Dynkin type, tilting theory is more involved and such a description hasn't
been discovered. In this talk, we discuss tilting theory of preprojective
algebras of Dynkin type and explain a construction of two-sided tilting
complexes.

--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

https://app.mathsoc.jp/titech19mar/

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/      Hitoshi Konno
_/  Dept. of Mathematics, Tokyo University of Marine Science and
_/  Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/      TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

noncommutative algebra

みなさま（重複配信お許しください）

Workshop on McKay correspondence and noncommutative algebra

Date: November 16 - 17, 2018

Place: Graduate School of Mathematics, Nagoya University

Speakers:
Alastair Craw (Bath, UK),
Alvaro Nolla de Celis (UAM, Spain)
Will Donovan (Tsinghua, China )
Yusuke Nakajima (Kavli IPMU, Japan)
Aaron Chan (Nagoya, Japan)
Ryo Yamagishi (Kyoto, Japan)
Sota Asai (Nagoya, Japan)
Wahei Hara (Waseda, Japan)
Ayako Kubota (Waseda, Japan)
Yusuke Sato (Nagoya, Japan)
Yasuaki Gyoda (Nagoya, Japan)

Program will be announced on

Organizers:
Yukari Ito, Akira Ishii, Osamu Iyama
(Nagoya University)

みなさま

---------------------------------------------------------------------------

Title: Heun's differential equation（ホインの微分方程式）
Abstract:　超幾何微分方程式は３点 0,1,∞ に確定特異点をもつリーマン球面上の

そして、ホインの微分方程式はリーマン球面上の４点に確定特異点をもつ線形二階

ホイン対応、q変形、多項式解、楕円関数による表示とその応用を挙げておく。
It is well known that the hypergeometric equation is a standard form
of the linear second order differential equation with three regular
singuarities 0,1 and infinity on the Riemann sphere, and it appears
frequently in mathematics and physics. Heun's differential equation
is a standard form of the linear second order differential equation
with four regular singuarities on the Riemann sphere. I explain some
aspects of Heun's differential equation which would be concerned with
accessory parameter, Painleve-Heun correspondence, q-deformation,
polynomial solutions, expression in terms of elliptic function and
its application.

Workshop "Rikkyo MathPhys 2019"

Antonio Sciarappa [KIAS]
Kentaroh Yoshida [Kyoto Univ]
Yutaka Yoshida [Kavli IPMU]
Masaki Shigemori [Nagoya Univ]
Atsuo Kuniba [Tokyo Univ]
Tomohiro Sasamoto [TITECH]
Toshio Nakatsu [Setsunan Univ]
Takeshi Ikeda [Okayama Univ of Science]

ご覧いただければ幸いです。

(November 8th)

ただし、普段とは曜日、時間、部屋が異なる点にはご注意ください。

なお、セミナーの後に懇親会を予定しています。参加予定の方は予約の

よろしくお願いします。

——————————
Room: Kyoto University North Campus
Maskawa Building for Education and Research Room 507
(North direction from the RIMS main building)

Date: Nov. 8 (Thurs), 13:00–14:15, 2018
Speaker: Myungho Kim (Kyung Hee University)
Title:
Laurent phenomenon and simple modules over symmetric quiver Hecke algebras
Abstract: The unipotent quantum coordinate ring $A_q(n(w))$ is isomorphic to
the Grothendieck ring of a monoidal category $C_w$ consisting of some finite
dimensional graded modules over a quiver Hecke algebra. Moreover $A_q(n(w))$
has a quantum cluster algebra structure, and it is shown that the cluster
monomials are classes of real simple modules in $C_w$. In this talk, I will
present some interesting consequences of this "monoidal categorification" of
$A_q(n(w))$  with the Laurent phenomenon of the cluster algebras.  This is a
joint work with Masaki Kashiwara.

Date: Nov. 8 (Thurs), 14:30–16:15, 2018
Speaker: Shunsuke Tsuchioka (Tokyo Institute of Technology)
Title: A local characterization of $B_2$ regular crystals
Abstract:
Stembridge characterizes regular crystals associated with a simply-laced GCM
in terms of local graph-theoretic quantities. We give a similar axiomatization
for $B_2$ regular crystals and thus for regular crystals of finite GCM except
$G_2$ and affine GCM except $A^{(1)}_1, G^{(1)}_2, A^{(2)}_2, D^{(3)}_4$.
As we will explain in detail the previous studies, finding a set of local
axioms that characterizes $B_2$ regular crystals has been an open problem.

Date: Nov. 8 (Thurs), 16:30–18:00, 2018
Speaker: Toshiyuki Tanisaki (Osaka City University)
Title: ある誘導表現の計算
Abstract:
$G$を複素数体上の単純代数群，$T$, $B$を$G$の極大トーラス，およびBorel部分群
とする．また，$G$, $B$, $T$の座標環を$A(G)$, $A(B)$, $A(T)$で表す．$A(B)$を

わかる．講演者は，1のベキ根での量子群においても同様の事が成り立つことを予想
した．講演では，$A$型の場合のこの予想の証明を述べる予定である．なお，この

ベキ根での量子群の表現に関するLusztigの予想が正しいことがわかる．

どうぞよろしくお願い致します。

ウィロックス ラルフ
-----------------------------------------------------------------------

タイトル : Integrability for four-dimensional recurrence relations

アブストラクト :
In this talk, we study some fourth-order recurrence relations (or mappings).
These recurrence relations were obtained by assuming that they possess two
polynomial integrals with certain degree patterns. For mappings with cubic
growth, we will reduce them to three-dimensional ones using a procedure
called deflation. These three-dimensional maps have two integrals;
therefore, they are integrable in the sense of Liouville-Arnold.
Furthermore, we can reduce the obtained three-dimensional maps to two-
dimensional maps of Quispel-Roberts-Thompsons (QRT) type. On the other hand,
for recurrences with quadratic growth and two integrals, we will show that
they are integrable in the sense of Liouville-Arnold by providing their
Poisson brackets. Non-degenerate Poisson brackets can be found by using
the existence of discrete Lagrangians and a discrete analogue of the
Ostrogradsky transformation.  This is joint work with G. Gubbiotti,
N. Joshi, and C-M. Viallet.

URL:  http://www.ms.u-tokyo.ac.jp/seminar/2018/sem18-218_e.html
-----------------------------------------------------------------------

１１月１４日（水）に研究集会を行います。

Meeting of crystal basis
and quantum algebras and superalgebras

Room B121, Faculty of Science, University of Toyama

14 November, 2018

Program

9:00-10:00
Title: Strict Lusztig isomorphisms of Generalized quantum groups
Speaker: Hiroyuki Yamane (University of Toyama)

10:10-11:10
Title: Positivity condition of Polyhedral realizations of crystal bases
Speaker: Yuki Kanakubo (Sophia university)

11:20-12:20
Title: Decomposition Theorem for Product of Fundamental Crystals in
Monomial Realization
Speaker: Manal Alshuqayr (Sophia university), Co-speaker: Toshiki
Nakashima (Sophia university)

13:30-14:30
Title: On Sergeev-Veselov’s super Weyl groupoids.
Speaker: Yoshiyuki Koga (University of Fukui)

16:30-17:30
Colloquim, Department of Mathematics, University of Toyama
Title: On the structures and representations of quantum affine algebras
Speaker: Honglian Zhang （Shanghai University）

Abstracts

Hiroyuki Yamane:
Coxeter introduced Coxeter groups in 1934, and he classified the finite
Coxeter groups in 1935. Those are classified into ${¥mathrm{A}}_n$,
${¥mathrm{B}}_n = {¥mathrm{C}}_n$, ${¥mathrm{D}}_n$, ${¥mathrm{F}}_4$,
${¥mathrm{E}}_6$, ${¥mathrm{E}}_7$, ${¥mathrm{E}}_8$,
${¥mathrm{G}}_2$, ${¥mathrm{I}}_n$, ${¥mathrm{H}}_3$ and ${¥mathrm{H}}_4$.
Coxeter groups appear in many areas of Algebra
and Geometry. One of the areas is the representation theory of Lie
algebras.
Perhaps from 1970's, many researchers have considered that they needed 
Coxeter groupoids'
being applied
for study of the representation theory of Lie superalgebras. In
2000's, Coxeter groupoids' also became necessary for study of Hopf
algebras called
Generalized quantum groups (GQGs)'.
A GQG can be a quantum group, a multi-parameter quantum group,
a quantum group at a root of unity,
a quantum superalgebra, or the quantum double of a Nichols algebra of
diagonal-type.
Heckenberger showed that there are Lusztig-type isomorphisms of GQG
satisfying braid relations up to scalar.
Jing-Misra-Yamane showed Heckenberger's Lusztig-type isomorphisms
of the multiprameter quantum groups
can be arranged so that they can satisfy strict braid relations.

Yuki Kanakubo:
Nakashima and Zelevinsky invented
polyhedral realization', which is
a kind of description of crystal bases
as lattice points
in some polyhedral convex cone.

To construct the polyhedral realization,
we need an infinite sequence $¥iota$ of indices.
In the case $¥iota$ satisfies a positivity condition',
Nakashima and Zelevinsky also found a method to obtain
the polyhedral realization associated with $¥iota$.
However, it seems to be difficult
to check whether $¥iota$ satisfies the positivity condition or not.

In this talk, I will give a sufficient condition of $¥iota$ for
positivity condition
and an explicit form of the polyhedral realization.

Manal Alshuqayr:
It is well-known that crystal bases hold the tensor product
structure, which makes their structure much deeper and wider.
There are many kinds of realizations of crystal bases, $e.g.$,
tableaux realization, path realization, polyhedral realization,
geometric realization, $etc$. We shall treat "monomial realization"
of crystal bases, which has been originally introduced by H.Nakajima
and refined by M.Kashiwara.
In monomial realization, each crystal base $B(¥lambda)$
is given as a set of certain Laurent monomials.
Besides the tensor product, monomial realizations have a natural product
structure
as Laurent monomials, though it is not clear whether they are
closed by Kashiwara operators or not.
In the talk, we shall treat the following problems:
(1)For type A, in the fundamental weight cases,
does the product of monomial realizations hold the crystal base
structure?
(2) If the answer (1) is positive, how are the decomposition for the
product of monomial realizations described?

In the talk we shall present the answers of these two problems.
(This is a joint work with T.Nakashima).

Yoshiyuki Koga:
I will talk about a relation between super Weyl groupoids defined by
Sergeev and Veselov and Coxeter groupoids by Heckenberger and Yamane.
Moreover, we will see that the super Weyl groupoid describes the
structure of certain generalized Verma modules in the case of the simple
Lie superalgebra sl(2,1).

Honglian Zhang:
It is well known that quantum affine algebras admit two realizations
because they are both quantum Kac-Moody algebras and quantum
affinizations. In general, a quantum affinization is not a quantum Kac-
Moody algebra. The representation theory of quantum affine algebras is
very rich and interesting.

In this talk, I will review some results on the structures and
representations of quantum affine algebras and discuss some related
problems. The talk is based on the joint work with Professor N. Jing.

よろしくお願いします。

山根宏之
http://www3.u-toyama.ac.jp/hiroyuki/

11月12日（月）から16日（金）まで福岡のJR博多駅シティ会議室で国際研究集会
SIDE13が実施される予定です．

http://side13conference.net

しなくてはなりません．

【ご注意】SIDE13の当日参加について

SIDE13には，実行委員会の当初の予想を遥かに超える大変多くの参加者にご登録
いただき，現時点で既に会場定員から数名分の余裕しかありません．したがって，

お問い合わせください．もしまだ席に余裕がある場合にはご参加いただけます．
その場合，参加費として当日40,000円を現金でお支払いください．なお，遠足と

=================================================

819-0395 福岡市西区元岡744 Tel.& Fax 092-802-4488
=================================================

※※当メールを重複して受け取られた場合はご容赦ください※※

の若手研究者や学生の方にもお声掛け頂ければ幸いです。たくさんのご参加をお待ち
しております。

また、第一線ご活躍中の研究者の方々を招待講演者に迎え、ご自身の研究について

(1) 一般講演：自分の研究について、専門外の参加者にもわかりやすいように

(2) ショートセッション：自分が興味をもっていることや、勉強・研究している
ことについて発表していただきます (20分程度)

また、遠方から参加される方向けに、宿泊場所を用意することを予定しています。

‭https://www.math.kyoto-u.ac.jp/insei/?MATHSCI%20FRESHMAN%20SEMINAR%202019

( 受付期間： 2018年10月01日 (月) – 10月31日 (水) )

また懇親会も予定しておりますので、交流や研究内容に関する議論の場として
お役立てください。多くの方々の参加をお待ちしています。

------------------------------------------------------------------------

(京都大学D1)

ウェブサイト: https://www.math.kyoto-u.ac.jp/insei/?MATHSCI%20FRESHMAN%20SEMINAR%202019

**********************************************
**********************************************

Cremona isometries

rational surfaces [1], there has been much interest in the range of
integrable equations arising from each of the 22 surface types in Sakai’s
list. For all but the most degenerate type in the list, the surfaces come
in families which admit affine Weyl groups of symmetries, translation
elements of which define discrete Painlevé equations with the same number
of parameters as their family of surfaces. While non-translation elements
of the symmetry group have been observed to correspond to discrete systems
of Painlevé-type through projective reduction [2], the resulting equations
have fewer than the maximal number of free parameters corresponding to
their surface type. We show that equations with the full number of free
parameters can be constructed from non-translation elements of infinite
order in the symmetry group, constructing several examples and demonstrating
their integrability. This is prompted by the study of a previously proposed
discrete Painlevé equation related to a special class of discrete analogues
of surfaces of constant negative Gaussian curvature [3]. We obtain a
full-parameter generalisation of this equation from the Cremona action of
anon-translation element of the extended affine Weyl group of type D4(1) on
a family of generic D4(1)-surfaces.
References:
• [1] H. Sakai, Rational surfaces associated with affine root systems and
geometry of the Painlevé equations, Commun. Math. Phys. 220 (1) : 165–229
(2001).
• [2] K. Kajiwara, N. Nakazono, and T. Tsuda, Projective reduction of the
discrete Painlevé system of type (A2 + A1)(1), Int. Math. Res. Not. IMRN
2011 (4) : 930–966 (2011).
• [3] T. Hoffman, Discrete Amsler surfaces and a discrete Painlevé III
equation. In A. Bobenko and R. Seiler, editors, Discrete integrable geometry
and physics, pages 83–96. Oxford University Press (1999).

URL：http://www.gem.aoyama.ac.jp/seminar.html
**********************************************
**********************************************

-- Nov 13, 2018

Dear all,

I would like to announce the following Mathematics and String theory
seminar at Kavli IPMU.

Speaker: Anton Fonarev (HSE Moscow)
Date: Tue, Nov 13, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: On the generalised Dubrovin’s conjecture for Grassmannians

Abstract: A celebrated conjecture by Dubrovin gives an intriguing relation
between the quantum cohomology of a smooth projective variety and the
bounded derived category of coherent sheaves on it. More precisely, it says
that having generically semisimple big quantum cohomology is equivalent to
admitting a full exceptional collection in the derived category. Several
years ago S. Galkin, A. Melit, and M. Smirnov and independently N. Perrin
showed that the conjecture does not hold if big quantum cohomology is
replaced by small quantum cohomology. However, in their recent preprint A.
Kuznetsov and M. Smirnov suggested addendum to Dubrovin’s conjecture which
suggests that semisimplicity of the small quantum cohomology of a smooth
Fano variety with Picard rank equal to 1 implies existence of an exceptional
collection with some exceptionally nice properties in its derived category.
They also did some work towards the proof of their conjecture for classical
Grassmannians.

It the first part of the talk we will broadly cover the history of
Dubrovin’s conjecture and its modifications. In the second part of the talk
we will explain how to check that the Kuznetsov–Smirnov conjecture in the
surprisingly nontrivial case of the classical Grassmannian varieties.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

（リマインダー）

よろしくお願いいたします。

---------- Forwarded message ---------
Date: 2018年10月22日(月) 19:59
Subject: 第１５回数学総合若手研究集会：講演者募集のご案内（リマインダー）

※※当メールを重複して受け取られた場合はご容赦下さい※※

が近づいてまいりましたので、再送いたします。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

の講演の申し込みが１０月１日より開始いたしますので、改めてご案内申し上げます。

ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー

＊名称

＊日程
２０１９年３月４日（月）～３月７日（木）

＊場所

＊URL
http://www.math.sci.hokudai.ac.jp/~wakate/mcyr/2019/ja/index.html

＊問い合わせ先
wakate AT math.sci.hokudai.ac.jp

＊講演ご希望の方へ

【講演形式について】

シングルセッション（質疑含め６０分程度）とパラレルセッション（質疑含め
３０分程度）に分けられています。シングル・パラレルの振り分けは世話人で

プロジェクター、OHP、黒板をご使用いただけます。講演形式の詳細につきましては、

【講演申し込み】

＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝申し込み内容＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

フリガナ（カタカナ・ローマ字の両方）

メールアドレス

アブストラクト（２００文字程度。日本語推奨。LaTeXコマンド可。）

その他のご要望
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

なお、誠に申し訳ありませんが、申込多数の場合、講演枠の都合上、申込をお断りする

【募集期間】
１０月１日（月）～ １０月３１日（水）

【旅費の援助をご希望の方へ】
・原則、全日程の参加をお願い致します。
・予算が非常に限られた中で運営しておりますので、ご希望に添えない場合がございます。
ご自身、あるいは所属研究室等の研究費が使用可能な場合は、必ずそちらをご使用下さい
ますようお願い致します。
・私用を兼ねた出張には旅費援助は致しかねます。
・日当はお支払いできません。

【講演者選考後の講究録（テクニカルレポート集）原稿の提出について】

（テクニカルレポート集）の原稿（A4縦２～１０ページ）の提出をお願いする予定です。
なお、紙媒体の講究録（テクニカルレポート集）の配布はいたしません。Web上にて
ファイルを公開いたしますので、必要に応じてダウンロード及び印刷願います。

ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー
----------

http://www.math.sci.hokudai.ac.jp/~wakate/mcyr/2019/ja/index.html
----------
--
Masahiko Yoshinaga
Department of Mathematics,
Hokkaido University,
North 10, West 8, Kita-ku,
Sapporo, 060-0810, JAPAN

Date: November 2nd 2018
Time: 5:30-6:30 pm
Place: 上智大学市ヶ谷キャンパス本館201　Ichigaya Campus, Rm.201
(四谷ではないのでご注意ください）
https://www.sophia.ac.jp/jpn/info/access/accessguide/access_ichigaya.html
Speaker: 井上　玲 Rei Inoue (千葉大学 Chiba University)
Title: Cluster algebraic structure of geometric R-matrices

Abstract: The geometric R-matrices are rational version of the combinatorial
R-matrices acting on crystals. In this talk we consider the affine geometric
R-matrix of symmetric tensor representations of the quantum group of affine
A-type. We introduce cluster R-matrices as sequences of mutations in
triangular grid quivers on a cylinder, and show that the affine geometric
R-matrix is compatible' with the cluster R-matrix. Further we study a
quantization of the affine geometric R-matrix, compatible with the quantum
cluster structure a la Fock and Goncharov. We also mention the invariants
of the quantum affine geometric R-matrix, which are quantum analogues of
the loop symmetric functions. This talk is based on a joint work with
Thomas Lam and Pavlo Pylyavskyy.

As usual, the colloquium will be followed by a dinner party. If you want to
----------------------------------------------

Nalini Joshi先生を講師としてお迎えして早稲田大学数学応用数理談話会を

よろしくお願いします．

——

（午後４時から午後４時３０分まではティータイム）

N-dimensions, as equations fitted together in a self-consistent way on a
square, a cube or an N-dimensional cube. We show to find their symmetry
reductions (and other properties) through a geometric perspective.

-----

rational maps

differential equations has been at the forefront of mathematical physics
since the time of Galileo and Newton. In this talk our aim will be to
develop an analogous theory for the (arguably more general) discrete-time
case. This will lead to linear algorithms for detecting and determining
preserved measures and integrals of rational maps.

http://www.f.waseda.jp/kmaruno/isseminar.html

Dear all,

I would like to announce the following workshop:

"Non-commutative deformations and moduli spaces", 19-23 November 2018,
Lecture Hall(1F), Kavli IPMU.

For more details please refer to the workshop webpage

https://indico.ipmu.jp/indico/event/162/overview

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

みなさま(重複受信お許しください）

ご興味のありそうな方にお伝えいただけたら幸いです。

Date: November 16 - 17, 2018

Place: Graduate School of Mathematics, Nagoya University

Speakers:
Alastair Craw (Bath, UK),
Alvaro Nolla de Celis (UAM, Spain)
Will Donovan (Tsinghua, China)
Yusuke Nakajima (Kavli IPMU, Japan)
Aaron Chan (Nagoya, Japan)
Sota Asai (Nagoya, Japan)
Kenta Shirakawa (Hiroshima, Japan)
Yusuke Sato (Nagoya, Japan)

Program will be announced on

Organizers:
Yukari Ito, Akira Ishii, Osamu Iyama (Nagoya University)

※なお、11月16日に懇親会を開催する予定ですので、参加希望の方は

Dear all,

I would like to announce the following two Mathematics and String theory
seminars at Kavli IPMU

1) Speaker: Mauro Porta (U of Strasbourg)
Date:    Thu, Nov 15, 2018, 15:30 - 17:00
Place:    Seminar Room A

Title: Virtual classes in analytic geometry.

Abstract: In this talk I will survey ongoing work with T. Y. Yu. In the first
introductory part of the talk I will explain general motivations that lead
to consider virtual classes and I will give examples arising from different
areas. I will also explain how derived geometry can be successfully used to
construct and sometimes compute virtual classes in these situations. In the
second part of the talk, I will focus on the analytic aspects of the theory.
I will review the main foundational results of derived analytic geometry
and I will survey recent progresses in my joint work with T. Y. Yu on the
construction of non-archimedean Gromov-Witten invariants.

2) Speaker: Alastair Craw    (U of Bath)
Date:    Wed, Nov 21, 2018, 15:30 - 17:00
Place:    Lecture Hall

Title:    Birational geometry of symplectic quotient singularities

Abstract: For a finite subgroup G of SL(2,C), a well known construction of
Kronheimer realises the minimal resolution S of the Kleinian singularity
C^2/G as a quiver variety, and implies that the ample cone of S is a Weyl
chamber in the root system of type ADE associated to G by the McKay
correspondence. For any n>1, there is a natural generalisation to dimension
2n, namely, the Hilbert scheme X=Hilb^[n](S) of n points on S, which is
itself a resolution of a symplectic quotient singularity C^{2n}/G_n; here,
G_n is the wreath product of G with S_n. In dimension greater than two,
minimal resolutions are not unique, so one expects the situation to be much
more complicated. While this is the case, I'll explain why every projective,
crepant resolution of C^{2n}/G_n is a quiver variety and, in addition, why
the movable cone of X can be described in terms of an extended Catalan
hyperplane arrangement of the root system associated to G. The Namikawa
Weyl group arises naturally in this context, and it plays a key role. This
is joint work with Gwyn Bellamy.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

（10/31 庵原謙治氏，11/8 Giorgio Gubbiotti氏，11/20 Simon Ruijsenaars氏）

============================================================================
SEMINAR INFORMATION
============================================================================

この講演では、知られている事実について、簡単に述べた後に、A_{2l}^{(2)}の場合に
どのようにして証明するかを説明する。
なお、この結果は立教大学の斉藤義久氏との共同研究によって得られたものである。

Lagrange is the calculus of variations. The variational formulation of
mechanics where the equations of motion arise as the minimum of an action
functional (the so-called Hamilton's principle), is fundamental in the
development of theoretical mechanics and its foundations are present in each
textbook on this subject [1, 3, 6]. Beside this, the application of calculus
of variations goes beyond mechanics as many important mathematical problems,
e.g. the isoperimetrical problem and the catenary, can be formulated in terms
of calculus of variations.
An important problem regarding the calculus of variations is to determine
which system of differential equations are Euler-Lagrange equations for some
variational problem. This problem has a long and interesting history, see
e.g. [4]. The general case of this problem remains unsolved, whereas several
important results for particular cases were presented during the 20th
century.
In this talk we present some conditions on the existence of a Lagrangian in
the discrete scalar setting. We will introduce a set of differential
operators called annihilation operators. We will use these operators to
reduce the functional equation governing of existence of a Lagrangian for
a scalar difference equation of arbitrary even order 2k, with k > 1 to the
solution of a system of linear partial differential equations. Solving such
equations one can either find the Lagrangian or conclude that it does not
exist.
We comment the relationship of our solution of the inverse problem of the
discrete calculus of variation with the one given in [2], where a result
analogous to the homotopy formula [5] for the continuous case was proven.

References
[1] H. Goldstein, C. Poole, and J. Safko. Classical Mechanics.
Pearson Education, 2002.
[2] P. E. Hydon and E. L. Mansfeld. A variational complex for difference
equations. Found. Comp. Math., 4:187{217, 2004.
[3] L. D. Landau and E. M. Lifshitz. Mechanics. Course of Theoretical
Physics. Elsevier Science, 1982.
[4] P. J. Olver. Applications of Lie Groups to Differential Equations.
Springer-Verlag, Berlin, 1986.
[5] M. M. Vainberg. Variational methods for the study of nonlinear operators.
Holden-Day, San Francisco, 1964.
[6] E. T. Whittaker. A Treatise on the Analytical Dynamics of Particles and
Rigid Bodies. Cambridge University Press, Cambridge, 1999.

connected to a great many subfields of pure and applied mathematics, and that
also find applications in various areas of physics. In this lecture we aim to
survey this class of systems and their manifold relations to other subjects.
As an illustration, we sketch the connection of the hyperbolic relativistic
systems to the solitons of the classical and quantum sine-Gordon equation.

----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

を開催しますのでご案内します．

タイトル：Loop structure on equivariant $K$-theory of
semi-infinite flag manifolds

アブストラクト: 半無限旗多様体は旗多様体のループ空間の代数的類似物であり、
ループの種類に応じて複数のバージョンがある。この講演ではまずループとして

ループとして多項式ループを取った場合を介して入谷-Milanov-Tonitaの議論を援用
することでここでいう半無限旗多様体の同変$K$群と旗多様体の同変(小)量子$K$-群
(の局所化)が自然に同型であることを説明する。

アフィングラスマン多様体と呼ばれるコンパクト群のループ空間の代数版の同変$K$-群
の局所化とも(自然な類、作用を保つ形でほぼ)同型であることなどを説明する。

この講演の内容は主として[arXiv:1702.02408 (joint with 内藤/佐垣)]、
[arXiv:1805.01718]、および準備中の論文にもとずく。

-----------

-----------------------------
Date: Oct 26 (Fri), 16:30--18:00, 2018
Room: RIMS 402
Speaker: Dinakar Muthiah (IPMU)
Title: Toward double affine flag varieties and Grassmannians
Abstract:
Recently there has been a growing interest in double affine Grassmannians,
especially because of their relationship with Coulomb branches of quiver
gauge theories. However, not much has been said about double affine flag
varieties. I will discuss some results toward understanding double affine
flag varieties and Grassmannians (and their Schubert subvarieties) from
the point of view of $p$-adic Kac-Moody groups. I will discuss Hecke
algebras, Bruhat order, and Kazhdan-Lusztig polynomials in this setting.
This includes work joint with Daniel Orr and joint with Manish Patnaik.

「日本数学会奨励研究生」2019年度分の募集の案内が

http://mathsoc.jp/publicity/news20181003/2019shourei.html

（このメールは複数のメーリングリストに投稿しております。

タイトル: Cluster realizations of Weyl groups and their application
アブストラクト: Cluster algebras are commutative algebras which are determined
from combinatorial data represented by weighted quivers. These combinatorial
data are used for successive construction, called mutation, of algebra
generators. A cluster modular group is the group consisting of automorphisms
of a cluster algebra which are given by mutation sequences preserving a given
weighted quiver. In this talk, we realize the Weyl groups associated with
symmetrizable Kac-Moody Lie algebras as subgroups of cluster modular groups.
We explain application of our construction of Weyl groups : An algebraic
application is a systematic construction of green sequences associated with
reduced words of elements of the Weyl group. In particular, if a given
Kac-Moody Lie algebra is of finite type, then reduced words of the longest
element give the maximal green sequences (and the cluster Donaldson-Thomas
transformation) associated to our weighted quiver. As a geometric application,
we discuss the comparison between our realization of the Weyl group and a
geometric action of the Weyl group on the moduli space of twisted decorated
$G$-local systems on a marked surface, which is known to be a cluster variety.
This talk is based on a joint work with Rei Inoue and Tsukasa Ishibashi.

--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

みなさま，お誘い合わせの上ご参加ください．

——

（午後４時から午後４時３０分まではティータイム）

Discrete integrable equations can be considered in two, three or
N-dimensions, as equations fitted together in a self-consistent way on a
square, a cube or an N-dimensional cube. We show to find their symmetry
reductions (and other properties) through a geometric perspective.

みなさま

http://www.kurims.kyoto-u.ac.jp/~arakawa/

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Date: Oct 19 (Fri), 16:30--18:00, 2018
Room: RIMS 402
Speaker: Kazuya Kawasetsu (Melbourne)
Title: Modular linear differential equations of fourth order and minimal
W-algebras
Abstract:
Modular linear differential equations are differential equations invariant
under modular transformations. They play important roles in the study of
2D conformal field theory, vertex operator algebras and modular forms.
For example, characters of lisse (C_2-cofinite) vertex algebras and more
generally, those of quasi-lisse vertex algebras, satisfy modular linear
differential equations. Moreover, they have also used in the attempt to
classify lisse vertex algebras from their characters. In this talk, we
study a certain family of modular linear differential equations of fourth
order and discuss which vertex operator algebras satisfy the differential
equations.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

※※当メールを重複して受け取られた場合はご容赦ください※※

また、第一線でご活躍中の研究者の方々を招待講演者に迎え、ご自身の研究について

(1) 一般講演：自分の研究について、専門外の参加者にもわかりやすいように

(2) ショートセッション：自分が興味をもっていることや、勉強・研究している
ことについて発表していただきます (20分程度)

また、遠方から参加される方向けに、宿泊場所を用意することを予定しています。

‭https://www.math.kyoto-u.ac.jp/insei/?MATHSCI%20FRESHMAN%20SEMINAR%202019

( 受付期間： 2018年10月01日 (月) – 10月31日 (水) )

また懇親会も予定しておりますので、交流や研究内容に関する議論の場として
お役立てください。多くの方々の参加をお待ちしています。

-----------------------------------------------------------------------

ウェブサイト: https://www.math.kyoto-u.ac.jp/insei/?MATHSCI%20FRESHMAN%20SEMINAR%202019

お問い合わせ先: mathsci_freshman あっと math.kyoto-u.ac.jp
----------------------------------------------------------------------

よろしくお願いいたします。

---------------------------------------------------------------------

タイトル: 2重次数付きGinzburg Calabi-Yau dg代数とルート系のq-変形, そして
その導来圏上のq-安定性条件の空間について

アブストラクト: この講演では, まずはquiverに対するGinzburg Calabi-Yau dg代数の

の球面捻り関手がHecke環を通してこのルート系のq-変形に作用していることについて

C^*-同変層の導来圏を記述していることについて説明し, 次数付きpreprojective代数との

という予想(A型の時は定理)について述べる.

を開催いたします。皆様のご参加をお待ちいたしております。

この情報はウェブページ
でも公開しています。複数の ML に投稿しておりますこと、ご容赦ください。

（12/26 は1号棟キャンパス地下ホール、12/27 は3号棟3304教室）

（会場の都合でアルコール飲料の提供はありません。）

ご出席いただける方は、2018年12月10日（月）までに、

までご連絡をお願いします。折り返し受領メールをさし上げます。

アドレスまでご連絡下さい。

12月26日（水）

13:00-14:00 落合啓之（九州大学）：

14:15-15:15 廣惠一希（城西大学）：

15:30-16:30 原岡喜重（熊本大学）：
Katz 理論と不確定型多変数完全積分可能系

17:00-18:00 大島利雄（城西大学）：

12月27日（木）

10:00-11:00 松原宰栄（神戸大学）：

11:15-12:15 織田寛（拓殖大学）：

13:30-14:30 関口次郎（東京農工大学）：

14:45-15:45 小林俊行（東京大学）：
TBA

======================================================

Josai University
Kazuki Hiroe

and Integrable Systems

https://indico.ipmu.jp/event/168/

にウェブサイトがありますので、参加される方は、registrationをしてください。

Kavli IPMU 中島 啓

みなさま

------------------------------

Title: Lattice Lie Algebras of Witt type and their Representations
（Witt 型 の Lattice Lie 環とその表現）
Abstract:
Lattice Lie 環というのは、$\mathbb{Z}^N$-graded ($N>1$ は整数)-gradedな Lie 環
であって, 各 graded subspace の次元が 1次元のものを言う。

1. Lattice Lie 環の分類について、
2. 特に Witt 代数を部分代数として含むような Lie 環について、その実現及び表現
について, 知られている結果を紹介する。

A Lattice Lie algebra is a Lie algebra graded over $\mathbb{Z}^N$ for
some integer $N>1$ each of which graded component is 1-dimensional.
In this talk,
1. classification of Lattice Lie algebras, and
2. in particular, for those contaning a graded subalgebra isomrphic to
the Witt algebra, their realization and representations,
will be explained.

あらためて関連する全資料を添付します。

よろしくお願いします。

が任にあたる旨を数学会に報告します。

よろしくお願いします。

-------------------

２４日開催の評議員会で日本数学会奨励研究生制度立上げの通知がありました。
10分科会＋特別セッションから各1名学位取得後3年以内の定職についていない若手向けに
1年間30万円の研究費を支給するというものです。

この為の選考委員として各分科会より正副2名の委員の選出が要請されました。

と考えています。

これについてご意見のある方は、至急ご連絡頂きたく思います。

よろしくお願いします。

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/ Hitoshi Konno
_/ Dept. of Mathematics, Tokyo University of Marine Science and
_/ Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/ TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

みなさま

http://www.kurims.kyoto-u.ac.jp/~arakawa/

Dear Friends and Colleagues,

This is a follow-up email to the email I sent several weeks ago, as our plan
for the graduate workshop titled "Chiral Algebras for the 21st Century"
is getting firmed up.

It will happen on April 15-19, 2019, at UC Davis. The workshop will be led
by expert mentors Christopher Beem (Oxford), Thomas Creutzig (Alberta), and
Pavel Putrov (ICTP); begining with explaining 2-dimensional chiral algebras
(also known as vertex algebras or factorization algebras) in a physically
meaningful and mathematically precise way, we aim to provide a pedagogical
introduction to various topics on chiral algebras, culminating with
discussing three exciting recent developments in this area of physical
mathematics by the end of the week, namely,
1) Chiral algebras of Class S
2) Chiral algebras in 4d N=4 super-Yang-Mills, and relation to Geometric
Langlands
3) Chiral algebras VOA[M4] associated to 4-manifolds

The application form is now open, with January 31st deadline. There will be
support for local accommodation.

For more details and application, please check out our webpage at
http://qmap.ucdavis.edu/events/chiral21/

Please forward this to your friends, colleagues, and students who may be
interested. If you have any questions, please let us know.

Best,
Tudor and Phil

============================================================================
SEMINAR INFORMATION
============================================================================

solvable models in theoretical physics and special function theory in
mathematics.
In all these examples Calogero-Moser-Sutherland type systems play a
central role.
----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

--------------

タイトル: Loop structure on equivariant $K$-theory of semi-infinite flag
manifolds

アブストラクト: 半無限旗多様体は旗多様体のループ空間の代数的類似物であり、
ループの種類に応じて複数のバージョンがある。この講演ではまずループとして

から半無限旗多様体の同変$K$-群と呼ぶべき対象が定義できることを説明する。
その後ループとして多項式ループを取った場合を介して入谷-Milanov-Tonitaの

(小)量子$K$-群(の局所化)が自然に同型であることを説明する。

$K$群はアフィングラスマン多様体と呼ばれるコンパクト群のループ空間の代数版
の同変$K$-群の局所化とも(自然な類、作用を保つ形でほぼ)同型であることなど
を説明する。

この講演の内容は主として[arXiv:1702.02408 (joint with 内藤/佐垣)]、
[arXiv:1805.01718]、および準備中の論文にもとずく。
-------------

この度，下記の要領でセミナーを開催する運びとなりましたので，

https://www.xmath.ous.ac.jp/~shibata/conference/handayama_seminar.html
（大学へのアクセス方法などは上記HPから辿れます．）

＝＝＝＝＝

の持ち上げ問題を可換微分次数付き (DG) 代数上の微分次数付き (DG) 加群へ拡張
した問題の研究を紹介する。具体的には，「DG 代数とその 1変数 divided power DG

あるか?」を考えた。この問題を解く鍵となったのは，Tateにより導入された作用素
からヒントを得て定義した$j$-作用素である。$j$-作用素を用いて，持ち上げの

＝＝＝＝＝

Taiki SHIBATA
Department of Applied Mathematics
Okayama University of Science
Ridai-cho 1-1, Okayama 700-0005
JAPAN

タイトル: 超幾何函数 ー 和公式と変換公式の観点から

q超幾何函数と楕円超幾何函数についての最近の研究の一端を紹介する．

10/29 (月) 14:45 -- 16:15, 16:30 --
10/30 (火) 16:30 --
10/31 (水) 16:30 --
11/01 (木) 16:30 --
11/02 (金) 16:30 --

なお，本メールは複数のMLに同時に投稿しておりますこと，ご容赦ください．

-----------------------------------------------------------------------------

の公募を開始しました。詳細は以下のページをご覧ください。
http://www.mod.go.jp/nda/

ご関心のある方におかれましては、よろしくお願い申し上げます。

ご注意ください。

-----------------------------------------------------------------------------

みなさま

------------------------------

タイトル：Lattice Lie Algebras of Witt type and their Representations
(Witt 型 の Lattice Lie 環とその表現)

Abstract: A Lattice Lie algebra is a Lie algebra graded over $\mathbb{Z}^N$
for some integer $N>1$ each of which graded component is 1-dimensional.
In this talk,  1. classification of Lattice Lie algebras, and 2. in particular,
for those contaning a graded subalgebra isomrphic to the Witt algebra, their
realization and representations, will be explained.

どうぞよろしくお願い致します．

----------------------------------------------
〒671-2201

----------------------------------------------
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

どうぞ宜しくお願い申し上げます。

----------------------------------------------------------------------

おります。関係各位にご周知いただくと共に、適任者をご存知の場合は応募を
お勧めくださいますようお願い申し上げます。

をご覧ください。

From: iritani あっと math.kyoto-u

10-14 Dec 2018 at Kyoto

2018年12月10日(月)から14日(金)の間，京都大学数学教室にて

を開催いたします．

https://www.math.kyoto-u.ac.jp/~iritani/mirrorsymmetry2018/workshop2018

Cheol-Hyun Cho
Andrew Harder
Akishi Ikeda
Alexander Kasprzyk
Yota Shamoto
Maxim Smirnov
Renato Vianna

ご所属(大学院生の方は指導教員の名前も)とともに高橋篤史さん
(takahashiあっとmath.sci.osaka-u.ac.jp)までご連絡ください．

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

(C502, 5th floor, West No.1 Building, Ito Campus, Kyushu University)

(1)
Speaker: David Brander (Technical University of Denmark)
Title: Designing with elastic curves

Abstract: Euler's elastica are natural curves that appeared in design
before the introduction of computers, because these curves are the natural
shape for the wooden splines that were used in drafting. Although they
have natural aesthetic properties, they were abandoned when computers
were introduced because polynomial splines are much easier to deal with
mathematically. Motivated by new fabrication processes, we have studied
the practical problem of designing with elastic curves and splines on a
computer. We show in [1] that the problems of non-uniqueness and
instability, inherent in the nonlinear mathematics of elastic splines,
can be solved by introducing a suitable proxy curve to represent the
elastica. In this talk, I will describe this work, as well as some
remaining issues.

[1] Bézier curves that are close to elastica.
D. Brander, J.A. Bærentzen, A. Fisker and J. Gravesen,
Computer-Aided Design, 104, (2018), 36--44.

[2] Approximation by planar elastic curves.
D. Brander, J. Gravesen and T. Nørbjerg.

(2)
Speaker: Sebastián Graiff-Zurita (Graduate School of Mathematics, Kyushu
University）
Title: Discrete Euler’s elastica – characterization and application.

Abstract: After characterizing the discrete Euler’s elastica proposed
by Sogo (“Variational discretization of Euler’s Elastica problem”,
2006), we consider the problem of approximating a given discrete plane
curve by an appropriate discrete Euler’s elastica, according to a
suitable criteria. We have decided to do the approximation process via
a L2-distance minimization, because other approaches presented
numerical instabilities. The optimization problem was solved via a
gradient-driven optimization method (IPOPT). This optimization problem
is non-convex and the result strongly depends on the initial
guess. So, we have decided to discretize the algorithm provided by
Brander et al. (“Approximation by planar elastic curves”, 2016),
which gives an initial guess to the IPOPT method.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

２４日開催の評議員会で日本数学会奨励研究生制度立上げの通知がありました。
10分科会＋特別セッションから各1名学位取得後3年以内の定職についていない若手向けに
1年間30万円の研究費を支給するというものです。第１回の公募が始まるのは11月頃で、

この為の選考委員として各分科会より正副2名の委員の選出が要請されました。

と考えています。

これについてご意見のある方は、至急ご連絡頂きたく思います。

よろしくお願いします。

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/ Hitoshi Konno
_/ Dept. of Mathematics, Tokyo University of Marine Science and
_/ Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/ TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

させていただきます．どうぞ宜しくお願いいたします．

す。

そしてFlaschka変数によるToda latticeの運動方程式などは、相似変換に対して不変であ
る。これらの非線形ODEに対してKowalevski Exponents（略称 KE、別名 Kovalevskaya
Exponents）という量が定義される。KEは解の特異点近傍の展開に登場する自然な指数で
あり、系の持つ第一積分のウエイト付き次数と密接に関係する。Ziglinの定理を経由して、

の研究集会で耳にする機会があったので、名付け親としてその生い立ちとその後をまとめ
てみたい。

どうぞよろしくお願いいたします。

セミナー情報ページ
https://www.josai.ac.jp/education/gra_science/mathematics_major/workshop_seminar_lecture/seminar/seminar.html

w件名: [MugenML 921] MS seminar at Kavli IPMU -- Olivier Schiffmann -- Oct 18, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU.

Speaker: Olivier Schiffmann (Universite de Paris-Sud Paris-Saclay)
Date: Thu, Oct 18, 2018, 15:30 - 17:00
Place: Seminar Room B

Title: Cohomological Hall algebras associated to Riemann surfaces

Abstract: We will describe two families of algebras naturally associated to
the moduli spaces of vector bundles and Higgs bundles on a (compact) Riemann
surface respectively. We will state various results and conjectures regarding
their structure (generation, isomorphism with some known quantum groups) and
their representation theory (action on some other moduli spaces of vector
bundles on Riemann surfaces, etc.). This is joint work with F. Sala and
E. Vasserot.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

Mugen ML の皆様、

１０月１日（月）に、下記のようなセミナーを

どうぞよろしくお願い申し上げます。

〒610-0321 京都府京田辺市多々羅都谷1-3
(tel) 0774-65-6653
(fax) 0774-65-6801
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

"Seminar on Singular Perturbations"

Date : 平成30年10月1日（月）15:30 -- 17:00
Place : 京都大学数理解析研究所206号室

Speaker : Dr. Gergő Nemes (Kindai Univ., JSPS Postdoctral Fellow)
Title : Recent Developments in Integral Asymptotics

Abstract :
The talk consists of three main parts. In the first part, I will show
how the remainder terms of asymptotic expansions for integrals with
saddles can be estimated in a realistic manner using resurgence and
the basic terminants introduced originally by R. B. Dingle. Several
examples will be given. The second part is about inverse factorial
expansions arising from Mellin transforms of asymptotic expansions.
Again, the focus is on bounding the remainder terms. The third, and
final, part discusses a generalization of Laplace's method and its
applications to special functions with transition regions.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

メルボルン大学での講師職の公募案内を転送します．

---------- Forwarded message ---------
From: Jan De Gier
Date: 2018年9月20日(木) 15:08
Subject: Continuing position in mathematical physics in Melbourne
To:

Dear colleagues,

I would like to make you aware of the following position that we are

Best,
Jan

https://careers.pageuppeople.com/422/ci/en/job/897238/lecturer-in-mathematical-physics

The School of Mathematics and Statistics is seeking to expand and
diversify its expertise in mathematical physics. The School has had
a long history of a strong research program in mathematical physics
including mathematical statistical mechanics, integrable models,
random matrix theory, conformal field theory and physical
combinatorics. The School is looking to strengthen its expertise in
areas related but not limited to non-perturbative quantum field
theory, quantum symmetries, mathematical aspects of string theory or
strongly correlated quantum systems.

--
Professor Jan de Gier
Head, School of Mathematics and Statistics
Director MATRIX
The University of Melbourne
VIC 3010
+(61) 3 834 47022

Dear All,

Let me correct that the seminar is in fact take place on October 3rd instead
of 4th.

Thanks,

Sincerely Yours,

——————
Dete: October 3rd (Wed) 10:30–12:00
Place: Room 108 3rd building, Department of Mathematics
Speaker: Vasily Kryov
Title: Drinfeld-Gaitsgory interpolation Grassmannian and geometric Satake
equivalence

...

Dear All,

We will have the following seminar. Please note the date, place, and time are
not as usual.

Thanks,

Sincerely Yours,

——————
Dete: October 4th 10:30–12:00
Place: Room 108 3rd building, Department of Mathematics
Speaker: Vasily Kryov
Title: Drinfeld-Gaitsgory interpolation Grassmannian and geometric Satake
equivalence

Abstract: This talk is a review of the paper arxiv.org/abs/1805.07721. Let G
be a reductive complex algebraic group. Recall that a geometric Satake
isomorphism is an equivalence between the category of G(O)-equivariant perverse
sheaves on the affine Grassmannian for G and the category of finite dimensional
representations of the Langlands dual group Gˇ. They are equivalent as
Tannakian categories, the fiber functor sends a perverse sheaf to its global
cohomology. It follows from the above that for any perverse sheaf P there
exists an action of the Lie algebra of Gˇ on the global cohomology of P.

We will explain how to construct this action explicitly. To do so, we will
describe a geometric construction of the universal enveloping algebra of the
positive nilpotent subalgebra of the Langlands dual Lie algebra U(nˇ). Using
this construction, we will provide the desired action. It will be obtained
via a cospecialization morphism for a certain one-parametric deformation of
the affine Grassmannian of G.

If time permits, we will discuss some possible generalizations of our
construction of the action, in particular, we will discuss the relation of the
deformation mentioned above with the Drinfeld-Gaitsgory deformation considered
in their paper on Braden’s theorem.

クロスポストご容赦ください．

------------------------------------

(ENGLISH)

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

I will give an overview of an explicit correspondence that exists between two
different types of integrable equations; 1) the quantum Yang-Baxter equation
in its star-triangle relation (STR) form, and 2) the classical 3D-consistent
aspect of this correspondence is that the equation of the critical point of
a STR is equivalent to an ABS quad equation. The STR's considered here are
in fact equivalent to hypergeometric integral transformation formulas. For
example, a STR for $H1_{(\varepsilon=0)}$ corresponds to the Euler Beta
function, a STR for $Q1_{(\delta=0)}$ corresponds to the $n=1$ Selberg
integral, and STR's for $H2_{\varepsilon=0,1}$, $H1_{(\varepsilon=1)}$,
correspond to different hypergeometric integral formulas of Barnes. I will
discuss some of these examples and some directions for future research.

------------------------------------

皆様

公募の期日が近くなりましたので再度お知らせいたします。
どうぞよろしくお願い致します。

千葉大学理学研究院
井上　玲

-----------------------------------
このたび千葉大学大学院理学研究院では、下記URLにある要領で教員の公募を

------------------------------------

そしてFlaschka変数によるToda latticeの運動方程式などは、相似変換に対して不変で
ある。これらの非線形ODEに対してKowalevski Exponents（略称 KE、別名 Kovalevskaya
Exponents）という量が定義される。KEは解の特異点近傍の展開に登場する自然な指数で
あり、系の持つ第一積分のウエイト付き次数と密接に関係する。Ziglinの定理を経由して、

の研究集会で耳にする機会があったので、名付け親としてその生い立ちとその後をまとめ
てみたい。

どうぞよろしくお願いいたします。

セミナー情報ページ
https://www.josai.ac.jp/education/gra_science/mathematics_major/workshop_seminar_lecture/seminar/seminar.html

わない）の公募を計画しています。詳細は未定ですが、決まり次第（9月末以降の予定）

します。また、本メーリングリストでもあらためてお知らせいたします。
ご関心のある方におかれましては、よろしくお願い申し上げます。

このメールは複数のメーリングリストに投稿されています。

August 12-16, 2019)

みなさま

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Representation Theory and Integrable Systems
(ETH Zurich, August 12-16, 2019).

The conference website is now available at:
http://rtis2019.math.iupui.edu/

If you know some people interested in attending the conference (especially
young mathematicians), please, encourage them to register at the website.
We plan to have some short talks (22 minutes) in addition to 1 hour long
invited lectures, and we may have some funds to contribute to travel and/or
lodging of the participants.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Date: Oct. 5 (Fri), 16:30--18:00, 2018
Room: RIMS 402
Speaker: Yuri Billig (Carleton)
Title: Representations of Lie algebras of vector fields on affine algebraic
varieties.
Abstract: Very little has been known about representation theory of Lie
algebras of polynomial vector fields on affine algebraic varieties beyond
the cases of affine space and a torus. We study a category of
representations of the Lie algebras of vector fields on a smooth algebraic
variety X that admit a compatible action of the algebra of polynomial
functions on X. We construct simple modules in this category and state a
conjecture on the general structure of such modules.
This is a joint work with Slava Futorny and Jonathan Nilsson.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

http://www.kurims.kyoto-u.ac.jp/~arakawa/

の表現のモジュライ空間としての記述を与え、その性質を調べた。さらに、弓箭多様体の
コホモロジー群はA型のアファイン・リー代数の表現論と関係していることが分かっている。
(論文執筆中) この講義では、これら弓箭多様体に関する話題を解説する。

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU.

Speaker: Yalong Cao (Oxford U)
Date: Thu, Sep 20, 2018, 15:30 - 17:00
Place: Seminar Room B

Title: Zero Dimensional Donaldson-Thomas Invariants of Calabi-Yau 4-folds

Abstract: We study Hilbert schemes of points on a smooth projective Calabi
-Yau 4-fold X and define DT4 invariants by integrating the Euler class
of a tautological vector bundle against the virtual class. We conjecture a
formula for their generating series, which we prove in certain cases when
L corresponds to a smooth divisor on X. A parallel equivariant conjecture
for toric Calabi-Yau 4-folds is proposed. This conjecture is proved for
smooth toric divisors and verified for more general toric divisors in many
examples. Combining the equivariant conjecture with a vertex calculation,
we find explicit positive rational weights, which can be assigned to solid
partitions. The weighted generating function of solid partitions is given
by exp(M(q)-1), where M(q) denotes the MacMahon function. This is joint work
with Martijn Kool.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

リマインダーをお送りします．

kyoto-u.ac.jp)までご連絡ください．

2018/08/21 17:06、Shuhei Kamioka のメール: ------------------------------

セミナーの案内をお送りいたします．
RIMS研究集会の翌日に京都で開催しますので，ぜひご参加ください．

--

プログラム：
14:00-15:30

16:00-17:30

Immanantとその組合せ論

18:00-19:00
フリーディスカッション

なおセミナー終了後に講演者を交えて懇親会を開く予定です。

までご連絡ください。

クロスポストご容赦ください．

------------------------------------

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

modified KdV equationの離散版であるlattice modified KdV equationなどがある．また，
ABS方程式はその構成方法からラックス形式やベックルンド変換などの可積分な性質を持
ち，さらに，相似簡約による離散および微分のパンルヴェ方程式への簡約があることも知
そのConsistencyにより定義される偏差分方程式と離散パンルヴェ方程式の関係について

------------------------------------

ENS Paris のpostdocの情報をもう１件転送します。

-------- Forwarded Message --------
Subject:
[info.statphys] Philippe Meyer Postdoc Positions at ENS-Paris
Date:
Thu, 30 Aug 2018 15:45:07 +0200
From:
Denis BERNARD

Dear colleagues,

Please find here the announcement for the Philippe Meyer postdoc positions in
theoretical physics at the Ecole Normale Superieure starting in the fall 2019.
Please distribute it to potential candidates.

With my best regards
Denis Bernard

————————————
LPT-ENS, Paris
https://www.phys.ens.fr/~dbernard
————————————

Dear colleagues,

Please find here the announcement for the Philippe Meyer postdoc positions
in theoretical physics at the Ecole Normale Superieure starting in the fall
2019. Please distribute it to potential candidates.

With my best regards
Denis Bernard

attached pdf file

————————————
LPT-ENS, Paris
https://www.phys.ens.fr/~dbernard
————————————

ENS Paris のpostdocの情報を転送します。

-------- Forwarded Message --------
Subject:
[info.statphys] ICFP Junior Research Chair programme at ENS
Date:
Thu, 30 Aug 2018 15:47:54 +0200
From:
Denis BERNARD

Dear colleagues,

Please find below the announcement for the Junior Research Chairs at the
PhysicsDepartment of the Ecole Normale Superieure starting in the fall 2019.
Please distribute it to potential candidates.

With my best regards
Denis Bernard
————————————
LPT-ENS, Paris
https://www.phys.ens.fr/~dbernard
————————————

-----------------------------------------------------------------------------
Junior Research Chairs LabEx ENS ICFP Department of Physics, ENS (Ecole
normale supérieure), Paris
Closing date: October 31, 2018
Expected interview dates: December 5-6-7, 2018
The Department of Physics at ENS Paris invites applications for three JRC
(Junior Research Chairs) at postdoctoral level. Appointments will be for
two years with a possible one year extension. The Department aims at
recruiting outstanding candidates with international experience. Research
activities can be experimental and/or theoretical.

This year, the Department aims at hiring a Junior Research Chair in
Statistical Physics who will actively work with the group of G. Biroli
(research topic: glassy, activated and complex dynamics: from physics to
machine learning).

For the two other positions, the program actively encourages experimental
projects through a reserved budget. Research themes should correspond to
one of the following ones:
- Quantum physics: from atoms to condensed matter
- Biophysics: from the cell to the organism
- Non-linear physics: from the laboratory to the cosmos
- Statistical and theoretical physics

Some participation in teaching within ENS-ICFP (International Centre for
Fundamental Physics and its Interfaces) Master program is part of the
duties
http://www.phys.ens.fr/spip.php?rubrique284&;;lang=en

In addition to an internationally competitive salary, ENS-ICFP provides
an attractive travel allowance and research funds (150,000 euros for
experimentalists). The successful candidates are fully integrated into
the Department of Physics and its constituent research laboratories.
For more detailed information regarding the research undertaken at the
http://www.phys.ens.fr/spip.php?rubrique258&;lang=en

The positions are funded by the ENS-ICFP grant obtained through the French
National Excellence initiative.

Applications must be exclusively submitted through AcademicJobsOnline
- A cover letter
- A complete CV including a list of publications
- A research project taking into account possible interactions with research
groups/faculty within the Department of Physics at Ecole normale supérieure
(no more than 4 pages of A4).
- Three letters of recommendation from senior scientists, to be uploaded on

Candidates are encouraged to make early contact with faculty to discuss
their research proposal and should refer to these contacts in their 4-page
research statement. If help is required to identify appropriate research
groups/faculty, candidates should contact the Manager, Stéphanie Troufflard,
at stephanie.troufflard[at]phys.ens.fr

Short-listed candidates will be interviewed (videoconferences) in early
December 2018. Only applications received by October 31, 2018 will be
considered. The hiring committee will make offers late in 2018.

Positions will normally start in September 2019, but this is negotiable.
-----------------------------------------------------------------------------

University of Glasgow のpostdocの情報を転送します。

-------- Forwarded Message --------
Subject:
Temporary postions at Glasgow
Date:
Mon, 3 Sep 2018 14:53:19 +0000
From:
Christian Korff
To:
Christian Korff

Dear colleagues,
There are two temporary 1-year positions open at the University of Glasgow.
These might be suitable for recent PhDs or postdocs who seek intermittent
funding. Details can be found here
https://www.jobs.ac.uk/job/BMK305/lecturer-in-mathematics-2-positions
I would be grateful if you could pass this on to potential candidates.

Many thanks,
Christian Korff

________________
Dr Christian Korff
School of Mathematics & Statistics, University of Glasgow
http://www.maths.gla.ac.uk/~ck/
Direct line: +44 (0)141 330 6198
Fax: +44 (0)141 330 4111
Mathematics & Statistics Building
University of Glasgow
Glasgow G12 8QQ
The University of Glasgow, charity number SC004401

Victoria Hoskins (Freie U Berlin) -- Sep 18, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU:

Speaker: Victoria Hoskins (Freie Universität Berlin)
Date: Tue, Sep 18, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: A formula for the motive of the moduli stack of vector bundles on
a curve

Abstract: Following Grothendieck's vision that a motive of an algebraic
variety should capture many of its cohomological invariants, Voevodsky
introduced a triangulated category of motives which partially realises
this idea. After describing some properties of this category, I will explain
how to define the motive of certain algebraic stacks. I will then state
and sketch a proof for the motive of the moduli stack of vector bundles
on a smooth projective curve; this formula is compatible with classical
computations of invariants of this stack due to Harder, Atiyah--Bott and
Behrend--Dhillon. The proof involves rigidifying this stack using Quot and
Flag-Quot schemes parametrising Hecke modifications as well as a motivic
version of an argument of Laumon and Heinloth on the relative cohomology
of small maps. This is joint work with Simon Pepin Lehalleur.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

-- Alexander Alexandrov and Ugo Bruzzo -- Sep 25, 2018

Dear all,

I would like to announce the following two Mathematics and String theory seminars
at Kavli IPMU

1) Speaker: Alexander Alexandrov (IBS Korea)
Date: Tue, Sep 25, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: Open intersection numbers, matrix model, and W-constraints

Abstract: From the seminal papers of Witten and Kontsevich we know that the
intersection theory on the moduli spaces of complex curves is described by a
tau-function of the KdV integrable hierarchy. Moreover, this tau-function is
given by a matrix integral and satisfies the Virasoro constraints. Recently,
an open version of this intersection theory was introduced. In my talk I will
show that the open version can be described very similar to the closed one,
in particular it is given by a tau-function of the integrable hierarchy.
Moreover, it's W-constraints can be naturally described in terms of two free
bosonic fields.

2) Speaker: Ugo Bruzzo    (SISSA)
Date: Tue, Sep 25, 2018, 15:30 - 17:00
Place: Seminar Room B

Title: The Noether-Lefschetz problem for normal threefolds

Abstract: The classical Noether-Lefschetz theorem states that the very general
surface in P3 has Picard number 1. The locus of surfaces with a larger
Picard number has a complicated geometry; results obtained in the late 80s
characterized its components of small codimension, and proved that it is
dense in the space of all surfaces. In this talk I will show how to extend
some of these results to surfaces in normal 3-folds. Work in collaboration
with A. Grassi and (partly) with A. F. Lopez.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

みなさま

------------------------------

Title: Generalized quantum groups, quantum superalgebras and Coxeter groupoids
（一般化された量子群、量子超代数とコクセター亜群）
Abstract:
Coxeter introduced Coxeter groups in 1934, and he classified the finite
Coxeter groups in 1935. Those are classified into $A_n$, $B_n = C_n$, $D_n$,
$F_4$, $E_6$, $E_7$, $E_8$, $G_2$, $I_n$, $H_3$ and $H_4$. Coxeter groups
appear in many areas of Algebra and Geometry. One of the areas is the
representation theory of Lie algebras. Perhaps from 1970's, many researchers
have considered that they need a notion of Coxeter groupoids' which can be
applied for study of the representation theory of Lie superalgebras. Recently,
Coxeter groupoids became necessary for study of Hopfalgebras including
the generalized quantum groups'. Before achieving (1) below, virtually
using Coxeter groupoids, Hiroyuki Yamane decided the defining relations of
finite and affine Lie superalgebras of type $A$-$G$ and their quantum
superalgebras (1991, 1994, 1994, 1999, 2001). With collaborators,
Hiroyuki Yamane achieved the following results.
(1) Axiomatic definition, Defining relations and Matsumoto-type theorem of
Coxeter groupoids (2008).
(2) Shapovalov determinants of the generalized quantum groups (2010).
(3) Classification of the finite dimensional irreducible representations of
the generalized quantum groups (2015).
(4) Universal $R$-matrices of the generalized quantum groups (2015).
(5) Harish-Chandra type theorem of the center of the generalized quantum
groups (2018).
(6) Bruhat order of the Coxeter groupoids (2018).
(7) Lusztig ${\mathbb{A}}$-form of the multi-parameter quantum groups (2018).

In the talk, in addition to these topics, I will also explain the contents
of the paper:
I.~Heckenberger, F. Spill, A. Torrielli, H. Yamane, Drinfeld second
realization of the quantum affine superalgebras of $D^{(1)}(2,1;x)$ via the
Weyl groupoid. RIMS Kokyuroku Bessatsu B8 (2008), 171-216.

※ 重複して受け取られた場合はご容赦ください．

---------------------------
RIMS共同研究（公開型）

---------------------------

また，以下のホームページからアブストラクト付きのプログラムもダウンロードできます．

http://www.math.tsukuba.ac.jp/~sagaki/RIMS201810/RIMS201810.html

それでは，皆さま，奮ってご参加ください．どうぞよろしくお願いいたします．

どうぞよろしくお願いいたします．

●研究会の予算から旅費の補助をすることが可能です．
ご希望の方は岩尾(iwao あっと tokai.ac.jp)までお早めにご連絡ください．
（予算額に到達次第，締め切りとなりますことをご了承ください．）

------------------------------------------------------------------------
RIMS研究集会（公開型）「可積分系理論から見える数理構造とその応用」

------------------------------------------------------------------------

プログラム等，詳細は研究集会ホームページ
をご覧ください．

ML各位、

https://www.kyotoprize.org/registration/basic_sciences/

https://www.kyotoprize.org/registration/

セミナーの案内をお送りいたします．
RIMS研究集会の翌日に京都で開催しますので，ぜひご参加ください．

--

プログラム：
14:00-15:30

16:00-17:30

Immanantとその組合せ論

18:00-19:00
フリーディスカッション

なおセミナー終了後に講演者を交えて懇親会を開く予定です。

ご連絡ください。

----------------------

からきております．お手数ではございますが，各分科会および無限可積分系セッション
のメーリングリストに送信し，分科会各分科会および無限可積分系セッションの会員の

%%%%%%%%%%%%%%%%%%%%%%%%（ここから）%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

「国際数学連合（IMU）からのアンケート調査へのご協力の再度のお願い」

このことにつきましては、6月にもご依頼致しまして、

IMU Committee for Women in Mathematics (CWM) の会長 Marie-Francoise Roy教授より

7月8日時点では日本人数学者からの回答は213人となっておりますが、

アンケートは下記HPから日本語を含む7か国語で回答可能です。
http://statisticalresearchcenter.org/global18

------------------
Dear Colleagues,

Below is the message about the project.

You are invited to participate in the 2018 Global Survey of Mathematical,
Computing, and Natural Scientists.

You will find the survey at http://statisticalresearchcenter.org/global18

The survey is available in seven languages (English, French, Russian, Spanish,
Arabic, Chinese, and Japanese). Simply choose your language on the first page
of the survey.
The update info can be found at
https://gender-gap-in-science.org/2018/07/13/news-from-the-global-survey-of-scientists/

The survey is part of an interdisciplinary collaboration of eleven partners,
supported by the International Council for Science (ICSU), which aims to
better understand the problems mathematical, computing, and natural science
academics and practitioners are facing around the world. The partners are:
1. International Mathematical Union (IMU)
2. International Union of Pure and Applied Chemistry (IUPAC)
3. International Union for Pure and Applied Physics (IUPAP)
4. International Council for Industrial and Applied Mathematics (ICIAM)
5. International Astronomical Union (IAU)
6. United National Educational, Scientific and Cultural Organization (UNESCO)
7. International Union of Biological Sciences (IUBS)
8. Gender in Science, Innovation, Technology and Engineering (GenderInSITE)
9. International Union of History and Philosophy of Science and Technology
(IUHPST)
10. Organization for Women in Science for the Developing World (OWSD)
11. Association for Computing Machinery (ACM)

One of the specific tasks for the project is to collect data across the world
to inform policy makers from all countries, especially developing countries,
about reducing the gap between men and women in mathematical, computing, and
natural sciences.

The data are being collected by the non-profit Statistical Research Center
of the American Institute of Physics. Responses to this survey are voluntary,
and your individual information will be held in strict confidence. We are
aiming for thousands of respondents from every corner of the world!

We will also need your help to find more respondents (men and women), to
answer this survey. Please forward this e-mail to send it to anyone (both
men and women) who has studied or worked in mathematics, computing, natural
sciences, or the history and philosophy of science and technology. It is
only by hearing from as many people as possible that we can understand the
worldwide situation for people in these fields.

Thank you for your help with this important effort.

Sincerely,
Marie-Francoise Roy (IMU) and Mei-Hung Chiu (IUPAC)
Coordinators of the Gender Gap in Science project

Pedram Hekmati (U Auckland) -- Aug 28, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker:  Pedram Hekmati (U Auckland)
Date:  Tue, Aug 28, 2018, 13:15 - 14:45
Place:  Seminar Room A

Title: A quantum refinement of equivariant cohomology

Abstract: The Duflo homomorphism quantizes the Poisson algebra of symmetric
polynomials on a Lie algebra to the enveloping algebra, in such a way that
the restriction to the centers is a ring isomorphism. In this talk I will
first review the Duflo homomorphism and its relation to equivariant
cohomology. I will then introduce a refinement of equivariant cohomology
based on the universal affine vertex algebra and discuss some applications.
Interestingly this construction only works at the critical level, where
the vertex algebra acquires a non-trivial center.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

MLの皆様

せしております。若手向けにKashaev, Le両教授に２講演をお願いしました。以

*ご参加の皆様へ：wifi環境について東大数理棟内の強いセキュリティ用件によ
り、ご出張前にご所属がeduroam提携である場合、（モバイルを含め）使用でき
るようにしてご参加くださいますことを強くお勧め致します（こちらでの手続き
が不要になります）。

プログラム

８月２２日（水）

14:00–15:00 Christian Zickert (UMD)

Ptolemy varieties and Bloch invariants for higher dimensional manifolds

15:30–16:30 Hitoshi Murakami (Tohoku)

The volume conjecture for cable knots (A part of the talk is a joint
work
of A. Tran)

17:00–18:00 Stavros Garoufalidis (Gatech)

The volume conjecture for state integrals

８月２３日（木）

10:00–11:00, 11:30–12:30 Rinat Kashaev (Geneve)

The Volume conjecture for knots in arbitrary 3-manifolds

14:00–15:00 Sergei Gukov (Caltech)

"Zed-hat"

15:30–16:30 Jun Murakami (Waseda)

Volume conjecture for the logarithmic invariant

16:30–18:00 自由討論

８月２４日（金）

10:00–11:00, 11:30–12:30 Thang T.Q. Le (Gatech)

Title of talk 1: On growth of torsion homology of 3-manifolds

Title of talk 2: The skein algebra of surfaces and hyperbolic TQFT

14:00–15:00 Kazuhiro Hikami (Kyushu)

On Kauffman bracket skein algebra and DAHA

15:30–16:30 Jinseok Cho (Busan)

The optimistic limit of colored Jones polynomial

http://www.ms.u-tokyo.ac.jp/~bao/Volume_Conjecture.html

-------------------------------

FINAL ANNOUNCEMENT

of the workshop 「Volume Conjecture in Tokyo」

The program of the workshop above has been fully decided. For details,

http://www.ms.u-tokyo.ac.jp/~bao/Volume_Conjecture.html

WiFi: eduroam is available on Komaba campus.

We look forward to seeing many of you in the workshop.

Organizers:

Yuanyuan Bao (U-Tokyo), Noboru Ito (U-Tokyo), Yoshiyuki Yokota (Tokyo
Metropolitan)

（重複した情報を受け取られた方はご容赦頂けましたら幸いです．）

つきましては，関係する方々にお知らせ頂きますとともに

お願い申し上げます．

----------------------------------------------
〒671-2201

----------------------------------------------

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

おります。関係各位にご周知いただくと共に、適任者をご存知の場合は応募を
お勧めくださいますようお願い申し上げます。

記

数理科学II分野

をご覧ください。

兵庫県立大学大学院物質理学研究科

野村　祐司

どうぞよろしくお願い致します。

————————

tenure) 1名

Work responsibilities: The successful candidate will be required to teach
Program in the Faculty of Science and Engineering. In addition to teaching
responsibilities, the successful candidate will be required to undertake
administrative work and mentor Math major students.

justified cases (based on performance review).
Associate Professor: an initial period of three years, with the possibility
of an extension for a further two years based on performance review at the
end of the initial three-year period. The position may then be repeatedly
extended for periods of two years, up to a maximum of 10 years.

(1) Curriculum vitae.
(2) A list of research achievements.
(3) A teaching and research statement.
(4) Contact information of two persons who can be contacted in reference to
(5) Examples (maximum of three) of published research articles.

より詳しい情報は下記をご覧ください．
https://jrecin.jst.go.jp/seek/SeekJorDetail?fn=3&id=D118071804&ln_jor=1

皆様

以下の公募情報をお送りいたします。どうぞよろしくお願い致します。

千葉大学理学研究院
井上　玲

-----------------------------------
このたび千葉大学大学院理学研究院では、下記URLにある要領で教員の公募を

------------------------------------

（間際のご案内となってしまい、大変申し訳有りません。）

もしご興味がありましたら、どうかお気軽にお越し下さい。

http://www.ier.hit-u.ac.jp/Japanese/schedule/2018/08/post-309.html
をご覧下さい。

・会場は【東キャンパス・東１号館２階・1203教室】 です。
・JR 国立駅から大通りを南に歩いて左手側が【東キャンパス】です。

よろしくお願い申し上げます。

お問い合わせ先：　津田照久（一橋大・経済）

9月に開催予定のRIMS研究集会についてご案内申し上げます．

------------------------------------------------------------------------
RIMS研究集会（公開型）「可積分系理論から見える数理構造とその応用」

------------------------------------------------------------------------

プログラム等，詳細は研究集会ホームページ
をご覧ください．

●研究会の予算から旅費を補助することが可能です．
ご希望の方は岩尾(iwaoあっとtokai.ac.jp)までご連絡下さい．
（希望者多数の場合は大学院生，若手の方を優先させていただく場合があります．）

どうぞよろしくお願いいたします．

「微分方程式と表現論　 －大島利雄先生古希記念研究集会ー」

を2018年12月26日（水）～12月27日（木）の日程で

26日のプログラム終了後学内で祝賀会を行います。

=====================================

※ 重複して受け取られた場合はご容赦ください．

まだ講演枠（および旅費のサポート）に余裕があります．
お申し込みのほど，何卒よろしくお願いいたします．

※ 締め切りは 8/6 (Mon) です．

----

※ 重複して受け取られた場合はご容赦ください．

---------------------------
RIMS共同研究（公開型）

---------------------------

※ いまのところ，例年と同じように，「60分講演を15程度」と考えております．

※ 数理研からは旅費のための補助をいただいております．
**** 旅費の補助が必要な方はお知らせ下さい．****

それではどうぞよろしくお願いいたします．
--
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

を設け，それぞれの専門家による3時間から6時間の講演により基本的な事柄から

からの形状形成」・夏期学校2018

プログラム：次のHPに記載しております．
http://www.imi.kyushu-u.ac.jp/events/view/2318

Summer School 2018 in Fukuoka, Japan
"Geometric shape generation",
From September 10(Mon), 13:50 to 14(Fri), 18:00.
at Kyushu University, Ito Campus. West Zone 1, Buildings C and D.

English HP
http://www.imi.kyushu-u.ac.jp/eng/events/view/1409

Kenji Kajiwara (Kyushu Univ.): Introduction to the discrete integrable
systems based on the geometry of plane curves
Florian Rist (Technische Universitaet Wien, Austria): Computational design
Wayne Rossman (Kobe Univ.): Introduction to Lie sphere geometry and
applications to surface theory
Kentaro Saji (Kobe Univ.), Atsufumi Honda (Yokohama National Univ.):
Singularities of wave fronts and curvatures
Masashi Yasumoto (Osaka City Univ.): Discretization of linear Weingarten
surfaces from a viewpoint of integrable systems

なお，ご不明な点がございましたら小磯深幸（九大IMI）までお問い合わせください．
よろしくお願い致します．

ラスマン ウエイン（神戸大学）

Udo Hertrich-Jeromin （ウィーン工科大学，オーストリア）

Organizers:
Miyuki Koiso (Kyushu Univ.)
Kenji Kajiwara (Kyushu Univ.)
Wayne Rossman (Kobe Univ.)
Masaaki Umehara (Tokyo Institute of Tech.)
Kotaro Yamada (Tokyo Institute of Tech.)
Udo Hertrich-Jeromin (Technische Universitaet Wien, Austria)

みなさま、

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Speaker: Oleksandr Tsymbaliuk (Yale)
Date: Fri, Aug 17, 2018, 1630–18:00
Place: RIMS 402
Title: Coulomb branches, shifted quantum algebras and modified q-Toda systems.
Abstract: In the recent series of papers by Braverman-Finkelberg-Nakajima a
mathematical construction of the Coulomb branches of 3d N=4 quiver gauge
theories was proposed (the latter are supposed to be symplectic dual to the
corresponding well-understood Higgs branches). They can be also realized as
slices in the affine Grassmannian and therefore admit a multiplication.

In the current talk, we shall discuss the quantizations of these Coulomb
branches and their K-theoretic analogues, and the (conjectural) down-to-earth
realization of these quantizations via shifted Yangians and shifted quantum
affine algebras. Those admit a coproduct quantizing the aforementioned
multiplication of slices. In type A, they also act on equivariant
cohomology/K-theory of parabolic Laumon spaces.

As another interesting application, the shifted quantum affine algebras in the
simplest case of sl(2) give rise to a new family of 3^{n-2} q-Toda systems of
sl(n), generalizing the well-known one due to Etingof and Sevostyanov. If time
permits, we shall explain how to obtain 3^{rk(g)-1} modified q-Toda systems
for any simple Lie algebra g.

This talk is based on the joint works with M. Finkelberg and R. Gonin.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

11月12日-16日に福岡で開催予定の13th International Conference on Symmetries and
Integrability of Difference Equations (SIDE13)の発表申込み期限が7月31日となって
おります．

http://side13conference.net/

からお申込みをお願いします．申込みにはLaTeXのテンプレートを使って2ページ以内の

おりますが，こちらもお早めにお願い致します．また，上記ウェブページからブロックで

いるため，予約が次第にタイトになってきております．参加をお考えで，他の予約サイト
などから宿泊予約をされる場合，直ちに手配されることをお勧め致します．

---------- Forwarded message ----------
Date: Sat, 21 Jul 2018 20:42:17 +0200
From: Giuseppe Dito
Subject: Tenure track in mathematical physics

As a follow up to my message below, the position has been
published on Naturejobs.com

https://www.nature.com/naturejobs/science/jobs/649413-tenure-eligible-investigator-mathematical-physics

Best,
Giuseppe

---------- Forwarded message ----------
Date: Sat, 21 Jul 2018 12:59:15 +0200
From: Giuseppe Dito
Subject: Tenure track in mathematical physics

Dear Colleague,

We will have an opening in Dijon for a 3-year
tenure track in Mathematical Physics with good
financial conditions.

Please feel free to forward this mail and the
attachment
to any excellent young candidate that might be interested.
The candidate should have his/her PhD awarded in 2012 or after.

The call should be published soon on the website
specified in the attachment.

Best wishes,
Giuseppe

--
Institut de Mathmatiques de Bourgogne
UMR CNRS 5584
Universit de Bourgogne
B.P. 47870
21078 Dijon Cedex, France
URL: http://monge.u-bourgogne.fr/gdito

Managing Editor
/Letters in Mathematical Physics/
Impact Factor 2014: 1.939

============================================================================
SEMINAR INFORMATION
============================================================================

super-Jack polynomials

mathematically natural generalizations of the CMS models. Although the
deformed CMS models share many of the mathematical properties of the CMS
models, it proved more difficult to obtain a complete understanding of these
deformed models and their corresponding eigenfunctions. In the first part of
this seminar, I will present an overview of the different known deformed CMS
models and then mainly discuss the trigonometric deformed CMS model
(corresponding to A-type systems) and its exact eigenfunctions given in
terms of the super-Jack polynomials. I will then present some recent results
showing that the super-Jack polynomials are orthogonal with respect to a
positive semi-definite, degenerate Hermitian product, which naturally
generalizes Macdonald's inner product for the Jack polynomials, and give the
This seminar is based on joint work with M. Hallnas and E. Langmann.

----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

（このメールは複数のメーリングリストに投稿しております。重複してお受け取りの際は
ご容赦ください。）

タイトル: On twisted loop groups and twisted affine Kac-Moody groups
アブストラクト: 無限次元カッツ・ムーディ代数の中でもよく理解されているアフィン・
リー代数は，数学のみならず様々な分野に応用があり興味深い対象である．アフィン・
リー代数のうちでtwisted なクラスは，untwisted なクラスに比べて見かけがだいぶ異な
っている．しかしガロア・デサント理論の視点に立てば，twisted なものは適当なsplit
のある種の固定点として理解でき非常に明快である．本講演ではアフィン・リー代数から

つことをいい，同時に代数的ループ群とも深く関連していることを紹介する．これは

--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

みなさま

------------------------------

Title: Density of states and level statistics for 1d Schroedinger operators
Abstract:
We consider the 1d Schroedinger operator with random potential decaying of
order α.
The results include :
(1) the fluctuation of density of states with different behavior depending on α,
(2) the level statistics asymptotically obeys clock, Sineβ, and Poisson
processes for super-critical, critical, and sub-critical cases, respectively.
(3) if the time permits, we discuss some recent results on the eigenfunction
statistics.
Joint work with S. Kotani and T. K. Duy

みなさま

＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆＆
MLの皆様

2018年9月5日(水)〜9月7日(金)の日程で，東北大学においてレブナー方程式に関する

ております．本研究集会では「レブナー」というキーワードをもとにさまざまな分野の専

ながりを作ることができればと考えております．

9/6(木)の夜には懇親会を予定致しております．参加をご希望される方は8月上旬までに

=======================
International Workshop on Conformal Dynamics and Loewner Theory
http://cajpn.org/Loewner2018/

Mark Elin (ORT Braude College, Israel)
Yoshiki Fukusumi (Univ. Tokyo, Japan)
Pavel Gumenyuk (Univ. Stavanger, Norway)
Hidetaka Hamada (Kyushu Sangyo Univ., Japan)
Takahiro Hasebe (Hokkaido Univ., Japan)
Ikkei Hotta (Yamaguchi Univ., Japan)
Mihai Iancu (Babeș-Bolyai Univ., Romania)
Gabriela Kohr (Babeș-Bolyai Univ., Romania)
Mirela Kohr (Babeș-Bolyai Univ., Romania)
Shinji Koshida (Univ. Tokyo, Japan)
Takuya Murayama (Kyoto Univ., Japan)
David Shoikhet (Holon Inst. Tech., Israel)
Hiroshi Yanagihara (Yamaguchi Univ., Japan)

プログラム：
８月あたまに公開予定です

Ikkei Hotta
======================

※ 重複して受け取られた場合はご容赦ください．

---------------------------
RIMS共同研究（公開型）

---------------------------

※ いまのところ，例年と同じように，「60分講演を15程度」と考えております．

※ 数理研からは旅費のための補助をいただいております．
**** 旅費の補助が必要な方はお知らせ下さい．****

それではどうぞよろしくお願いいたします．
--
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

す。比較的長く時間をとって講師の方にゆっくりと研究内容を解説していただきます．専

し終いに崩れてしまう現象を指し、退化した極限形はパラメータ空間上の複素曲線族にお
ける特異ファイバーとして現れる。小平による楕円曲線の退化の分類に端を発するこの研

う。講演の前半はリーマン面の退化族に関する解説を、（トポロジーが中心になるものの）

べたい。

どうぞよろしくお願いいたします。

セミナー情報ページ
https://www.josai.ac.jp/education/gra_science/mathematics_major/workshop_seminar_lecture/seminar/seminar.html

Josai University
Kazuki Hiroe

みなさま

どうぞよろしくお願いいたします。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Date: July 16 (Mon), 10:30--12:00, 2018
Room: RIMS 402
Speaker: Arturo Pianzola
Title: A prescient SGA3: Applications of reductive group schemes to
infinite dimensional Lie theory.
Abstract:
Many interesting infinite dimensional Lie (super conformal) algebras can be
thought as being “finite dimensional” when viewed, not as algebras over the
given base field, but rather as algebras over their centroids (usually a
Laurent polynomial ring). From this point of view, the algebras in question
look like "twisted forms" of simpler objects which with one is familiar.
The quintessential example of this type of behaviour is given by the affine
Kac-Moody Lie algebras. Once the twisted form point of view is embraced,
the theory of torsors and reductive group schemes developed by Demazure and
Grothendieck [SGA3] arises naturally. The talk will explain these concepts
and connections.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

を開催いたします．

------

equations including nonlocal NLS equation and second harmonic generation equation.
The initial-boundary problem for second harmonic generation equation will be
discussed as well.

http://www.f.waseda.jp/kmaruno/isseminar.html

みなさま

------------------------------

Title: Density of states and level statistics for 1d Schroedinger operators
Abstract:
We consider the 1d Schroedinger operator with random potential decaying of order α.
The results include :
(1) the fluctuation of density of states with different behavior depending on α,
(2) the level statistics asymptotically obeys clock, Sineβ, and Poisson processes
for super-critical, critical, and sub-critical cases, respectively.
(3) if the time permits, we discuss some recent results on the eigenfunction
statistics.
Joint work with S. Kotani and T. K. Duy

お世話になっております。

2015年3月に京都大学数理解析研究所で開催された国際研究集会
「表現論、特殊関数、パンルヴェ方程式」
の講究録が、日本数学会からASPM76巻として出版されましたので、
ご案内申し上げます。

http://mathsoc.jp/publication/ASPM/index_j_.html
をご覧ください。

それでは、どうぞよろしくお願い致します。

メーリングリストの皆様、

セミナーのお知らせです。

アブストラクト：Delegated causality is introduced as a dual to interventional
causality.  It illuminates the causal role of dynamical systems at the
edge of chaos'', explicates evident cases of downward causation, and
relates emergent phenomena to Godel's incompleteness theorem. Apparently
rich implications can be noticed in evolutionary biology and Chinese
philosophy.  The perspective of delegated causality supports cognitive
interpretations of self-organization and evolution.  It suggest a
developmental direction for Artificial Intelligence and civilization.

======
なお、本日(6/28)のセミナーと同じ講演者(Vidunas 氏)です。

-- 3 Jul, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker: Konstantin Aleshkin (SISSA)
Date: Tue, Jul 03, 2018, 13:15 - 14:45
Place: Seminar Room A

Title:
Computation of flat structures with irrelevant (negatively weighted) directions

Abstract: In this talk, I will explain computations of certain flat structures
connected with Calabi-Yau manifolds. Their interesting feature is that these
structures can be computed exactly, even though they contain irrelevant
directions.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

のお知らせ

D-modules, quantum geometry and related topics''
についてご案内申し上げます.

Survey talks:
Dima Arinkin, University of Wisconsin (Madison WI)
Javier Fresan, Ecole polytechnique (Palaiseau)
Maxim Kontsevich, IHES (Bures sur Yvette)
Jacopo Stoppa, SISSA (Trieste)

Research talks:
Joseph Ayoub, University of Zurich (Zurich)
Roman Fedorov, University of Pittsburg (Pittsburgh, PA)
Hiroshi Iritani, Kyoto University (Kyoto)
Kohei Iwaki, Nagoya University (Nagoya)
Motohico Mulase, University of California, Davis (Davis, CA)
Hiraku Nakajima, Kavli IPMU, Tokyo University (Tokyo)
Carlos Simpson, CNRS (Nice)
Tomohide Terasoma, University of Tokyo (Tokyo)
Yukinobu Toda, IPMU (Tokyo)

また12月4日にポスターセッションと懇親会を予定しています.

https://indico.math.cnrs.fr/e/kyoto2018

10月1日
ポスターセッションへでの発表申し込み

11月18日

なお, この研究集会は, 科学研究費基盤研究S(17H06127)
「代数幾何と可積分系の融合
-理論の深化と数学・数理物理学における新展開 -」
および京都大学数理解析研究所の支援を受けています.

%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%

deautonomization approach

as an application of the singularity confinement techniques to deautonomized
versions of some autonomous maps, particularly the QRT-type maps, in the works
of B. Grammaticos, A. Ramani, and their collaborators. In this talk we’ll
consider the main ideas behind the geometric approach to deautonomization.
This approach allows systematic derivation of all discrete Painlevé equations
that can be obtained as deautonomizations of a given QTR maps, and it also
allows for the nice pedagogical introduction to the theory of discrete
Painlevé equations. We consider some concrete examples, including the famous
q-PVI equation of Jimbo-Sakai, and also show how one can construct examples
of constrained discrete Painlevé equations with special symmetry groups in
this framework. This is a joint project with Tomoyuki Takenawa (Tokyo) and
Stefan Carstea (Bucharest).

URL：http://www.gem.aoyama.ac.jp/seminar.html
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Nobutaka Nakazono
Department of Physics and Mathematics, Aoyama Gakuin University
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

2016年９月に開催された研究会「可積分系数理の現状と展望」
の講究録が近々刊行されます。

ご希望の方には RIMSから講究録をお送りいたしますので、下記の必要事項

【氏名、郵便番号、住所（都道府県名必要）、大学名、部局名】
（ご自宅への郵送を希望の方は、自宅郵便番号と住所）

を、津田　tudateruあっとecon.hit-u.ac.jp 宛にお知らせ下さい。
６月２５日（月）までにご返信頂けると幸いです。

ご参考迄に、研究集会の講演者は（敬称略）：

プログラムは
http://www.econ.hit-u.ac.jp/~tudateru/program2016.pdf
でした。

アクセスなどの詳細は web page をご覧ください：
http://sasuke.econ.hc.keio.ac.jp./~hep/hepTalk.html

なおセミナーは英語で行われる予定です．

%%%%%%%%%%%%%%%%%%%%%%%%%%%

Speaker: Dr. Yoshinori Honma (Meiji Gakuin Univ.)

Time: June 18 (Mon) 15:00 ＠ Room 221

Title: Local B-model Yukawa couplings from A-twisted correlators

Abstract: Using the exact formula about the A-twisted correlation functions
of two dimensional N = (2,2) gauged linear sigma model, we reconsidered the
computation of the B-model Yukawa couplings of the local toric Calabi-Yau
varieties. Our analysis is based on the exact result which has been evaluated
from the supersymmetric localization technique and a careful treatment of
its application. We provide a detailed description of a procedure to
investigate the local B-model Yukawa couplings and also test our prescription
by comparing the results with known expressions evaluated from the local
mirror symmetry approach. Especially, we find that the ambiguities of
classical intersection numbers of certain class of local toric Calabi-Yau
varieties discovered before can be interpreted as degrees of freedom of the
twisted mass deformations.

%%%%%%%%%%%%%%%%%%%%%%%%%%%

Speaker: Dr. Yusuke Ohkubo (Univ. Tokyo)

Time: July 2 (Mon) 15:00 ＠ Room 221

Title: Singular vectors of DIM algebra and generalized Macdonald functions
arising from AGT correspondence

Abstract: The Ding-Iohara-Miki algebra (DIM algebra) is a q-deformation of the
W-infinity algebra. A certain algebra obtained by free field representation
of the DIM algebra plays an important role in the 5D (q-deformed version of)
AGT correspondence. I will explain properties of the representation of this
algebra and present a coincidence between singular vectors of this algebra and
generalized Macdonald functions arising from AGT correspondence (q-deformed
version of AFLT basis). This coincidence can be regarded as a sort of
generalization of the one between singular vectors of deformed W-algebras and
ordinary Macdonald functions.

%%%%%%%%%%%%%%%%%%%%%%%%%%%
--
Taro Kimura 木村太郎
Department of Physics, Keio University
http://user.keio.ac.jp/~k_tar/

お世話になっております．岡山理科大学の柴田大樹です．

この度，下記の要領でセミナーを開催する運びとなりましたので，皆様にご案内いた
します．
https://www.xmath.ous.ac.jp/~shibata/conference/handayama_seminar.html
（大学へのアクセス方法などは上記HPでご確認いただけます．）

＝＝＝＝＝

Groups)

Non-abelian Galois cohomology is, from Grothendieck's point of view, the
simplest example of a theory that can "measure" mathematical objects
(projective curves, Lie algebras, ...) that are locally isomorphic. What is
curious is that the base topological space consists of just one point! (this
space therefore admits no non-trivial open coverings. That said, the theory
is far from trivial: One needs to understand the meaning of "local").
The talk will present an introduction, with plenty of examples, to
non-abelian Galois cohomology. Towards the end we will give some new
applications to the classification of quantum groups.

＝＝＝＝＝

Taiki SHIBATA
Department of Applied Mathematics
Okayama University of Science
Ridai-cho 1-1, Okayama 700-0005
JAPAN

さて、文部科学省特別経費の支援を受けた本格的スタディグループ
を2010年度より開始しました。今年度は

の連携のもと、第9回目を下記の要領で開催いたしますので、
ご案内申し上げます。

http://sgw2018.imi.kyushu-u.ac.jp/

スタディグループでは、 企業等の研究者から産業界・諸科学界が抱える

を目指します。

SGWは前半と後半に分けて行います。

1日目に問題提起があり、2、3日目にグループに分かれて
セミナー室で問題解決に向けた取り組みを行います。

7月30日(月)～31日(火)に作業を行います。

お手数をお掛け致しますが、事前登録の上（7月17日正午締切）
ご参加いただくようお願い申し上げます。

敬具

SGW2018主催者代表

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊

記

Study Group Workshop 2018 (SGW2018)

-- 前 半 --

https://www.kyushu-u.ac.jp/ja/campus/ito/

中国家庭料理　天天（九大伊都キャンパス内）
会費制

-- 後 半 --

http://www.ms.u-tokyo.ac.jp/access/index.html

東大生協駒場食堂2階ダイニング銀杏（東京大学駒場キャンパス内）
会費制

九州大学マス・フォア・インダストリ研究所
九州大学大学院数理学研究院
東京大学大学院数理科学研究科

九州大学数理・データサイエンス教育研究センター
九州大学リーディングプログラム
「キーテクノロジーを牽引する数学博士養成プログラム」
日中韓フォーサイト事業（東京大学）
博士課程教育リーディングプログラム
「数物フロンティア・リーディング大学院」

◎事前登録 & 懇親会申し込み
SGW2018に参加ご希望の方は、7月17日(火)正午までにホームページ
http://sgw2018.imi.kyushu-u.ac.jp/registration.html
より参加登録をお願いいたします。

◎問合せ先

SGW事務局　朝永・津留・小川
Tel: 092-802-4494

ww差出人: Kenichi Maruno

————————

equations of the KP hierarchy, and that each Schur polynomial can be
parametrized by a unique Young diagram.  We also know that the KP solitons
(exponential solutions) can be parametrized by certain decomposition of the
Grassmannians. In the talk, I will explain the connection between the
rational solutions and the KP solitons in terms of the Young diagrams.
More explicitly, I will show how one gets a rational solution from a KP
soliton.  I will also discuss a connection between quasi-periodic solutions
(theta or sigma functions) and the KP solitons.

http://www.f.waseda.jp/kmaruno/kouenkai.html

（このメールは複数のメーリングリストに投稿しております。重複してお受け取りの際は
ご容赦ください。）

タイトル：
On bocses (survey)

アブストラクト:
Crawley-Boeveyの論文をもとにbocs(a bimodule over a category with a coalgebra
structure)に対する基本的な事項を紹介する。さらに「Tame and Wild Theorem（Drozd）」
の証明における再定式化に用いられる layered bocs に着目して、それに関する操作である
reductionについてお話する。

Crawley-Boevey, W. W., On tame algebras and bocses. Proc. London Math. Soc.
(3) 56 (1988), no. 3, 451–483.
Bodnarchuk, Lesya, Vector bundles on degenerations of elliptic curves of
types II, III and IV. Doctoral thesis (2007).

I-siteなんばへは，地下鉄御堂筋線大国町駅が最寄りです。

--

〒599-8531 堺市中区学園町1-1

============================================================================
SEMINAR INFORMATION
============================================================================

series representations, and integration cycles

system on an affine space which is satisfied by various classical
hypergeometric series of several variables. A basis of solutions can be
constructed in terms of $\Gamma$-series by a (good) regular triangulation
of the Newton polytope. On the other hand, M.Schulze and U.Walther showed
that, when the parameter is non-resonant, GKZ system is isomorphic to the
twisted Laplace-Gauss-Manin connection of Laplace type. This corresponds
to the fact that solutions of GKZ system have Laplace integral
representations.
In this talk, we consider three types of twisted Laplace-Gauss-Manin
connections: Laplace, Euler-Laplace, and Residue-Laplace type. Under a
mild assumption on the parameters, we will see that these three types are
all isomorphic to GKZ system. Based on this algebraic description, we give
a combinatorial procedure of constructing integration cycles associated to
each type by means of a (good) regular triangulation. This basis of cycles
can easily be related to $\Gamma$-series. As for Euler-Laplace type, we
will see that combinatorial information of a triangulation can be
interpreted as "linked cycle" previously known to some experts.
----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

メーリングリストのみなさま

# 重複して受け取られた場合はご容赦ください。

お世話になっております。東京女子大学の山内です。

こちらの集会ですが，若手の参加者には旅費を援助できる

RIMSの荒川さんまでご連絡ください。

arakawa   AT  kurims.kyoto-u.ac.jp

どうぞよろしくお願いいたします。

メーリングリストのみなさま

# 重複して受け取られた場合はご容赦ください。

お世話になっております。東京女子大学の山内です。

（参加登録は不要です。）

Tomoyuki Arakawa
Bojko Bakalov
Emily Cliff
Thomas Creutzig
Chongying Dong
Boris Feigin
Sergei Gukov
Gerald Höhn
Cuipo Jiang
Haisheng Li
Xingjun Lin
Zhonzhu Lin
Ievgen Makedonskyi
Hiraku Nakajima
Li Ren
Ken-ichi Shimizu
Simon Wood

１２日（木）は夕食会が予定されております。
ご参加頂ける方は７月５日（木）までに以下のフォームより

Organizers:

どうぞよろしくお願い致します。

ウィロックス ラルフ

-----------------------------------------------------------------------------

タイトル :Gap Probabilities and discrete Painlevé equations

アブストラクト :
It is well-known that important statistical quantities, such as gap
probabilities, in various discrete probabilistic models of random matrix type
satisfy the so-called discrete Painlevé equations, which provides an effective
way to computing them. In this talk we discuss this correspondence for a
particular class of models, known as boxed plane partitions (equivalently,
lozenge tilings of a hexagon). For uniform probability distribution, this is
one of the most studied models of random surfaces.  Borodin, Gorin, and Rains
showed that it is possible to assign a very general elliptic weight to the
distribution, with various degenerations of this weight corresponding to the
degeneration cascade of discrete polynomial ensembles, such as Racah and Hahn
ensembles and their q-analogues. This also correspond to the degeneration
scheme of discrete Painlevé equations, due to Sakai. In this talk we consider
the q-Hahn and q-Racah ensembles and corresponding discrete Painlevé equations
of types q-P(A_{2}^{(1)}) and q-P(A_{1}^{(1)}).  This is joint work with
Alisa Knizel (Columbia University)

URL:http://www.ms.u-tokyo.ac.jp/seminar/2018/sem18-155.html
-----------------------------------------------------------------------------

https://app.mathsoc.jp/okayama18sept/

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/      Hitoshi Konno
_/  Dept. of Mathematics, Tokyo University of Marine Science and
_/  Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/      TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

メーリングリストの皆様、

セミナー のお知らせ

アブストラクト：The well-known Rogers-Ramanujan series of modular level
5 can be expressed in terms of 2F1-hypergeometric functions with the
icosahedral projective monodromy. We show that similar series of level 7
can be expressed as 3F2-hypergeometric functions with the PSL(2,7)
projective monodromy of 168 elements.

しばらくぶりに九大に来られる方は

Vidunas 氏の有限モノドロミーの講演は、
6/22 北大、6/28 九大、7/2 熊本大が予定されています。

ご参加をお待ちしております。

++++++++++

reversible dynamics is a fundamental problem ever since the seminal
thought by Boltzmann. In recent years, this problem has attracted
renewed attentions, in light of modern statistical mechanics and
experimental progress in ultracold atoms. In particular, it has been
recognized that the eigenstate thermalization hypothesis (ETH) plays a
crucial role in understanding the mechanism of thermalization in
isolated quantum systems. In this talk, starting from a brief review
of this topic, I will present our recent results. First, I will talk
about a rigorous proof of a weak version of the ETH [1] and systematic
numerical verification of its strong version [2]. Next, I will talk
about the second law for pure quantum states, where the heat bath is
initially in a single energy eigenstate [1]. Our rigorous proof of
the second law is based on the ETH and the Lieb-Robinson bound.

[1] E. Iyoda, K. Kaneko, T. Sagawa, Phys. Rev. Lett. 119, 100601 (2017).
[2] T. Yoshizawa, E. Iyoda, T. Sagawa, Phys. Rev. Lett. 120, 200604 (2018).

=====================

もとにいくつかの予想を立てた．同じ頃，Duke-Imamoglu-Tothにより本質的に同等な量が

が証明された．その結果はその後さまざまに発展させられて今日に至っているが，予想に
ついては何も進展がなかった．しかしごく最近，Imamoglu から，ポスドクや学生と一緒
に予想の一部を解いたとの知らせを受けた．このあたりのことをゆっくりお話ししたい．

=====================

https://www.josai.ac.jp/education/gra_science/mathematics_major/workshop_seminar_lecture/seminar/seminar.html

また過去のセミナー情報やノートなどはこちらをご覧ください．

Josai University
Kazuki Hiroe

ご注意ください。

よろしくお願いします。

--------------------------
Date: June 18 (Mon), 16:00–18:00, 2018
Place: Room 108, Department of Math, Kyoto Univ.
Speaker: Leonid Rybnikov (Higher School of Economics / Tokyo)
Title: Gaudin model and crystals (joint work with Iva Halacheva,
Joel Kamnitzer and Alex Weekes)
Abstract: Drinfeld-Kohno theorem relates the monodromy of KZ equation to
the braid group action on a tensor product of $U_q(\mathfrak{g})$-modules
by R-matrices. The KZ equation depends on the parameter $\kappa$ such that
$q=\exp(\frac{\pi i}{\kappa})$. We describe the limit Drinfeld-Kohno
correspondence when $\kappa\to 0$ along the imaginary line. On the KZ side
this limit is the Gaudin integrable magnet chain while on the quantum group
side the limit is a $\mathfrak{g}$-crystal. Namely, we construct a bijection
between the set of solutions of the algebraic Bethe ansatz for the Gaudin
model and the corresponding $\mathfrak{g}$-crystal, which preserves the
natural cactus group action on these sets. This can be regarded as the
$\kappa\to 0$ limit of the Drinfeld-Kohno theorem. If time allows I will
also dicuss some conjectural generalizations of this result relating it to
works of Losev and Bonnafe on cacti and Kazhdan-Lusztig cells.

よろしくお願いします。

------------------
Date: June 8 (Fri), 16:30–18:00, 2018
Place: Room 402, RIMS
Speaker: Ivan Cherednik (Chapel Hill / Kyoto)
Title: Jacobian factors in any ranks and DAHA superpolynomials
Abstract:
The theory of the moduli spaces of torsion free
sheaves in any ranks over singular curves is quite
a challenge, including nodal curves and rk=2
(Gieseker, Bertram, others). Its local counterpart is
the theory of affine Springer fibers for non-reduced
(germs of) singular curves, which is unsettled too.

For type A and in the nil-elliptic case, these fibers can
be identified with the Jacobian factors, which are simple
to define projective(!) varieties, though this approach
was not extended to higher ranks as well. For plane
curve singularities (spectral curves are of this kind in
type A), there is a strong support: the corresponding
geometric superpolynomials are expected to coincide
with the DAHA superpolynomials colored by columns,
and through them to be connected with any other
theories of superpolynomials, including the original
(uncolored) ones due to Khovanov-Rozansky.

I will define in this talk Jacobian factors in any ranks and
state their connection with the DAHA superpolynomials.
This is joint with Ian Philipp. The connection conjecture
was checked in many cases and a general proof seems
doable (at least in the motivic setting, to be explained).

-- Jun 21 and 22, 2018

Dear all,

I would like to announce the following two Mathematics and String theory seminars
at Kavli IPMU

1)
Speaker: Yongbin Ruan (U of Michigan)
Date: Thu, Jun 21, 2018, 15:30 - 17:00
Place: Seminar Room B

Title: Structure of higher genus Gromov-Witten invariants of the quintic 3-fold

Abstract: The computation of higher genus GW-invariants of compact Calami-Yau
3-folds (symbolized by the quintic 3-fold) has been a very difficult problem
for both mathematician and physicists. Using the B-model, physicists has
proposed a zoo of conjectures for the structure of higher genus GW-invariants
of the quintic 3-fold. Working with a group of exceptionally talented young
people Guo, Janda and Qile Chen, we have made a breakthrough recently to solve
all these conjectures.

2)
Speaker: Yongbin Ruan (U of Michigan)
Date: Fri, Jun 22, 2018, 13:15 - 14:45
Place: Seminar Room B

Title: Verlinde/Grassmanian Correspondence

Abstract: More than twenty years ago, Witten proposed an equivalence of two
quantum fields governing Verlinde algebra (or the theory of stable bundles
over a curve) and the quantum cohomology of Grassmanian. Motivated by
Witten's physical work and recent revival of quantum K-theory, we proposed
a K-theoretic version of so called Verlinde/Grassmanian correspondence. We
will first review the new ingredient of level structure in quantum K-theory
and surprising appearance of mock theta function. Then, we will present a
proof of correspondence in rank two using wall-crossing technique. This is
a joint work with Davesh Maulik and Ming Zhang.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

(correction)

“Representation theory of reductive Lie groups and algebras”

においてLeticia Barchini氏の所属が間違っていました。

お詫びして訂正させていただきます。

(Matumoto 60th; 1st announcement)

“Representation theory of reductive Lie groups and algebras”

を2019年3月27日〜29日の日程で東京大学駒場キャンパスに
おいて開催することとなりました。

Leticia Barchini (Oklahoma大)
Jing-Song Huang (HKUST)

Peter Trapa (Utah大)
David Vogan (MIT)

なお、以下のwebsiteに随時最新の情報を掲載して行く予定です。

http://www.ms.u-tokyo.ac.jp/~abenori/conf/20190327.html

よろしくお願いいたします。

このたび九州大学大学院数理学研究院では 「解析学」を専門とする

なお詳細については本学ホームページをご覧ください。
http://www.math.kyushu-u.ac.jp/recruits/index

----------------------

1. 採用職種： 教授３名
2. 所属： 九州大学大学院数理学研究院
3. 採用予定日： ２０１９年１月１日 以降のできるだけ早い時期
4. 任期： なし
5. 専門分野：解析系
6. 提出書類：
(1) 履歴書 (写真貼付、署名または捺印のこと、電子メールアドレス等の連絡先
を明記)
(2) 研究業績リスト（論文、講演）および主要論文の別刷等 (コピー可)
(3) 研究業績の説明および将来の研究計画（形式は自由）
(4) 教育に関する抱負について　（A4用紙１枚から２枚程度。形式は自由）
(5) ご本人について問い合わせることができる方 3 名の氏名と連絡先。そのう
ち少なくとも 1 名の方には、推薦状を応募期限までに下記宛にお送り下さるよ
うご依頼下さい。
7. 応募期限： ２０１８年７月１７日 (火) (必着)
8. 書類提出先および問い合わせ先：
〒 819–0395 福岡市西区元岡 744

9. その他
(1) 応募書類は封筒に「数理科学部門教授応募」と朱書きの上、簡易書留で郵

(2) 応募書類により取得する個人情報は、本人事案件にのみ利用いたします。
(3) 九州大学大学院数理学研究院では男女雇用機会均等法の精神を尊重してい
ます。
(4) この公募情報は以下の本研究院のホームページにも掲載されています。
http://www.math.kyushu-u.ac.jp/recruits/index

よろしくお願いします。

Date: June 1 (Fri), 13:00–14:30, 2018
Place: Room 402, RIMS
Speaker: Yusuke Ohkubo (Tokyo)
Title: DIM代数の特異ベクトルとAGT対応から現れる一般化Macdonald多項式
Abstract:
W-infinity代数のq-変形としてDing-Iohara-Miki代数と呼ばれるHopf代数がある。この

ついて述べる。この一致は従来から知られている通常のMacdonald多項式と変形W代数の

SIDE13（11月12-16日，福岡・JR博多駅シティ会議室）の登録が開始されました．多くの

おりますが，ご自分で予約されたい方は，この時期は大相撲と重なるなど繁忙期ですので，
できるだけ早く予約されることをお勧め致します．

13TH INTERNATIONAL CONFERENCE ON SYMMETRIES AND INTEGRABILITY OF
DIFFERENCE EQUATIONS (SIDE 13)

THIRD ANNOUNCEMENT

Venue: JR Hakata City Conference Rooms, Fukuoka, Japan
Dates: Sunday 11 November (arrival day) to Saturday 17 November 2018
(departure day)

Registration and submission of presentation is now open at:
http://side13conference.net/

SIDE 13 is the thirteenth in a series of biennial conferences devoted to
Symmetries and Integrability of Difference Equations, and in particular
to: ordinary and partial difference equations, analytic difference equations,
orthogonal polynomials and special functions, symmetries and reductions,
discrete differential geometry, integrable discrete systems on graphs,
integrable dynamical mappings, (discrete) Painlevé equations, integrability
criteria, Yang-Baxter type equations, cluster algebras, difference Galois
theory, quantum mappings, quantum field theory on space-time lattices,
representation theory, combinatorics, numerical models of differential
equations, discrete stochastic models and other related topics.

The first SIDE conference took place in Estérel, Quebec, Canada, May 22-29,
1994. The event was so successful that it gave rise to the series of
conferences since held in the United Kingdom, Italy, Japan, France, Finland,
Germany, Australia, Bulgaria, China, India and Canada.

SIDE 13 will take place at JR Hakata City Conference Rooms, in Fukuoka, Japan,
from November 11, 2018 (arrival day) to November 17, 2018 (departure day).
JR Hakata City is located within JR Hakata Station in Fukuoka, and is just
five minutes travel from Fukuoka Airport by subway. Fukuoka is one of the
oldest historic cities in Japan and famous for its excellent local food.
Transportation to and from other major cities in Japan is frequent and
reasonably fast: there are more than 60 flights per day from Tokyo (1:30),
and more than 70 JR Shinkansen trains per day from Osaka (typically 2:30).

Organizing Committee

* Kenji Kajiwara (Chair, IMI, Kyushu University, Fukuoka)
* Saburo Kakei (Rikkyo University, Tokyo)
* Ken-ichi Maruno (Waseda University, Tokyo)
* Nozomu Matsuura (Fukuoka University, Fukuoka)
* Masatoshi Noumi (Kobe University, Kobe)
* Daisuke Takahashi (Waseda University, Tokyo)
* Tomoyuki Takenawa (Tokyo University of Marine Science and Technology, Tokyo)
* Tetsuji Tokihiro (University of Tokyo, Tokyo)
* Satoshi Tsujimoto (Kyoto University, Kyoto)
* Ralph Willox (University of Tokyo, Tokyo)
* Yasuhiko Yamada (Kobe University, Kobe)

* Frank Nijhoff (Chair, Leeds)
* Alexander Bobenko (TU Berlin)
* Lucia Di Vizio (Univ. de Versailles-St Quentin)
* Basil Grammaticos (CNRS, Paris VII)
* Rei Inoue (Chiba)
* Jarmo Hietarinta (Turku)
* Nalini Joshi (Sydney)
* Kenji Kajiwara (Kyushu)
* Decio Levi (Rome TRE)
* Vassilis Papageorgiou (Patras)
* Junkichi Satsuma (Musashino University)
* Wolfgang Schief (UNSW)
* Yuri Suris (TU Berlin)
* Claude Viallet (CNRS, Paris VI)
* Pavel Winternitz (CRM, Montreal)
* Da-jun Zhang (Shanghai University)

Scientific Committee

* Ralph Willox (Chair, Tokyo)
* Wolfgang Schief (UNSW)
* Lucia Di Vizio (Versailles-St Quentin)
* Decio Levi (Rome TRE)
* Satoshi Tsujimoto (Kyoto)
* Rei Inoue (Chiba)
* Takao Suzuki (Kindai University)

It is expected that the number of participants to the meeting will exceed
the number of available slots for talks and posters. The scientific committee
will therefore have to make a selection of proposed presentations. Applicants
will be informed of the decision of the scientific committee by August 10 2018.

In general, all talks will be allotted 30 minutes (including discussions).
A poster session will be organized and each presenter will have a short
two minute oral presentation to advertise the poster. Poster Awards will be
organized for students and early career researchers.

There will be no parallel sessions.

Instead of publishing proceedings we plan to arrange a book of abstracts
(up to 2 pages each in A4 size).

Important Dates

* Registration and submission opens May 23 2018
- Early bird registration deadline: September 15 2018
- Final deadline: September 30 2018
* Submission deadline for titles and abstracts: July 31 2018
- Notification of the result of each application: August 10 2018
* Financial support application deadline: June 30 2018
- Notification of financial support: July 30 2018

Registration Fee and Related Costs

* Registration fee: 30,000JPY (Until September 15 2018)
35,000JPY (After September 15 2018)
* Conference dinner: 8,000JPY
* Excursion: 2,000JPY

Accompanying persons will not be required to pay the registration fee.
However, if they choose to attend, the conference dinner and excursion will
be charged as above.

Accommodation

Accommodation for participants has been secured in blocks. Please refer to
the online booking system available at the registration site above. Rooms
with double bed or two beds will be available on request.

If you would like to book by yourself on other booking sites, it is highly
recommended to secure the booking sufficiently early. Actually, November is
high season in Fukuoka and sometimes it is difficult to book accommodation.
For example, the Sumo (Japanese traditional wrestling) tournament will be
held in Fukuoka during November 11-25 which is expected to make the booking
tight.

Financial Support

Limited financial support, mainly for early career researchers and students
giving presentations, will be available. The deadline of application will
be June 30 and the result will be notified July 30.

* Early Career Researchers: Researchers within five years after obtaining
their Ph.D degree, counted from May 1 2018.

Other information such as detailed submission guidelines will be given in
the webpage.

For further information, please see our website:
http://side13conference.net/

JR Hakata City Conference Rooms:
http://www.jrhakatacity.com.e.bv.hp.transer.com/communicationspace/meetingroom/
(Chinese and Korean versions are also available from
https://www.jrhakatacity.com/translation/ )

For information on the SIDE series see:
http://side-conferences.net/

============================================================================
SEMINAR INFORMATION
============================================================================

(good) vertex operator superalgebra is the modular invariance property of
characters established by C. Dong and Z. Zhao. As an application of the
property, D. Adamovic (together with the resultobtained by M. Wakimoto)
proved that all the fusion rules for the simple$N=2$ VOSA of central charge
$c_{p,1}=3(1−\frac{2}{p})$ are computedfrom the modular S-matrix by the
Verlinde formula. In this talk we present a new modular invariant'' family
of simplehighest weight modules over the simple $N=2$ VOSA of central charge
$c_{p,p'}=3(1−\frac{2p'}{p})$ and their modular transformation formulas.
Here $(p,p')$ is a pair of coprime integers such that $p,p'>1$.
In addition, we discuss the so-called continuous'' Verlinde formula in
the spirit of T. Creutzig and D. Ridout.

----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

ちしております．

============================================================

GKZ系は種々の積分表示を持っているが、積分表示間の関係や積分サイクルについても理解
が進んできた。講演ではGKZ系の標準的事項を古典的超幾何級数との関係を重視して述べた
のち、積分表示、級数解、正則三角形分割の対応関係を述べる。
============================================================

みなさま

さきほどのメールで，日程を間違ってお伝えしてしまいました。

よろしくお願い致します。

**********************************************************************

Hyperscaling for oriented percolation in 1+1 space-time dimensions

Consider nearest-neighbor oriented percolation in d + 1 space–time dimensions.
Let $\rho$, $\eta$, $\nu$ be the critical exponents for the survival probability
up to time t, the expected number of vertices at time t connected from the
space–time origin, and the gyration radius of those vertices, respectively. We
prove that the hyperscaling inequality $d\nu \ge \eta + 2\rho$, which holds for
all $d \ge 1$ and is a strict inequalityabove the upper-critical dimension 4,
becomes an equality for $d = 1$, i.e., $\nu = \eta + 2\rho$, provided existence
of at least two among those exponents. The key to the proof is the recent result
on the critical box-crossing property by Duminil-Copin et al (to appear in
Probab. Theory Relat. Fields).

みなさま

お時間がありましたらご参加いただければ幸いです。

**********************************************************************

Hyperscaling for oriented percolation in 1+1 space-time dimensions

Consider nearest-neighbor oriented percolation in d + 1 space–time dimensions.
Let $\rho$, $\eta$, $\nu$ be the critical exponents for the survival probability
up to time t, the expected number of vertices at time t connected from the
space–time origin, and the gyration radius of those vertices, respectively. We
prove that the hyperscaling inequality $d\nu \ge \eta + 2\rho$, which holds for
all $d \ge 1$ and is a strict inequalityabove the upper-critical dimension 4,
becomes an equality for $d = 1$, i.e., $\nu = \eta + 2\rho$, provided existence
of at least two among those exponents. The key to the proof is the recent result
on the critical box-crossing property by Duminil-Copin et al (to appear in
Probab. Theory Relat. Fields).

みなさま

Date: June 1 (Fri), 15:00-16:00
Room: RIMS 402
Speaker: Tianshu Liu (Melbourne)
Title: Affine osp(1|2) and its coset construction
Abstract:
Conformal field theory is an essential tool of modern mathematical physics
with applications to string theory and to the critical behaviour of statistical
lattice models. The symmetries of a conformal field theory include all
angle-preserving transformations. In two dimensions, these transformations
generate the Virasoro algebra, a powerful symmetry that allows one to calculate
observable quantities analytically. The construction of one family of conformal
field theories from the affine Kac-Moody algebra sl(2) were proposed by Kent in
1986 as a means of generalising the coset construction to non-unitary Virasoro
minimal models, these are known as the Wess-Zumino-Witten models at admissible
levels. This talk aims to illustrate, with the example of the affine Kac-Moody
superalgebra osp(1|2) at admissible levels, how the representation theory of a
vertex operator superalgebra can be studied through a coset construction. The
method allows us to determine key aspects of the theory, including its module
characters, modular transformations and fusion rules.

Date: June 1(Fri), 16:30-18:00
Room: RIMS 402
Speaker:David Ridout (Melbourne)
Title: Relaxed modules over affine vertex operator algebras
Abstract:
Some of the most important non-rational VOAs are the admissible level affine
ones. Their simple modules in category O have been classified, but this omits
many physically necessary simple modules. Motivated by modularity (and physical)
consistency, we report on work towards a classification of simple modules in
category R, the category of "relaxed" highest-weight modules.

Joint work with Kazuya Kawasetsu.

みなさま

ALTRet2018のプログラムが公開されています。

お送りしています。参加申し込みをしたにもかかわらず、メールを受け取っていない
という方はお知らせ下さい。

なお、セミナーのあとIpさんの送別会がある予定です。ご興味のある方はご連絡ください。

よろしくお願いします。

Date: May 18 (Fri), 16:30--18:00, 2018
Place: Room 402, RIMS
Speaker: Ivan Ip (Kyoto)
Title: Positive Peter-Weyl Theorem
Abstract:
I will explain the Peter-Weyl Theorem for split real quantum groups of type An,
generalizing the previous result in the case of Uq(sl(2,R)). I will talk about
the necessary ingredients needed to state and proof the theorem, including the
GNS representation of C*-algebra, Heisenberg double construction, and cluster
realization of positive representations. This is a joint work with Gus Schrader
and Alexander Shapiro.

Date: May 18 (Fri), 16:30--18:00, 2018
Place: Room 402, RIMS
Speaker: Thomas Creutzig (Alberta)
Title: Positive Peter-Weyl Theorem
Abstract:
I will explain the Peter-Weyl Theorem for split real quantum groups of type An,
generalizing the previous result in the case of Uq(sl(2,R)). I will talk about
the necessary ingredients needed to state and proof the theorem, including the
GNS representation of C*-algebra, Heisenberg double construction, and cluster
realization of positive representations. This is a joint work with Gus Schrader
and Alexander Shapiro.

みなさま

Date: May 17 (Thu), 10:30--12:00, 2018
Place: Room 006, RIMS
Speaker: Thomas Creutzig (Alberta)
Title: S-duality in the example of the large N=4 superconformal algebra
Abstract:
There is a very rich interplay between certain supersymmetric four-dimensional
gauge theories, the quantum geometric Langlands program and vertex algebras.
The key ingredient for all three are master chiral algebras that serve as
functors between representation categories. I will present a few theorems
concerning a family of vertex superalgebras called the large N=4 superconformal
algebras at central charge -6 and explain how they confirm some conjectures
originating from physics and geometry.

なお翌日18日にも表現論セミナーが開催される予定です。

ww件名: [MugenML 834] 集中講義のお知らせ（5/21-25）

ご関心のある方はぜひご参加ください．

------------------------------------

Leonid Rybnikov (Higher School of Economics, Moscow)

１５：００～１７：００

Bethe ansatz and crystals.

Gaudin model is a completely integrable magnet chain attached to
arbitrary semisimple Lie algebra g and a collection of irreducible
representations of g. It can be solved by algebraic Bethe ansatz method.
Feigin and Frenkel interpreted the solutions of Gaudin Bethe ansatz
equations as monoderomy-free opers on the projective line, and this
allows to prove the completeness of Bethe ansatz. On the other hand,
Feigin-Frenkel description of Gaudin model relates it to geometry of
moduli spaces of curves. In particular, the fundamental group of the
real Deligne-Mumford moduli space of stable rational curves acts on the
set of Bethe vectors of the Gaudin magnet chain. It appears as a
subgroup in the Galois group of Bethe ansatz equations. This fundamental
group (known as Cactus group) arises naturally as an analog of the braid
group in coboundary monoidal categories; in particular, it acts on
tensor product of Kashiwara crystals. Recently we showed that there is a
natural bijection between Bethe vectors of the Gaudin model and highest
elements in the tensor product of corresponding crystals, which respects
the cactus group action.

In this mini-course I will explain Bethe ansatz for Gaudin model
(following Feigin and Frenkel) as well as our recent results (with
Iva Halacheva, Joel Kamnitzer and Alex Weekes) relating Bethe ansatz
to crystals. More detailed plan is below:

1. Gaudin algebras from the center on the critical level. (main
references: Boris Feigin, Edward Frenkel, Nikolai Reshetikhin, Gaudin
Model, Bethe Ansatz and Critical Level arXiv:hep-th/9402022 and
B. Feigin, E. Frenkel, V. Toledano-Laredo, Gaudin models with irregular
singularities, arXiv:math/0612798)
2. Bethe ansatz conjecture and opers on the projective line. (main
references: Boris Feigin, Edward Frenkel, Leonid Rybnikov, Opers with
irregular singularity and spectra of the shift of argument subalgebra
arXiv:0712.1183 and Leonid Rybnikov, A proof of the Gaudin Bethe Ansatz
conjecture, arXiv:1608.04625)
3. Deligne-Mumford space of stable rational curves as the parameter
space for Gaudin subalgebras. (main references: Leonardo Aguirre,
Giovanni Felder, Alexander P Veselov, Gaudin subalgebras and stable
rational curves, arXiv:1004.3253, and Leonid Rybnikov, Cactus group and
monodromy of Bethe vectors, arXiv:1409.0131)
4. Crystals and commutors. (main references: Andre Henriques,
JoelKamnitzer, Crystals and coboundary categories, arXiv:math/0406478
andJoel Kamnitzer, Peter Tingley, The crystal commutor and Drinfeld's
unitarized R-matrix, arXiv:0707.2248)
5. Crystal structure and cactus group action on the set of Bethe vectors.
(main references: Leonid Rybnikov, Cactus group and monodromy of Bethe
vectors, arXiv:1409.0131, and Iva Halacheva, Joel Kamnitzer, Leonid Rybnikov,
Alex Weekes,Crystals and monodromy of Bethe vectors, arXiv:1708.05105)
------------------------------------

Mugen-ML の皆様、

Strasbourg 大学名誉教授の Reinhard Schaefke 氏を

どうぞよろしくお願い申し上げます。

〒610-0321 京都府京田辺市多々羅都谷1-3
(tel) 0774-65-6653
(fax) 0774-65-6801
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

"Seminar on Singular Perturbations"

プログラム :

● 13:30 -- 15:00 Reinhard Schaefke 氏 (Strasbourg)

Title: Towards the summability of WKB-solutions for
third order singularly perturbed ODE

Abstract: Summability of formal series with respect to
the small parameter for singularly perturbed ODE is
a global problem and seems known in general only for
second order ODE. An approach proving the summability
for third order ODE with suitable geometry of Stokes
lines is presented.

● 15:30 -- 17:00 Shinji Sasaki 氏 (Toronto)

Title: On WKB-theoretic transformations in higher
order equations

Abstract: Since the discovery of new Stokes lines
by Berk-Nevins-Roberts, WKB analysis of higher order
linear ODEs has been known to be an interesting but
difficult subject. One of the most important problems
is Borel summability of WKB solutions, and it seems
that now this problem is being solved (R. Schaefke).
In this talk, as a related fundamental problem we
discuss transformations to canonical equations.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

2018年度AIMaP集会等の公募

2017年度より開始しているAIMaP事業は、全国の数学・数理科学研究者と諸科学分野や

とともに、そこで得られた知見・経験の共有や横断的展開を図ることを考えています。
そこで、以下の通り募集致します。

■公募の内容

１．諸科学・産業界向けの集会
(例) 諸科学分野の学会や産業界の集会等において数学応用研究事例を紹介する会合、

２．諸科学・産業からの問題提示型集会
(例) スタディグループ（企業や諸科学分野から提示された問題の解決策について、

３．その他の集会
(例) 特定のテーマやトピックについて諸科学・産業関係者と数学・数理科学研究者が

■申請から採択までのスケジュール
4月27日(金) 電子申請受付開始
[ 6月 4日(月) 17時 申請締切（電子申請のみ受付）]
＊登録後に承諾書をご提出いただきます。
6月末 採択結果通知

■公募要領・審査要領

https://aimap.imi.kyushu-u.ac.jp/wp/archives/1779

・必要書類

■申請方法

https://aimap.imi.kyushu-u.ac.jp/wp/shinsei2018
より申請手続きを行ってください。
* 申請後、承諾書（主催機関代表者の押印）の提出が必要となります。
ご登録後にAIMaP事務局よりご連絡いたします。
* 公募申請書ファイルはWordファイルのままアップロードしてください。
* 内容を修正される場合は、同ページより再申請手続きを行ってください。

■申請できる経費

(会場借料等)。その他の経費については、必要に応じ主催機関等が負担してください。

■開催時期および開催場所
2018年7月から2019年3月までに国内で開催し、年度末までに会計処理を完了できる
ような計画をお願いします。

■採択後の手続き

また、開催の半年後を目途にフォローアップ調査を実施いたします。

■問い合わせ先
〒819-0395 福岡市西区元岡744

AIMaP事務局
Tel: 092-802-4494
Email: aimap  AT  imi.kyushu-u.ac.jp
URL: https://aimap.imi.kyushu-u.ac.jp/wp/

Mugen ML のみなさま

よろしくお願い致します。

ーーーーここからーーーーー

タイトル：多重ゼータ値

＊今回はテーマが「多重ゼータ値」ということで、関連する

http://www.ist.aichi-pu.ac.jp/~tasaka/ss2018/index.html
をご覧いただき、参加を希望される方は「参加＆宿泊情報」
にリンクしてある申し込みフォームに必要事項を入力してください。
メールでのお申し込みは受領できません。

5月31日（木）
といたしますが、宿泊施設の収容人数に限りが
あるため、それ以前に参加申し込みを終了する
ことがあります。先着順とさせていただきますので、

--
Yoshihiro TAKEYAMA
Department of Mathematics,
Faculty of Pure and Applied Sciences,
University of Tsukuba,
Tsukuba, Ibaraki 305-8571, Japan
http://researchmap.jp/takeyama/

Tue, May 22, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker: Yu-Wei Fan  (Harvard U)
Date:  Tue, May 22, 2018, 13:15 - 14:45
Place:  Seminar Room A

Title: Systoles, Special Lagrangians, and Bridgeland stability conditions

Abstract: Loewner's torus systolic inequality states that the least length
of a non-contractible loop (systole) on a torus can not be too large compare
to its volume. We attempt to generalize this relation from the viewpoint of
Calabi-Yau geometry, which naturally leads to the notions of systole and
systolic ratio of Bridgeland stability conditions. We will first recall some
relevant backgrounds on mirror symmetry and Bridgeland stability conditions.
Then we will study an example of K3 surface, which turns out to be a
lattice-theoretic question.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

R-matrices, Cluster Algebras, and Integral Systems：プログラムのご案内

Infinite Analysis 18 Spring School:
R-matrices, Cluster Algebras, and Integral Systems
の５月２３日（水）のスケジュールと場所に多少変更がありましたので、ご案内します。

名古屋大学多元数理科学棟5F５０９(２３日午後）
（場所は以下のweb pageの地図をご参照ください）

プログラム
May 22 (tue)
10:00-11:00 Gekhtman (1)
11:15-12:15 Pylyavskyy (1)
lunch
15:00-16:00 Inoue (1)

May 23 (wed)
10:00-11:00 Pylyavskyy (2)
lunch
13:45-14:45 Inoue (2)
15:00-16:00 Okubo (1)
16:15-17:15 Gekhtman (2)

May 24 (thu)
11:15-12:15 Okubo (2)
lunch
13:45-14:45 Gekhtman (3)
15:00-16:00 Pylyavskyy (3)

タイトル
Michael Gekhtman (Notre Dame)
Cluster structures on Poisson-Lie groups

Rei Inoue (Chiba)
Networks on surfaces and integrable systems

Naoto Okubo (Aoyama)
q-discrete Painleve equations and quiver mutation

Pavlo Pylyavskyy (Minnesota)
Zamolodchikov periodicity and integrability (talk 1,2)
R-systems (talk 3)

Moduli spaces of local systems and tensor products of positive representations

お知らせします。

・表現論セミナー
2018.5.10 13:00ー14:30 数学教室川井ホール

タイトル
Hodge decomposition of the Felder semi-infinite double complexes for
Virasoro Fock modules and $sl_2({\bf C})$ action on the extended W-algebra
of type $A_1$

Virasoro 代数の極小系列を与える中心荷電
$c_{p_+, p_-}=13-6\frac{(p_+-p_-)^2}{p_+p_-}$
($p_+, p_-$ は2以上の整数で互いに素, $p=p_+p_-\geq 7$)
における Felder の Virasoro Fock module に関する semi-infinite double complex
の Hodge decomposition を構成する。

double complex の2つの微分 $d_+, d_-$ に対し、その双対微分 $d_+^*, d_-^*$ を、
Virasoro 代数の自由場表示における marginal deformation の1階微分係数として

VOA としての derivation を与えることを示す。この事実を使って、頂点作用素代数の
$C_2$-有限性を示し、更にその零モード代数 $A_0(M_{p_+, p_-})$ の構造を完全に決定
できる。

この結果は、名古屋大学松本拓也氏、東京都市大学橋本義武氏との共同研究であり、

している。

https://www.dropbox.com/s/l3imxwb88vlhhve/20180510abst.pdf

・談話会及び集中講義

Lisovyy は中心電荷を1 とする4点共形ブロックのフーリエ変換として, 第六パンルヴェ

q-差分パンルヴェタウ関数のフーリエ展開が q-Nekrasov関数を用いて記述できることを

https://www.math.tohoku.ac.jp/research/colloquium.html

パンルヴェタウ関数がVirasoro代数の表現論を用いて定まる共形ブロックで表示される
という発見が、2012年にGamayun、Iorgov、Lisovyy によってなされた。本講義では、

----

Koji Hasegawa at Mathematical Institute, Tohoku University, Sendai JAPAN

------
Workshop on Nonlinear Water Waves
In honor of Professor Mitsuhiro Tanaka on the occasion of his retirement

Nail Akhmediev (Australian National University)
Triantaphyllos Akylas (Massachusetts Institute of Technology)
Roberto Camassa (University of North Carolina)
Wooyoung Choi (New Jersey Institute of Technology)
Tatsuo Iguchi (Keio University)
Taro Kakinuma (Kagoshima University)
Takeshi Kataoka (Kobe University)
Yuji Kodama (Ohio State University)
David Lannes (The Université de Bordeaux)
Ken-ichi Maruno (Waseda University)
Yoshimasa Matsuno (Yamaguchi University)
Tetsu Mizumachi (Hiroshima University)
Sunao Murashige (Ibaraki University)
Yoshihiro Niwa (Tokyo University)
Yasuhiro Ohta (Kobe University)
Victor Shrira (Keele University)
Masanori Takaoka (Doshisha University)
Mitsuhiro Tanaka (Gifu University)
Takuji Waseda (Tokyo University)
Harry Yeh (Oregon State University)
Naoto Yokoyama (Doshisha University / Kansai University)

Takanori Hino (Yokohama National University)
Tatsuo Iguchi (Keio University)
Taro Kakinuma (Kagoshima University)
Takeshi Kataoka (Kobe University)
Ken-ichi Maruno (Waseda University)
Tetsu Mizumachi (Hiroshima University)
Sunao Murashige (Ibaraki University)
Yasuhiro Ohta (Kobe University)

------------------------------------------------
Kenichi Maruno
Department of Applied Mathematics,
School of Fundamental Science and Engineering,
Faculty of Science and Engineering, Waseda University
3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555 Japan
phone：+81-(0)3-5286-8163
extension：73-3627

お誘い合わせの上ご参加下さい。

————

of an obliquely incident solitary wave at a vertical wall. The numerical model
is based on the pseudo-spectral method for the full Euler formulation. With
the aid of a laser sheet in the laboratory, the wave profiles are measured
optically in sub-millimeter precision. Discrepancies reported in previous
works are now substantially improved, partly because of the higher-order KP
theory and in part because of the advancement in computational power and
laboratory instrumentation. While the theory predicts the maximum of four-fold
(4.0) amplification of the Mach stem, the maximum observed in the laboratory
was 2.922 (the previous laboratory study had achieved the amplification of
2.4), while our numerical simulation reached the maximum of 3.91 (previously
reported amplification was 2.897). Also presented are other laboratory
realizations of soliton-soliton interaction predicted by the KP theory.

——

extensions.

degrees of freedom and as such it has an infinite number of solutions that
includes solitons, breathers, rogue waves, radiation waves and their
combinations. Every extension of the NLSE expands dramatically variety of
it's solutions. Both conservative and dissipative extensions will be
considered in this talk.

http://www.f.waseda.jp/kmaruno/isseminar.html

のお知らせ（第二報）

---------------------------------------------------------------------

---------------------------------------------------------------------

(建物が異なるのでご注意ください。)

プログラム：

4/29(日)

10:00--11:30 Hiroyuki Nakaoka (Kagoshima University)
On a unification of n-exact categories and n+2-angulated categories

13:00--14:30 Martin Herschend (Uppsala University)
Categories with higher dimensional Auslander-Reiten theory

15:00--16:00 Hiroyuki Minamoto (Osaka Prefecture University)
Resolutions of DG-modules

16:30--18:00 Erik Darpo (Nagoya University)
TBA

4/30(月)

10:00--11:30 Izuru Mori (Shizuoka University)
Tilting theory in noncommutative algebraic geometry

13:00--14:30 Yusuke Nakajima (IPMU)
Non-commutative crepant resolutions of some toric rings

15:00--16:00 Takahide Adachi (Osaka Prefecture University)
Silting objects and t-structures

16:30--18:00 Osamu Iyama (Nagoya University)
Tilting Cohen-Macaulay representations

5/1(火)

10:00--11:30 Yuya Mizuno (Shizuoka University)
Torsion pairs for path algebras and sortable elements

13:00--14:30 Aaron Chan (Nagoya University)
Replication and representation-finiteness of hereditary algebras

15:00--16:30 Laurent Demonet (Nagoya University)
Lattice of torsion classes
---------------------------------------------------------------------

Arkady Vaintrob    (U of Oregon) -- May 08, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU.

Speaker: Arkady Vaintrob (U of Oregon)
Date: Tue, May 08, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: Cohomological field theories from matrix factorizations

Abstract:
A Cohomological field theory (CohFT) is an algebraic structure
underlying the properties of Gromov-Witten invariants and quantum
cohomology. I will describe a CohFT associated with a quasihomogeneous
hypersurface singularity together with a finite group G of its
symmetries. The state space of this theory is the equivariant Milnor
ring of W and the corresponding invariants can be viewed as analogs of
Gromov-Witten invariants for the non-commutative space associated with
the pair (W,G). The construction is based on categories of (equivariant)
matrix factorizations of singularities. The role of the virtual
fundamental class from the Gromov-Witten theory played by a "fundamental
matrix factorization" over a certain moduli space. I will present the
main ingredients of the construction of the CohFT and some recent
results and applications. The talk is based on joint work with A.Polishchuk.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

タイトル:
Algebras that admit n-cluster tilting subcategories
アブストラクト:
In higher dimensional Auslander-Reiten theory one replaces the module
category of an associative algebra by a subcategory with suitable
homological properties. The most standard choice is to consider a
so-called n-cluster tilting subcategory. A fundamental question is
therefore: which algebras admit an n-cluster tilting subcategory of
their module category? Although a definitive answer to this question
seems to much to hope for, there are several results on how to obtain
such algebras. In my talk I will give a survey of these results with a
focus on algebras where an n-cluster tilting subcategory can be
described explicitly.
--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

in Quantum Matter (ICTP, 27 August - 14 September 2018)

Trieste Summer School on Collective Behaviour in Quantum Matter
(ICTP, 27 August - 14 September 2018) の案内を転送いたします。

-------- Forwarded Message --------
Subject: Trieste Summer School on Collective Behaviour in Quantum Matter
(ICTP, 27 August - 14 September 2018)
Date: Thu, 12 Apr 2018 11:06:43 +0200
From: Roderich Moessner

Dear Colleague,

We are organizing a three-week Summer School on Collective Behaviour in
Quantum Matter at ICTP in Trieste (27 August - 14 September 2018), and we
would be glad if you could forward this message to potential participants
in your group, and perhaps display the attached poster in a suitable
location.

The online application form is at http://indico.ictp.it/event/8331/ .
Deadline for application was 9 April (requesting financial support), or
14 May(otherwise). We will continue to review late applications which
arrive until 20 April until the spaces for support are filled

aims to teach a modern course in condensed matter andstatistical physics.
It combines basic concepts with recent structural andinterdisciplinary
developments. It features a combination of theory and computational
courses, and seminars on experimental progress inthe field. The program
will cover a broad variety of topics within condensed matter physics,
emphasizing connections with related fields such as quantum information,
atomic, optical and high energy physics:

1 - Statistical Mechanics: from foundations to quantum information
2 - Numerical methods: high-level programming and advanced
numerical methods
3 - Coherent dynamics: entanglement, decoherence, phase transitions,
driven systems
4 - Topological quantum matter: phases and diagnostics
5 - Physical implementations: cold atoms, trapped ions, nanophysics,
materials.

With best regards,
C Castelnovo, M Dalmonte, P Fendley, R. Moessner, A Scardicchio
++++++
List of lecturers

Fabien Alet (CNRS, Toulouse, France)
Eva Andrei (Rutgers University, US)
Benjamin Beri (University of Cambridge, UK)
Immanuel Bloch (MPQ, Garching, Germany)
Pasquale Calabrese (SISSA, Trieste, Italy)
Paola Cappellaro (MIT, US)
John Chalker (University of Oxford, UK)
Xie Chen (Caltech, US)
Jean Dalibard (College de France, Paris, France)
Deepak Dhar (Tata Institute for Theoretical Physics, India)
Michel Devoret (Yale University, US)
Markus Heyl (MPIPKS, Dresden, Germany)
David Huse (Princeton, US)*
Vedika Kemani (Harvard University, US)
Werner Krauth (Ecole Normale Superieure, Paris, France)
Bella Lake (Berlin Technical University, Germany)
Chris Laumann (Boston University, US)
Achilleas Lazarides (MPIPKS, Dresden, Germany)
Andy MacKenzie (MPI-CPfS Dresden, Germany)
Esteban Martinez (University of Copenhagen, Denmark)
Ulrich Schollwoeck (LMU, Munich, Germany)
Marko Znidaric (University of Ljubljana, Slovenia)

Christian Korffから研究会「Quantum integrability and quantum Schubert calculus」
の案内をもらいましたので転送します。

------------------------------------

Vassily and I are organising a workshop in June

https://royalsociety.org/science-events-and-lectures/2018/06/quantum-integrability/

Unfortunately due to the format and funding restrictions for the meeting we had
already to commit all speaker slots. I am very sorry. There is a poster session
though, in case you are interested and of course I'd be delighted if you decide
to come.

Please pass the meeting on to anyone else you think might be interested in
attending. Thank you very much.

Best,
Christian
_____________
Dr Christian Korff
School of Mathematics & Statistics, University of Glasgow
Direct line: +44 (0)141 330 6198
Fax: +44 (0)141 330 4111

http://www.maths.gla.ac.uk/~ck/

The Mathematics and Statistics Building
University of Glasgow
University Place
Glasgow G12 8SQ

The University of Glasgow, charity number SC004401
--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/ Hitoshi Konno
_/ Dept. of Mathematics, Tokyo University of Marine Science and
_/ Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/ TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

DATE and PLACE changed

April 19th 2018 (Thur) RIMS room 006 10:30–12:00

となります。念の為タイトルとアブストラクトも再送します。

よろしくお願いします。

------
Speaker: Ievgen Makedonskyi (Kyoto U)
Date & Place: April 20th 2018 (Fri) RIMS room 402 16:30–18:00
Title : Vertex algebras and coordinate rings of semi-infinite flags
Abstract:
The direct sum of irreducible level one integrable representations of
affne Kac-Moody Lie algebra of (affne) type ADE carries a structure of
P/Q-graded vertex operator algebra. There exists a filtration on these
modules due to Kato and Loktev such that the corresponding graded vector
space is a direct sum of global Weyl modules.  The associated graded
space with respect to the dual filtration is isomorphicto the homogenous
coordinate ring of semi-in finite flag variety.  We describe the ring
structure in terms of vertex operators and endowthe homogenous coordinate
ring with a structure of P/Q-graded vertex operator algebra. We use the
vertex algebra approach to derive semiinfinite Pluecker-type relations in
the homogeneous coordinate ring.

http://www.setsunan.ac.jp/koubo/
はご覧ください。

よろしくお願い致します。

----------------------------------------------------------------------
----------------------------------------------------------------------

1名 講師

2019年04月01日

2018年05月11日

%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%

お待ちしております．

============================================================

ある。数え上げ幾何学的な不変量や、可積分系のタウ函数など様々な量が位相的漸化式
から得られることが知られている。

ついて述べる。本講演で紹介する結果は、小池達也氏(神戸大)、竹井優美子氏(神戸大)
との共同研究にもとづく。
============================================================

---

right-strongly quasi-hereditary algebras, motivated by Iyama's finiteness
theorem of representation dimensions of artin algebras. In this talk, we
give characterizations of these algebras in terms of heredity chains and
right rejective subcategories.  Moreover, we describe two applications of
these characterizations. One is that any artin algebra of global dimension
at most two is always right-strongly quasi-hereditary. The others are
characterizations of Auslander algebras and Auslander-Dlab-Ringel algebras
to be strongly quasi-hereditary. This talk is based on my ph. D. thesis.

〒558-8585

--
-------------------------------------
Hyohe MIYACHI
Department of Mathematics,
Osaka City University
3-3-138 Sugimoto, Sumiyoshi-ku,
Osaka city, Osaka, JAPAN
zip code 558-8585
TEL:+81(0)6-6605-2631
FAX:+81(0)6-6605-2515
-------------------------------------

right-strongly quasi-hereditary algebras, motivated by Iyama's finiteness
theorem of representation dimensions of artin algebras. In this talk, we
give characterizations of these algebras in terms of heredity chains and
right rejective subcategories.  Moreover, we describe two applications of
these characterizations. One is that any artin algebra of global dimension
at most two is always right-strongly quasi-hereditary. The others are
characterizations of Auslander algebras and Auslander-Dlab-Ringel algebras
to be strongly quasi-hereditary. This talk is based on my ph. D. thesis.

〒558-8585

--
-------------------------------------
Hyohe MIYACHI
Department of Mathematics,
Osaka City University
3-3-138 Sugimoto, Sumiyoshi-ku,
Osaka city, Osaka, JAPAN
zip code 558-8585
TEL:+81(0)6-6605-2631
FAX:+81(0)6-6605-2515
-------------------------------------

よろしくお願いします。

———————

Speaker: Ievgen Makedonskyi (Kyoto U)
Date & Place: April 20th 2018 (Fri) RIMS room 402 16:30–18:00
Title : Vertex algebras and coordinate rings of semi-infinite flags

The direct sum of irreducible level one integrable representations of
affne Kac-Moody Lie algebra of (affne) type ADE carries a structure of
P/Q-graded vertex operator algebra. There exists a filtration on these
modules due to Kato and Loktev such that the corresponding graded vector
space is a direct sum of global Weyl modules.  The associated graded
space with respect to the dual filtration is isomorphicto the homogenous
coordinate ring of semi-in finite flag variety.  We describe the ring
structure in terms of vertex operators and endowthe homogenous coordinate
ring with a structure of P/Q-graded vertex operator algebra. We use the
vertex algebra approach to derive semiinfinite Pluecker-type relations in
the homogeneous coordinate ring.

R-matrices, Cluster Algebras, and Integral Systems：プログラムのご案内

Infinite Analysis 18 Spring School:
R-matrices, Cluster Algebras, and Integral Systems
のプログラム詳細が決まりましたので、ご案内します。

（２３日15:15〜は場所未定）

プログラム
May 22 (tue)
10:00-11:00 Gekhtman (1)
11:15-12:15 Pylyavskyy (1)
lunch
15:00-16:00 Inoue (1)

May 23 (wed)
10:00-11:00 Pylyavskyy (2)
lunch
13:45-14:45 Inoue (2)
15:15-16:15 Okubo (1) (room:TBA)
16:30-17:30 Gekhtman (2) (room:TBA)

May 24 (thu)
11:15-12:15 Okubo (2)
lunch
13:45-14:45 Gekhtman (3)
15:00-16:00 Pylyavskyy (3)

タイトル
Michael Gekhtman (Notre Dame)
Cluster structures on Poisson-Lie groups

Rei Inoue (Chiba)
Networks on surfaces and integrable systems

Naoto Okubo (Aoyama)
q-discrete Painleve equations and quiver mutation

Pavlo Pylyavskyy (Minnesota)
Zamolodchikov periodicity and integrability (talk 1,2)
R-systems (talk 3)

Moduli spaces of local systems and tensor products of positive representations

みなさま

Algebraic Lie Theory and Representation Theory 2018への

からお申込み下さい。

どうぞよろしくお願い致します。

-- Tue, May 1, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker: Simon Wood (Cardiff U)
Date: Tue, May 01, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: Yang-Baxter equations and symmetric groups

Abstract: The Yang-Baxter equation is a cubic equation in a parameter
dependent endomorphism R of the tensor square of some vector space V.
If R is constant with respect to the parameter and invertible, then
the Yang-Baxter equation is equivalent to the braid relations of the
braid groups, thus defining a representation of the n-th braid group
B_n on the n-th tensor power of V. If, in addition, R squares to 1,
then the defining relations of the symmetric groups are satisfied and
the n-th tensor power of V is furnished with a representation of the
n-th symmetric group. While this is quite a drastic reduction of
complexity from the most general form the of the Young-Baxter equation,
the set of solutions exhibits a lot of interesting structure and up
to a natural notion of equivalence all solutions can be classified.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

２０１８年度の無限可積分系セッション世話人は

が引き継ぎました。よろしくお願いします。

より快諾いただいております.

_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/ Hitoshi Konno
_/ Dept. of Mathematics, Tokyo University of Marine Science and
_/ Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
_/ TEL : +81-(0)3-5245-7455
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

よろしくお願いします。

——————————————————————————————————————
タイトル: 作用素環と共形場理論

2018/04/09 Mon 15:00 - 17:00
2018/04/10 Tue 15:00 - 17:00
2018/04/11 Wed 10:00 - 12:00
2018/04/12 Thu 15:00 - 17:00
2018/04/13 Fri 10:00 - 12:00

カイラル共形場理論を数学的に記述する方法の一つである局所共形ネットの理論
について解説する.これは作用素環論を用いたものであるが，他の同等の方法
である，頂点作用素代数の理論との関係に重点を置く.共形場理論，作用素環，

------------------------------------------------------------------------

よろしくお願いします。

—————————————
Date: 4月6日 (Fri), 16:30--18:00, 2018
Room: Room 402, RIMS
Speaker: Kari Vilonen (Melbourne)
Title: Koszul duality for real groups
Abstract: I will begin by explaining the Langlands/Vogan duality for
real groups. After that I will discuss its categorical version. This
is joint work with Roman Bezrukavnikov.
---------------------------------------------------------------------

-- Tue, Apr 24, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker: Mattia Talpo (Simon Fraser University)
Date:    Tue, Apr 24, 2018, 13:15 - 14:45
Place:    Seminar Room A

Title: A logarithmic McKay correspondence and derived invariance for
parabolic sheaves

Abstract: In this talk I will explain some joint work with Sarah Scherotzke
and Nicolò Sibilla, where we prove a "limit" version of the derived McKay
correspondence in the context of logarithmic geometry. The two sides of the
derived equivalence in our case are given by objects called the "infinite
root stack" and the "valuativization", that correspond to different ways of
enhancing the central fiber of some simple kind of degenerations. Our result
also implies the rather surprising fact that the derived category of parabolic
sheaves on a variety with a normal crossings divisor is invariant under
certain blowups. Along the way I will review some basics about the objects
involved, and try to highlight their relevance to a modern approach to curve
and sheaf-counting theories for singular varieties.
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

http://www.tfc.tohoku.ac.jp/event/4200.html
について、第二報をお送りします。

# これはエープリルフールではありません。
----

Koji Hasegawa at Mathematical Institute, Tohoku University, Sendai JAPAN

クロスポストご容赦ください．

------------------------------------

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

（アファイン）W代数とはDrinfeld-Sokorov reductionによって定義される頂点代数
の族である。本講演ではアファインLie代数の脇本表現から誘導される、一般のW代数
の自由場表示を考える。その時、W代数の脇本表現とも呼べる表現が構成され、自由

sevによって構成された有限W代数におけるParabolic inductionのW代数版が得られる
ことを示す。特にA型の場合ではBrundan-Klshchevのcoproductのchiralizationにな
り、BCD型の特殊な場合ではその類似が発見できる。

------------------------------------

（このメールは複数のメーリングリストに投稿しております。

タイトル:
The universal Poisson deformation space of hypertoric varieties and some
classification results.
アブストラクト:
Hypertoric variety $Y(A, \alpha)$ is a (holomorphic) symplectic variety,
which is defined as Hamiltonian reduction of complex vector space by torus
action.  By definition, there exists projective morphism $\pi:Y(A, \alpha) \to Y(A, 0)$, and for generic $\alpha$, this gives a symplectic resolution
of affine hypertoric variety $Y(A, 0)$.  In general, for conical symplectic
variety and it's symplectic resolution, Namikawa showed the existence of
universal Poisson deformation space of them. We construct universal Poisson
deformation space of hypertoric varieties $Y(A, \alpha)$, $Y(A, 0)$. We will
explain this construction and concrete description of Namikawa-Weyl group
action in this case. If time permits, We will also talk about some
classification results of affine hypertoric variety.  This talk is based on
my master thesis.

I-siteなんばへは，大国町駅が最寄りです。

--

〒599-8531 堺市中区学園町1-1

クロスポストご容赦ください．

------------------------------------

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

シュラム・レヴナー発展(SLE)はブラウン

これにより、イジング模型やパーコレーションを代表とした

を満たすことが特徴である。

ミニマル境界共形場の理論からそれと結合可能なリウヴィル場理論
の相関関数に変化することを示す。

mugenmlメーリングリストの皆様

2020年度日本数学会季期研究所（MSJ-SI 2020）
への応募の呼びかけがありました。

ーーーーーー
2020 年度日本数学会季期研究所（MSJ-SI 2020）テーマ公募

MSJ-SIは日本数学会主催の国際研究集会であり，若手研究者や

ただいま，2020年度開催MSJ-SIのテーマ公募中です．
締切：2018 年 5 月 31 日

ください．また，下記メールアドレスへの事前の問い合わせも

名古屋大学大学院多元数理科学研究科

http://mathsoc.jp/publication/tushin/2204/kaiho224-MSJ-SI2020.pdf

いたします。

【日本語版】
http://www.osaka-u.ac.jp/ja/news/employ/files/20180518jouhoujunkyouju.pdf

【英語版】
http://www.osaka-u.ac.jp/en/news/employ/files/20180518_information.pdf

※JRECINでも公募情報が公開されています。
※数学全分野での公募となっております。
※5月18日（金）必着となっております。

free hyperplane arrangements」

2018年6月11日(月)から6月15日(金)にかけて、数理解析研究所にて研究集会（RIMS共同研究
(公開型)）「Matroids, reflection groups, and free hyperplane arrangements」を開催
いたします。近年組み合わせ論・代数幾何・トポロジーなど様々な観点から注目を集めてい
るマトロイド、古くから研究されている鏡映群や自由超平面配置を主たるトピックとして、

Emanuelle Delucchi (Fribourg)
Graham Denham (West Ontario)
Michael DiPasquale (Oklahoma State)
Misha Feigin (Glasgow)
Simone Marchesi (IMECC-UNICAMP)
Luca Moci (Université Paris 7)
Delphine Pol（北海道大学）
Jean Valles (University of Pau and Pays de l'Adour)

http://www.math.sci.hokudai.ac.jp/~yoshinaga/research/conference/201806RIMSMatroids.html

なにかご質問などありましたら、下記世話人までご連絡ください。

--
Masahiko Yoshinaga
Department of Mathematics,
Hokkaido University,
North 10, West 8, Kita-ku,
Sapporo, 060-0810, JAPAN

みなさま

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊
メーリングリストの皆様，
(English version below)

またポスターセッションも予定しておりますので，ご希望の方は
ホームページの Poster session の項をご確認ください．

ホームページ：http://djalil.chafai.net/wiki/kyoto2018:start

Gérard Ben Arous (to be confirmed) (New-York, USA)
Zhigang Bao (Hong Kong, China)
Alexander Bufetov (Marseille, France)
Laure Dumaz (Paris-Dauphine, France)
Peter Forrester (Melbourne, Australia)
Akihito Hora (Hokkaido, Japan)
Makoto Katori (Chuo/Tokyo, Japan)
Antti Knowles (Genève, Switzerland)
Sho Matsumoto (Kagoshima, Japan)
Taro Nagao (Nagoya, Japan)
Fumihiko Nakano (Gakushuin, Japan)
Todd Kemp (San Diego, USA)
Arno Kuijlaars (Leuven, Belgium)
Justin Salez (Paris-Diderot, France)
Tomohiro Sasamoto (Tokyo Tech, Japan)
Hideki Tanemura (Chiba, Japan)
Yoshimichi Ueda (Nagoya, Japan)
Van Vu (Yale, USA)
Jianfeng Yao (Hong Kong, China)
Horng-Tzer Yau (to be confirmed) (Harvard, USA)

The organizing committee
Djalil Chafaï (Paris-Dauphine, France)
Benoît Collins (Kyoto University, Japan)
Jamal Najim (CNRS & Paris-Est, France)
Tomoyuki Shirai (Kyushu University, Japan)

================================================
International Conference "Random matrices and their applications"

The conference will be held at Kyoto University, Kyoto, Japan,
from May 21 through May 25, 2018, and please make a registration
via this webpage by March 31.  We plan to have a poster session.
Please have a look at "Poster session" section in the webpage
if you would like to give a poster presentation.

Title: "Random matrices and their applications"
Venue: Room 110, Building 3, Departiment of Mathematics, Kyoto University
Date: May 21 -- May 25, 2018
Webpage: http://djalil.chafai.net/wiki/kyoto2018:start

The invited speakers.

Gérard Ben Arous (to be confirmed) (New-York, USA)
Zhigang Bao (Hong Kong, China)
Alexander Bufetov (Marseille, France)
Laure Dumaz (Paris-Dauphine, France)
Peter Forrester (Melbourne, Australia)
Akihito Hora (Hokkaido, Japan)
Makoto Katori (Chuo/Tokyo, Japan)
Antti Knowles (Genève, Switzerland)
Sho Matsumoto (Kagoshima, Japan)
Taro Nagao (Nagoya, Japan)
Fumihiko Nakano (Gakushuin, Japan)
Todd Kemp (San Diego, USA)
Arno Kuijlaars (Leuven, Belgium)
Justin Salez (Paris-Diderot, France)
Tomohiro Sasamoto (Tokyo Tech, Japan)
Hideki Tanemura (Chiba, Japan)
Yoshimichi Ueda (Nagoya, Japan)
Van Vu (Yale, USA)
Jianfeng Yao (Hong Kong, China)
Horng-Tzer Yau (to be confirmed) (Harvard, USA)

Best wishes,

The organizing committee
Djalil Chafaï (Paris-Dauphine, France)
Benoît Collins (Kyoto University, Japan)
Jamal Najim (CNRS & Paris-Est, France)
Tomoyuki Shirai (Kyushu University, Japan)

みなさま

なお，懇親会に参加を希望される方は，下記の通り明日（9日）までに連絡を
お願いいたします．

--

お手数ですが事前に福田 (afukudaあっとshibaura-it.ac.jp) まで

プログラム：
14:00-15:30

ちょっと変わった楕円函数（論）とその応用

16:00-17:30

18:00-19:00
フリーディスカッション

なおセミナー終了後に講演者を交えて懇親会を開く予定です。

ご連絡ください。

Integrable Systems

Institute for High Energy Physics (ロシア、Protvino) にて

International Workshop on Classical and Quantum Integrable Systems
(CQIS-2018)

が２０１8年７月２日〜6日に開かれます。詳しくは

をご覧下さい。

ロシア国立研究大学経済高等学校

-- Mar 27, 2018

Dear all,

I would like to announce the following two Mathematics and String theory seminars
at Kavli IPMU

1)
Speaker: Andrea Appel (University of Edinburgh)
Date:  Tue, Mar 27, 2018, 13:15 - 14:45
Place:  Seminar Room A

Title: Quantum groups and monodromy

Abstract: The monodromy of linear differential equations can be thought
of as an analytic map generalizing the exponential map of a Lie group.
Its computation may be rather cumbersome, but, in the case of certain
very special equations arising in representation theory and mathematical
physics it is possible to obtain an algebraic and seemingly more explicit
description in terms of quantum groups. In the first part of this talk,
I will describe several examples involving both differential and difference
equations, while in the second part I will mainly focus on the monodromy
of the rational Casimir connection, following joint works with
V. Toledano Laredo.

2)
Speaker: Michael Singer (U College London)
Date:  Tue, Mar 27, 2018, 15:30 - 17:00
Place:  Seminar Room B

Title:  Asymptotic geometry of monopole moduli space and the Sen Conjecture

Abstract: The moduli space of (non-abelian, euclidean, SU(2)) monopoles has
been of interest to mathematicians and mathematical physicists since the
mid-1980s. It was proved around that time that the natural L^2 metric is
hyperKaehler and complete; and its role in low-energy dynamics of monopoles
was extensively discussed and analyzed. After the advent of S-duality in
supersymmetric gauge theories in the 1990s, Sen made a striking conjecture
about the spectrum of supersymmetric quantum states on the monopole moduli
spaces. From the mathematical point of view, Sen's conjectures are about
the existence of L^2 harmonic forms on monopole moduli spaces and the
analysis of this problem requires a good understanding of the monopole
metric. I shall describe recent progress on this problem which will at
least prove a part of Sen's conjectures. This is joint work with
Karsten Fritzsch and Chris Kottke.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

を下記の要領で開催しますので，ご案内申し上げます．

・14:00〜15:10　中村　友哉（早稲田大学）
「Lie亜代数と関連する幾何構造」

$C^\infty$-多様体$M$上のLie亜代数(Lie algebroid)とは、接バンドルの一般化であり、

に対する、講演者による一般化を紹介する。

・15:30〜17:30　桑垣　樹（IPMU）
「超局所幾何、深谷圏、ミラー対称性」

ティック幾何（特に深谷圏）と関連しているかについて説明する。また、時間が許せばホ
モロジー的ミラー対称性の証明への応用についても説明する。

「(純粋数学に限らず)若手の研究者にゆっくりと時間をかけて研究の動機や成果等を初歩

とても先鋭化しており、少しでも ...

よろしくお願いします。

———————
Speaker: Shigenori Nakatsuka (U. Tokyo)
Date & Place: March 9th 2018 (Fri) RIMS room 402 16:30–18:00
Title :Geometric construction of integrable Hamiltonian hierarchies
associated wtih the classical affine W-algebras.

Abstract: The Drinfeld-Sokolov hierarchies are integrable Hamiltonian
hierarchies associated with the principal classical affine W-algebras.
Feigin-Frenkel realized these hierarchies geometically using a geometric
interpretation of the free field realization of principal classsical
affine W-algebras. In this talk, we consider a generalization of this
result to some classical affine W-algebras which are not principal. We
also obtain a characterization of the corresponding Hamiltonians as the
set of conservative quantities of some differential equations which are
the affine Toda equations in the principal cases.

うことになりました. ご多忙のところ誠に恐縮に存じますが，貴関係者にお知
らせいただくとともに，適任者をご存じの場合は応募をお勧めくださいますよ
う，お願い申し上げます．

1.公募対象：

2.専門分野：

3.採用予定日：採用決定後，できるだけ早い時期．

4.任期：
（准教授）なし．
（助教）5年．ただし，審査を経て一回に限り再任可（再任期間は5年）．

5. 給与：国立大学法人九州大学教員給与規程による．

6.提出書類：
(1) 履歴書 (写真貼付，署名捺印し，電話番号・電子メール等の連絡先を明記のこと)．

(2) 研究業績リスト（論文，著書，講演，特許，外部資金，その他参考になる

なる資料等を含む)．

(3) 研究業績の説明．

(4) 将来の研究計画．マス・フォア・インダストリを推進する方法等について
も記述すること．

(5) 教育に対する抱負．

(6) ご本人について問い合わせることができる方3名の氏名と連絡先，および
そのうち1名からの推薦状．ただし，推薦状に関しては応募書類とは別便で推

ルやファックスによる推薦状は受け付けません．

7.応募期限：平成30年4月2日（月）必着

8.書類提出先および問い合わせ先：
〒819-0395 福岡市西区元岡744　九州大学マス・フォア・インダストリ研究所

e-mail: kaji  AT  imi.kyushu-u.ac.jp

9.その他：
(1) 応募書類は原則として返却しません．返却を希望される方は，返送先住所
を記して切手を貼った返却用封筒を同封してください．

(2) 選考過程で面接審査を行う場合があります．その場合の交通費は原則とし
て自己負担とします．

(3) マス・フォア・インダストリ研究所については，下記をご参照下さい．
http://www.imi.kyushu-u.ac.jp/

(4) 九州大学では，国際化を推進する観点から，採用後に英語による授業実施
に積極的に取り組むことを求めています．

(5) 「男女雇用機会均等法」第8条（女性労働者に係る措置に関する特例）の

(6) 九州大学では「障害者基本法」，「障害者の雇用の促進等に関する法律」
および「障害を理由とする差別の解消の推進に関する法律」の趣旨に則り，教

（このメールは複数のメーリングリストに投稿しております。重複してお受け取りの際は
ご容赦ください。）

タイトル：Braid group actions from categorical symmetric Howe duality on
deformed Webster algebras
アブストラクト：(gl(m),sl(2)) symmetric Howe双対を用いてKhovanov-Laudaによって導

への2関手の構成についてお話しする。この2関手を用いて、組紐関係式をみたす対象を一般化
Webster代数の両加群圏に自然と構成されることもお話ししたい。

I-siteなんばへは，大国町駅が最寄りです。

--
Yoshiyuki Kimura
Faculty of Liberal Arts and Sciences
Osaka Prefecture University
1-1 Gakuen-cho, Nakaku,
Sakai, Osaka 599-8531,
Japan
Research map: http://researchmap.jp/ysykmr/

============================================================================
SEMINAR INFORMATION
============================================================================

パンルヴェ方程式の導出に必要な部分のみを取り出すと、行列型の微分方程式で
パンルヴェ方程式と同値なものが得られる。このとき適切な設定を選ぶことによって

きる。

----------------------------------

HP：http://www.math.kobe-u.ac.jp/HOME/n-proj/HP-integrable/
============================================================================

＃ 重複して受け取られた場合はご容赦ください．

※ 3/12 (Mon) の夕食会ですが，予約の都合上，
*** 3/3 (Sat) までに***

です．

-----------------------------------

Finite Groups, VOAs, and Related Topics 2018

プログラムは以下の集会サイトよりご確認ください．

https://r.gnavi.co.jp/a538505/

*** 以下のフォームより事前に参加登録 *** をお願いいたします．

フォームからの登録がうまく行かない場合には，佐垣まで直接メールにて

sagakiあっとmath.tsukuba.ac.jp

になります．夕食会のみの参加も歓迎いたします．

--
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

※ 重複して受け取られた場合はご容赦ください．

その際はどうぞよろしくお願いいたします．

--
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

==========================================================

アブストラクト:

T. Tanisaki, Modules over quantized coordinate algebras and PBW-bases.
J. Math. Soc. Japan 69 (2017), 1105-1156
の内容をお話しします． 具体的には，既約表現の誘導関手による構成，

==============================================================

OCAMI談話会 web page:
http://www.sci.osaka-cu.ac.jp/OCAMI/activities/colloquium/colloquium.html

◆　16:00から理学部E棟４階エレベータ前リフレッシュ・スペース
(大講究室 E408の前)にてティータイムを行います。

International Symposium "Rikkyo MathPhys 2018"

また，会場も昨年度までとは別の建物となっています。

Babak Haghighat (Tsinghua University)
Yasuaki Hiraoka (Tohoku University)
Yu-tin Huang (NTU)
Ivan Ip (Kyoto University)
Katsushi Ito (Tokyo Institute of Technology)
Kohei Iwaki (Nagoya University)
Norio Konno (Yokohama National University)
Tatsuhiro Misumi (Akita University)
Daisuke Yamakawa (Tokyo Science University)
Masahito Yamazaki (Kavli IPMU)

をご覧いただければ幸いです。

なお、準備の都合上、参加ご希望の方は、上のURLのフォームにて、
お名前、所属等をお知らせくださるようお願い申し上げます。
3月13日に懇親会を予定しております。

----------------------------------------------------------------------------

Ikenmeyer さんはこの方面でもっとも活躍されている研究者の一人ですが，数学・

GCT Seminar at Univ. Tokyo
Speaker: Christian Ikenmeyer (Max-Planck-Institut für Informatik)
"Representation theory and algebraic geometry in geometric complexity theory"
Date: Tuesday, March 6, 14:00 - 15:00
Venue: Graduate School of Math Sciences, Univ. Tokyo, Room 126.

GCTセミナー＠東京大学数理

"Representation theory and algebraic geometry in geometric complexity theory"

なお，この後，

Computation Theory -- Geometric Complexity Theory and Related Topics —，

でも集会・セミナーが予定されています．下記添付ファイルをご覧下さい．

*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*

Kyo Nishiyama

〒252-5258 相模原市中央区淵野辺 5-10-1
研究室: L棟5階 L513
Tel. 042-759-6269  Fax. 6532
http://www.gem.aoyama.ac.jp/~kyo/
*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*

****************

Workshop on Mathematics in Computation Theory
-- Geometric Complexity Theory and Related Topics --

Date: March 7—9 2018.
Place: 東北大学情報科学研究科研究棟

Supported by Grant-in-Aid for challenging Exploratory Research 17K19954

Program
March 7 (Wed) 　情報科学研究棟2階中講義室（一部　大講義室に変更の可能性あり）
10:15 Opening and Introduction
Takeshi Tokuyama (Tohoku University)
10:30 -12:00
Christian Ikenmeyer (MPII, Germany)
"Geometric complexity theory: An ambitious approach towards P versus NP"
12:00—13:30 Lunch Break
13:30 – 15:00
Satoru Iwata (U. Tokyo)
Matroid Parity Problems (tentative title)
15:00- 15:30 Break
15:30 –16:00
Takeshi Tokuyama (Tohoku U)
Enumeration on Squared Ice model
16:00- 17:00
Matias Korman　（Tohoku U）
Title TBD
Andre van Renssen (NII)
Title TBD

March 8 (Thr) 　情報科学研究科研究棟2階中講義室
10:00- 12:00
Discussion and work together.
13:00 -14:00
Christian Ikenmeyer (MPII)
"Representation theory and algebraic geometry in geometric complexity theory"
14:00-14:30
Break
14:30—16:00
TBD

March 9
10:00---12:00  情報科学研究科研究棟8階演習室
Discussion about future plan of GCT project
Contact: Takeshi Tokuyama (tokuyama  AT  dais.is.tohoku.ac.jp)

よろしくお願いします。

———————

Speaker: Takahiro Nagaoka (Kyoto U)
Date & Place: February 23trd 2018 (Fri) RIMS room 402 16:30–18:00
Title : The universal Poisson deformation space of hypertoric varieties.

Hypertoric variety $Y(A, \alpha)$ is a (holomorphic) symplectic variety,
which is defined as Hamiltonian reduction of complex vector space by torus
action. By definition, there exists projective morphism $\pi:Y(A, \alpha) \to Y(A, 0)$, and for generic $\alpha$, this gives a symplectic resolution
of affine hypertoric variety $Y(A, 0)$. In general, for conical symplectic
variety and it's symplectic resolution, Namikawa showed the existence of
universal Poisson deformation space of them.  We construct universal Poisson
deformation space of hypertoric varieties $Y(A, \alpha)$, $Y(A, 0)$.  We
will explain this construction and concrete description of Namikawa-Weyl
group action in this case. If time permits, We will also talk about some
classification results of affine hypertoric variety. This talk is based on
my master thesis.

みなさま

お誘い合わせの上ご参加下さい。

---------------

Title: Topological phases and anomalies in relativistic quantum field theories

と思う。
Abstract: In the recent years, we have seen a great development in the
understanding of topological phases and anomalies in the context of condensed
matter physics. These new insights can also be usefully applied to the study
of quantum field theory on the high energy physics side. In this lecture we
will give a very elementary review of this subject.

10:00--11:30（90分）　講義
11:30--13:00（90分）　お昼休み
13:00--14:30（90分）　講義
14:30--14:45（15分）　休憩
14:45--16:15（90分）　講義
---------------

（重複してお受け取りの際はご容赦ください）

Algebraic and Enumerative Combinatorics in Okayama (AECO)
Date: February 19 - 23, 2018.
の懇親会を 2 月 20 日（火）に開催するとお伝えしましたが、都

日時：2 月 21 日（水）18:30 〜 20:30
場所：リーセントカルチャーホテル 4F ベネチア
料金：5,500 円（飲み物：ビール・日本酒・ソフトドリンクを含む）
と変更させていただきたいと思います。直前の変更で申し訳ありま
せん。（なお、場所、料金には変更ありません。）

ありますので、参加を希望される方は、2 月 17 日（土）までに、
nu+okayama2018  AT  shinshu-u.ac.jp
まで、参加希望の旨をお知らせください。また、菜食主義、アレル
ギーなどの要望がございましたら、一緒にお知らせください。

--------------------< 返信フォーム >--------------------

2 月 21 日の懇親会   参加

(                         )
--------------------------------------------------------

また、代わりに Conference Lunch を
日時：2 月 20 日（火）12:00 〜 13:00
場所：Terrace Cafe（岡山大学構内）
に行います。こちらは前日の 2 月 19 日 (月) に希望を取ります
ので、到着が遅れる方はメールを頂けたら幸いです。

だければば幸いです。

Ian Le氏によるセミナーも行われます。

よろしくお願いします。

——————————————

Date & Place: February 16th 2018 (Fri) RIMS room 402 15:45–16:45
Title : An introduction to higher Teichmuller theory

Abstract : I will speak about recent joint work with Alexander Shapiro in
which we develop a cluster realization of the quantum group U_q(sl(n))
using quantized moduli spaces of framed local systems on marked surfaces.
I will also discuss the notion of a positive representation of a quantum
cluster algebra, and explain how the positive representations of U_q(sl(n))
introduced by Frenkel and Ip can be studied in the cluster algebra framework.
——————————————

Speaker: Alexander Shapiro (UC Berkeley)
Date & Place: February 16th 2018 (Fri) RIMS room 402 17:00–18:00
Title : An introduction to higher Teichmuller theory

Abstract :Igor Frenkel and Ivan Ip conjectured that positive representations
of quantum groups are closed under tensor products. This conjecture happens
to be closely related to the so-called modular functor conjecture by Fock and
Goncharov. I will speak about joint works with Gus Schrader (some of which are
works in progress) where we prove the above conjectures.

よろしくお願いします。

———————
Speaker: Ian Le (Perimeter Institute)
Date & Place: February 16th 2018 (Fri) RIMS room 402 14:00–15:30
Title : An introduction to higher Teichmuller theory

Abstract : Let S be a topological surface. Teichmuller space parameterizes
the different ways of giving S the structure of a Riemann surface.
Uniformization tells us that any Riemann surface can realized as a quotient
of the upper-half-plane by a subgroup of PSL(2,R). Thus Teichmuller space
to be viewed as a space of representations of the fundamental group of S
into PSL(2,R). We will explain how cluster algebras and the theory of total
positivity give an approach to Teichmuller theory which recovers classical
ideas (like hyperbolic geometry, measured laminations, and quadratic
differentials) while also permitting a generalization to PSL(n,R).

お知らせいたします：
http://www.ms.u-tokyo.ac.jp/~noboru/knot_alg_geom2018.html

=========

noboru[at]ms.u-tokyo.ac.jp

（[at]を＠に変えてください。）
=========

# 重複して受け取られた場合はご容赦ください。

（参加登録は不要です。）

Pramod Achar
Shun-Jen Cheng
Terry Gannon
Naoki Genra
Yi-Zhi Huang
Yasuyuki Kawahigashi
Toshiro Kuwabara
Ching Hung Lam
Martina Lanini
Shotaro Makisumi
Fedor Malikov
Antun Milas
Masahiko Miyamoto
Sven Möller
Takahiro Nishinaka
Ryo Sato
Bailin Song
Anne Taormina
Yongchang Zhu

１６：００までに終了する予定です。

Organizers:
Tomoyuki Arakawa
Peter Fiebig
Nils Scheithauer
Katrin Wendland
Hiroshi Yamauchi

-- Patricio Gallardo and Sara Muhvic -- Mar 6, 2018

Dear all,

I would like to announce the following 2 Mathematics and String theory seminars
at Kavli IPMU.

1) Speaker: Patricio Gallardo (U of Washington)
Date:  Tue, Mar 06, 2018, 13:30 - 15:00
Place:  Seminar Room A

Title:  On double covers and their degenerations

Abstract: We discuss different compactifications of the moduli space of smooth
plane curves, explicit descriptions of the singular objects they parametrize,
and applications for understanding the degenerations of double covers
branching along them.

2) Speaker: Sara Muhvic    (Warwick U)
Date:  Tue, Mar 06, 2018, 15:30 - 17:00
Place:  Seminar Room B

Title: G-Hilb and crepant resolutions of certain abelian orbifolds
in dimension 4

Abstract: Let G \subset Sl(4,\CC) be a maximal diagonal subgroup of exponent r.
In this talk, I will describe the G-Hilbert scheme G-Hilb(C4) through its toric
fan and show how it can be used to construct "special" crepant resolutions of
the quotient variety \CC^4/ G. I will also discuss whether these crepant
resolutions could be interpreted as the moduli spaces \mathcal{M}_\theta of
\theta-stable G-constellations.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

http://www.tfc.tohoku.ac.jp/event/4200.html
について、第一報をお送りします。

----

Koji Hasegawa at Mathematical Institute, Tohoku University, Sendai JAPAN

※ 重複して受け取られた場合は，ご容赦ください．

----------------------- Original Message -----------------------
Dear professor Sagaki,

I am writing to inform you about our upcoming workshop and conference
"Interactions of quantum affine algebras with cluster algebras, current
algebras and categorification", in honor of Vyjayanthi Chari's 60th birthday.
It will be held at the Catholic University of America, Washington DC,
from June 2 to June 8. Further details can be found at

https://quantumaffine2018.catholic.edu

Registration is now open (see https://quantumaffine2018.catholic.edu/
QAAREGISTRATION.html).

We would greatly appreciate if you could circulate the news/website with any
of your colleagues, students and postdocs interested in representation theory.

The conference is partially funded by the NSF and some travel support will be
available for participants, with the priority given to graduate students,
and persons from group which are underrepresented in mathematical sciences are
particularly encouraged to apply. The deadline for funding applications is
April, 15.

Sincerely,
Jacob Greenstein

--------------------- Original Message Ends --------------------
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

みなさま

ぜひご参加いただければと思います．

--

お手数ですが事前に福田 (afukudaあっとshibaura-it.ac.jp) まで

プログラム：
14:00-15:30

ちょっと変わった楕円函数（論）とその応用

16:00-17:30

18:00-19:00
フリーディスカッション

なおセミナー終了後に講演者を交えて懇親会を開く予定です。

ご連絡ください。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

おりました。訂正とお詫びを申し上げます。

【誤】
nu+okayama2018  AT  shinsyu-u.ac.jp.

【正】
nu+okayama2018  AT  math.shinshu-u.ac.jp

We are sorry that I cited a wrong email address in my last email:
Our email address is nu+okayama2018  AT  shinsyu-u.ac.jp.

Our correct email address is nu+okayama2018  AT  math.shinshu-u.ac.jp.

Algebraic and Enumerative Combinatorics in Okayama (AECO)

Date: February 19 - 23, 2018.
Place: Graduate School of Natural Science and Technology, Building No.1.

つきましては、ホテル側の要請で３日前までに懇親会参加者数を

nu+okayama2018  AT  shinsyu-u.ac.jp.

Dear participants,

The participants do not need any registration to attend this conference.
However, we need to know the number of people who attend
the banquet which will be held on February 20:

Date:February 20 (Tue) 18:00 - 20:00
Place:Recent Culture Hotel, 4F, Room Venetia
Food:Japanese cuisine
Price:5,500JPY (including beer, Japanese sake and nonalcoholic drinks)

If you would like to attend the banquet, please let us know
by email before February 16 (Fri). The hotel request us to fix the number
of attendants to the banquet 3 days before it.
If you have special demands, for example, vegetarian foods,
Halal foods or special allergy, please tell us your request by email.
Our email address is nu+okayama2018  AT  shinsyu-u.ac.jp.
We are very glad if this banquet stimulates the discussions between
participants.

Best regards,

Masao Ishikawa (Okayama University)

--
Masao Ishikawa
Department of Mathematics, Faculty of Science, Okayama University

=========

noboru[at]ms.u-tokyo.ac.jp

（[at]を＠に変えてください。）
=========

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Algebraic and Enumerative Combinatorics in Okayama (AECO)

Date: February 19 - 23, 2018.
Place: Graduate School of Natural Science and Technology, Building No.1.

つきましては、ホテル側の要請で３日前までに懇親会参加者数を

nu+okayama2018  AT  shinsyu-u.ac.jp.

Dear participants,

The participants do not need any registration to attend this conference.
However, we need to know the number of people who attend
the banquet which will be held on February 20:

Date:    February 20 (Tue) 18:00 - 20:00
Place:    Recent Culture Hotel, 4F, Room Venetia
Food:    Japanese cuisine
Price:    5,500JPY (including beer, Japanese sake and nonalcoholic drinks)

If you would like to attend the banquet, please let us know
by email before February 16 (Fri). The hotel request us to fix the number
of attendants to the banquet 3 days before it.
If you have special demands, for example, vegetarian foods,
Halal foods or special allergy, please tell us your request by email.
Our email address is nu+okayama2018  AT  shinsyu-u.ac.jp.
We are very glad if this banquet stimulates the discussions between
participants.

Best regards,

Masao Ishikawa (Okayama University)

--
Masao Ishikawa
Department of Mathematics, Faculty of Science, Okayama University

いました。正しくは
です。申し訳ありません。
どうぞよろしくお願いいたします。

Algebraic Lie Theory and Representation Theory 2018について、アナウンス
させて頂きます。

この研究集会は、2014年度まで「代数群と量子群の表現論研究集会(RAQ)」として運営され
てきたものを、研究対象を広げる意味で2015年度からタイトルを変えて開催しています.

に概説講演をお願いしました。

つきましては、3月末を締切として、一般講演を募集致します。もちろん、大学院生による

ォームをご利用下さい。また、他薦の場合は、下記の世話人のメールアドレスまで直接お

どうぞよろしくお願い致します。

Higher Structures and Quantisation -- March 20-22, 2018

Dear all,

I would like to announce a series of lectures on Higher structures and
quantisation at Kavli IPMU organised by Andrew Macpherson. The invited
speakers are Bertrand Toen, Gabriele Vezzosi, Aaron Mazel-Gee, and
Isamu Iwanari. For more details and precise schedule please refer to
the conference webpage

http://www.stashproject.org/conf.html

The webpage has a link with a Doodle pole for registration. It is not
necessary, but it would be very helpful if those who are planning to
attend register.

-----------------------------

Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

クロスポストご容赦ください．

------------------------------------

【1件目】

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

サイン二乗変形(SSD)とは、量子系のハミルトニアンの局所的エネルギースケールを、
サイン二乗関数にしたがって空間的方向に変調させる変形操作である。SSDにより、一様

ハミルトニアンへと変形される。しかしながら、空間次元１次元で系が臨界的な場合には、
この変形後のハミルトニアンの基底状態は、変形前の一様周期的な基底状態からほとんど

スピン鎖や横磁場Ising模型においては、両者の基底状態が厳密に一致することを示して
いる[1,2,3]。また、ディラック・フェルミオン系や一般の(1+1)次元の共形場理論につい
ても、適切にSSDを定義すれば、やはり一様周期系とSSD系の基底状態が一致するという

の結果についても紹介する。

[1] H. Katsura, J. Phys. A: Math. Theor. 44, 252001 (2011).
[2] H. Katsura, J. Phys. A: Math. Theor. 45, 115003 (2012).
[3] I. Maruyama, H. Katsura, T. Hikihara, Phys. Rev. B 84, 165132 (2011).
[4] K. Okunishi and H. Katsura, J. Phys. A: Math. Theor. 48, 445208 (2015).
[5] S. Tamura and H. Katsura, Prog. Theor. Exp. Phys 2017, 113A01 (2017).

【2件目】

URL：http://www.ms.u-tokyo.ac.jp/seminar/infana/index.html

よいクラスの頂点作用素超代数の表現の指標はモジュラー不変性という顕著な性質を示す．
この性質の応用として，中心電荷がc_{p,1} = 3(1-2/p)であるN=2頂点作用素超代数のフ
ュージョン則は，モジュラーS行列Verlinde公式によって計算されることが知られている
(p,p')を用いて中心電荷がc_{p,p’}:=3(1-2p’/p)と表わされる場合に，然るべき意味で
モジュラー不変性を示す新たなN=2頂点作用素超代数の表現族を紹介する．また，Creutzig
-Ridoutによって提案されたVerlinde公式の一般化を踏まえて，フュージョン則の計算へ
の応用を議論する．

------------------------------------

よろしくお願いします。

————————
Speaker: Myungho Kim (Kyung Hee University)
Date & Place: February 2nd 2018 (Fri) RIMS room 402 16:30–18:00
Title : Monoidal categorification of cluster algebras

Abstract : In this talk, I will explain our work on the monoidal
categorification of the quantum coordinate ring $A_q(n(w))$ of the unipotent
subgroup associated with a symmetric Kac-Moody algebra $g$ and an element
$w$ of the Weyl group. This is a joint work with Seok-Jin Kang,
Masaki Kashiwara, and Se-jin Oh.

The notion of monodical categorification of cluster algebras was introduced
by Hernandez and Leclerc: an abelian monodical category $C$ is called a
monodical categorification of a cluster algebra $A$ if the Grothendieck
ring of $C$ is isomorphic to $A$ and the cluster monomials of $A$ belong
to the classes of real simple objects of $C$.

The existence of a monodical categorification of a cluster algebra $A$
implies several nice properites of $A$ in a natural way, for example, the
positivity of the coefficients of the expansion of cluster monomials with
respect to an arbitrary cluster.

Our main result is that a subcategory $C_w$ of category of finite-
dimensional graded modules over the symmetric quiver Hecke algebra is a
monodical categorification of the (quantum) cluster algebra $A_q(n(w))$.

Combining the results of Khovanov-Lauda, Rouquier and Varagnolo-Vasserot,
we conclude that the cluster monomials of $A_q(n(w))$ belongs to the upper
global basis (dual canonical basis).  It answers the conjecture by Kimura
and Geiss-Leclerc-Schroer, which can be also regarded as a sharpened
version of a question asked by Fomin-Zelevinsky.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Dear colleagues,

The program and abstracts (the final version)
of the following conference is now available:

Algebraic and Enumerative Combinatorics in Okayama
http://www.math.okayama-u.ac.jp/~mi/comb2018/

Date: February 19 - 23, 2018.
Place: Graduate School of Natural Science and Technology Building No.1.
The N24 building in the Tsushima campus map:

http://www.math.okayama-u.ac.jp/~mi/comb2018/pdf/program.pdf
http://www.math.okayama-u.ac.jp/~mi/comb2018/pdf/abstracts.pdf

Access: Okayama University is 3km north to Okayama JR station.
Take Okaden Bus No.47 from the west exit of the station
and get off at the bus stop named West Gate of Okayama U.
(Okadai-Nishimon). The final destination of the bus is
Okayama University of Science which is NOT Okayama University.
It takes 7 minutes from the station to the west gate.

No registration is required to participate in this conference.
We welcome anybody to come and join in this conference,
which will make it very active and fruitful.
If you have any questions or requests, please feel free to

We are looking forward to seeing you in Okayama.

Masao Ishikawa (Okayama University)
--
Masao Ishikawa
Department of Mathematics, Faculty of Science, Okayama University

Tony Yue-Yu (Universite Paris-Sud) -- Feb 27, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU

Speaker: Tony Yue-Yu (Laboratoire de Mathematiques d'Orsay, Universite Paris-Sud)
Date:  Tue, Feb 27, 2018, 15:30 - 17:00
Place:  Seminar Room B

Title:  The Frobenius structure conjecture in dimension two

Abstract: The Frobenius structure conjecture is a conjecture about the
geometry of rational curves in log Calabi-Yau varieties proposed by
Gross-Hacking-Keel. It was motivated by the study of mirror symmetry.
It predicts that the enumeration of rational curves in a log Calabi-Yau
variety gives rise naturally to a Frobenius algebra satisfying nice
properties. In a joint work with S. Keel, we prove the conjecture in
dimension two. Our method is based on the enumeration of non-archimedean
holomorphic curves developed in my thesis. We construct the structure
constants of the Frobenius algebra directly from counting non-archimedean
holomorphic disks. If time permits, I will also talk about compactification
and extension of the algebra.

-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

ちしております．

=======================================================

また，4次元の場合の最近の結果も報告する．
=======================================================

http://www.josai.ac.jp/education/gra_science/mathematics_major/（次行に続く）
workshop_seminar_lecture/seminar/seminar.html

ちしております．

=======================================================

ち上がるものを岡本ー坂井の初期値空間という．

また，4次元の場合の最近の結果も報告する．
=======================================================

http://www.josai.ac.jp/education/gra_science/mathematics_major/（次行に続く）
workshop_seminar_lecture/seminar/seminar.html

# いくつかの ML に投稿しております．
# 案内を重複して受け取られた場合はご容赦ください．

Finite Groups, VOAs, and Related Topics 2018

プログラムは以下の集会サイトよりご確認ください．

https://r.gnavi.co.jp/a538505/

*** 以下のフォームより事前に参加登録 *** をお願いいたします．

フォームからの登録がうまく行かない場合には，佐垣まで直接メールにて

sagakiあっとmath.tsukuba.ac.jp

になります．夕食会のみの参加も歓迎いたします．

--
Daisuke SAGAKI
Division of Mathematics
Faculty of Pure and Applied Sciences
University of Tsukuba
Tsukuba, Ibaraki 305-8571, Japan

ご興味のある方はご参集ください。

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Dear colleagues,

A tentative program and abstracts of the following conference is now
available at http://www.math.okayama-u.ac.jp/~mi/comb2018/
The final program will come soon.

Algebraic and Enumerative Combinatorics in Okayama (AECO)

Date: February 19 - 23, 2018.
Place: Graduate School of Natural Science and Technology, Building No.1.
The N24 build of the Tsushima campus map at

Webpage: http://www.math.okayama-u.ac.jp/~mi/comb2018/

The aim of this conference is to allow participants an opportunity
to discusses recent developments and new ideas in
algebraic and enumerative combinatorics and related areas
such as representation theory, algebraic geometry and statistical physics.
Topics will include (but are not limited to):
plane partitions, P-partitions, alternating sign matrices,
perfect matchings, and symmetric functions.

Access: Okayama University (West Gate) is 7 minute distance
by Okaden No. 47 bus which departs from the west gate of
Okayama JR railway station. The conference will take place
at the second floor of the Graduate School of Natural Science
and Technology, Building No.1:

No registration is required to participate in this conference.
We welcome anybody to come and join in this conference,
which will make it very active and fruitful.
If you have any questions or requests, please feel free to

The Tsushima College residence is still available
at the rate 2800JPY/night. If you would like to stay
at the residence, please conatct us.
The Recent Culture hotel is the closest one to Okayama
University. You can walk to the conference (maybe 15 minutes).
It is available at 6800JPY/night if you tell them that
you will attend this conference at Okayama University.

We are looking forward to seeing you in Okayama.

Masao Ishikawa (Okayama University)
--
Masao Ishikawa
Department of Mathematics, Faculty of Science, Okayama University

======================================================

======================================================

****プログラム**************

1月19日（金）
13：30〜14：30 長尾 秀人（明石高専）
加法差分パンルヴェ方程式の超幾何型特殊解
15：00〜16：00 竹井 優美子（神戸大）
超幾何微分方程式の Voros 係数の位相的漸化式による表示
16：30〜17：30 関口 次郎（東京農工大）
３次元の一般化されたWDVV方程式の特殊解について

（18:30〜　懇親会）

1月20日（土）
09：30〜10：30 眞野 智行（琉球大学）
パンルヴェ方程式と平坦座標
11：00〜12：00 斎藤 恭司（東京大学IPMU）
原始形式の周期写像、鏡像対称性そしてBridgeland安定性条件の空間
13：30〜14：30 大山 陽介（徳島大）
q-超幾何級数の総和法
15：00〜16：00 鹿野 忠良（Institut Vercors）
Airy の浅水波が津波の正体である：津波の古典解析

Webサイト
http://math0.pm.tokushima-u.ac.jp/~ohyama/seminar.html
ポスター
http://math0.pm.tokushima-u.ac.jp/~ohyama/seminar/201801.pdf

■追記

http://math0.pm.tokushima-u.ac.jp/~ohyama/sato/index_sato_mikio.html
オンラインで読める論文はリンクしてあり、読めないものはCiNiiなどに
リンクして論文にアクセスしやすくしてあります。

---
〒770-8506　徳島市南常三島町2-1

R-matrices, Cluster Algebras, and Integrable Systems

First Announcement of IA18 Spring School:
R-matrices, Cluster Algebras, and Integrable Systems

ご案内をいたします。

Infinite Analysis 18 Spring School
R-matrices, Cluster Algebras, and Integrable Systems

Date: May 22(tue) - 24(thu), 2018
Place: Graduate School of Mathematics, Nagoya University

Lecturers:
Michael Gekhtman (Notre Dame)
Pavlo Pylyavskyy (Minnesota)
Rei Inoue (Chiba)
Naoto Okubo (Aoyama)

Organizers: Atsuo Kuniba (Tokyo), Tomoki Nakanishi (Nagoya),

Contact: Tomoki Nakanishi (nakanisiあっとmath.nagoya-u.ac.jp)

プログラムなどの詳細は以下のサイトで随時更新をいたしますので、ご覧ください。

Mauro Porta (University of Strasbourg) -- Feb 13, 2018

Dear all,

I would like to announce the following Mathematics and String theory seminar
at Kavli IPMU.

Speaker: Mauro Porta (University of Strasbourg)
Date: Tue, Feb 13, 2018, 13:15 - 14:45
Place: Seminar Room A

Title: HKR theorems in analytic geometry

Abstract: In this talk I will survey recent advances in derived geometry.
Building on the framework of derived analytic geometry introduced in my
thesis, I will explain how to obtain an S^1-equivariant version of the
Hochschild-Kostant-Rosenberg theorem for analytic spaces. Here analytic
means at the same time complex analytic and non-archimedean analytic,
and an analytic space is understood to be possibly singular (and, in fact,
possibly derived).
-----------------------------
Todor Eliseev Milanov
Associate Professor
Kavli IPMU, Japan

ご関心のある方はぜひご参加ください．

------------------------------------

Vertex algebras and topology.

1. Boson-fermion correspondence.Integrable representations of Lie algebra sl(2)^.
2. Monomial base in the integrable modules.Characters in the simplest cases.
3. Brion theorem for complex polytopes. Weyl character formula as a consequence
of Brion.
4. Rodgers-Ramanujan and Gordon identity as a consequence of Brion.
5. Constructions of vertex algebras.Exstensions of W-algebras.
6. Vertex algebras and 4-dimensional manifolds.
------------------------------------

++++++++++++++++++++++++++++++
2017年度 第９回セミナー

（これをWirtinger積分と呼ぶ）．この結果に触発されて講演者は積分表示の高次元化を

と因子配置のコホモロジーを調べる必要がある．このうち非常によく研究されてきたのは，

ものである．これに比べ，非有理的多様体上の因子配置についてはこれまであまり研究さ
れて来なかったのではないかと思われる．Wirtinger積分が楕円曲線上の点配置に関する

ので本講演ではそれを紹介したい．時間があればツイストホモロジー類の構成にも触れる

++++++++++++++++++++++++++++++

タイトル：

アブストラクト：
ヘッセンバーグ多様体は旗多様体の部分多様体であり，幾何・トポロジー・組み合わせ論・

るヘッセンバーグ多様体を観察してみると，その幾何やトポロジーは正則元の取り方によ
って大きく変わるようにも見えますが，実は共通する幾何学的な性質も持っています．こ
の講演では，正則ヘッセンバーグ多様体の族の性質を観察することで，何が共通する性質
なのかを説明したいと思います．また，応用として，旗多様体のホモロジーにおいて正則
ヘッセンバーグ多様体が定めるサイクルが正則元の取り方によらないことを見たいと思い
ます．この研究は，復旦大学の曽昊智さんと東京工業大学の藤田直樹さんとの共同研究で
す．

この度下記の通り紀尾井町数理セミナーを開催致します．

お待ちしております．

=======================================================

filtered regular D-module と filtered local systemの間の圏同値について解説し，

=======================================================

http://www.josai.ac.jp/education/gra_science/mathematics_major/workshop/index_copy2.html

また次回は

を予定しております．

Dear Colleagues,

It is our great pleasure to make the second announcement of the 13th edition
of the InternationalConference on Symmetries and Integrability of Difference
Equations (SIDE 13), during 11-17 November 2018, in Fukuoka, Japan.

Please post and/or circulate the attached announcement freely.

Yours Sincerely,
====================================================
Kenji Kajiwara, Chair, Organizing Committee of SIDE 13
Institute of Mathematics for Industry, Kyushu University
744 Motooka, Fukuoka 819-0395, JAPAN
====================================================

13TH INTERNATIONAL CONFERENCE ON SYMMETRIES AND INTEGRABILITY OF DIFFERENCE
EQUATIONS (SIDE 13)

SECOND ANNOUNCEMENT
7 January, 2018

Venue: JR Hakata City Conference Rooms, Fukuoka, Japan
Dates: Sunday 11 November (arrival day) to Saturday 17 November 2018
(departure day)

SIDE 13 is the thirteenth in a series of biennial conferences devoted to
Symmetries and Integrability of Difference Equations, and in particular to:
ordinary and partial difference equations, analytic difference equations,
orthogonal polynomials and special functions, symmetries and reductions,
discrete differential geometry, integrable discrete systems on graphs,
integrable dynamical mappings, (discrete) Painlevé equations, integrability
criteria, Yang-Baxter type equations, cluster algebras, difference Galois
theory, quantum mappings, quantum field theory on space-time lattices,
representation theory, combinatorics, numerical models of differential
equations, discrete stochastic models and other related topics.

The first SIDE conference took place in Estérel, Quebec, Canada, May 22-29,
1994. The event was so successful that it gave rise to the series of
conferences since held in the United Kingdom, Italy, Japan, France, Finland,
Germany, Australia, Bulgaria, China, India and Canada.

SIDE 13 will take place at JR Hakata City Conference Rooms, in Fukuoka, Japan,
from November 11, 2018 (arrival day) to November 17, 2018 (departure day).
JR Hakata City is located within JR Hakata Station in Fukuoka, and is just
five minutes travel from Fukuoka Airport by subway. Fukuoka is one of the
oldest historic cities in Japan and famous for its excellent local food.
Transportation to and from other major cities in Japan is frequent and
reasonably fast: there are more than 60 flights per day from Tokyo (1:30),
and more than 70 JR Shinkansen trains per day from Osaka (typically 2:30).

Organizing Committee

* Kenji Kajiwara (Chair, IMI, Kyushu University, Fukuoka)
* Saburo Kakei (Rikkyo University, Tokyo)
* Ken-ichi Maruno (Waseda University, Tokyo)
* Nozomu Matsuura (Fukuoka University, Fukuoka)
* Masatoshi Noumi (Kobe University, Kobe)
* Daisuke Takahashi (Waseda University, Tokyo)
* Tetsuji Tokihiro (University of Tokyo, Tokyo)
* Satoshi Tsujimoto (Kyoto University, Kyoto)
* Ralph Willox (University of Tokyo, Tokyo)
* Yasuhiko Yamada (Kobe University, Kobe)

* Frank Nijhoff (Chair, Leeds)
* Alexander Bobenko (TU Berlin)
* Lucia Di Vizio (Univ. de Versailles-St Quentin)
* Basil Grammaticos (CNRS, Paris VII)
* Rei Inoue (Chiba)
* Jarmo Hietarinta (Turku)
* Nalini Joshi (Sydney)
* Kenji Kajiwara (Kyushu)
* Decio Levi (Rome TRE)
* Vassilis Papageorgiou (Patras)
* Junkichi Satsuma (Musashino University)
* Wolfgang Schief (UNSW)
* Yuri Suris (TU Berlin)
* Claude Viallet (CNRS, Paris VI)
* Pavel Winternitz (CRM, Montreal)
* Da-jun Zhang (Shanghai University)

Scientific Committee

* Ralph Willox (Chair, Tokyo)
* Wolfgang Schief (UNSW)
* Lucia Di Vizio (Versailles-St Quentin)
* Decio Levi (Rome TRE)
* Satoshi Tsujimoto (Kyoto)
* Rei Inoue (Chiba)
* Takao Suzuki (Kinki University)

It is expected that the number of participants to the meeting will exceed
the number of available slots for talks and posters. The scientific committee
will therefore have to make a selection of proposed presentations. Applicants
will be informed of the decision of the scientific committee by August 10 2018.

In general, all talks will be allotted 30 minutes (including discussions).
A poster session will be organized and each presenter will have a short
two minute oral presentation to advertise the poster. Poster Awards will be
organized for students and early career researchers.

There will be no parallel sessions.

Instead of publishing proceedings we plan to arrange a book of abstracts
(1 page each in A4 size).

Important Dates

* Registration and submission opens May 1 2018
- Early bird registration deadline: September 15 2018
- Final deadline: September 30 2018
* Submission deadline for titles and abstracts: July 31 2018
- Notification of the result of each application: August 10 2018
* Financial support application deadline: June 15 2018
- Notification of financial support: July 15 2018

Registration Fee and Related Costs

* Registration fee: 30,000JPY (Until September 15 2018)
35,000JPY (After September 15 2018)
* Conference dinner: 8,000JPY
* Excursion: 2,000JPY

Accompanying persons will not be required to pay the registration fee.
However, if they choose to attend, the conference dinner and excursion will
be charged as above.

Accommodation

Currently, accommodation for participants has been secured in blocks at:
* Hyatt Regency Fukuoka (rates to be confirmed)
https://www.hyattregencyfukuoka.co.jp/en/
* Hakata Green Hotel No.1 10,000JPY
https://www.booking.com/hotel/jp/hakata-green-no-1-fukuoka.html
* Hotel Cliocourt Hakata 10,500JPY
https://www.booking.com/hotel/jp/clio-court-hakata.html?aid=330843;lang=en
* Reisenkaku Hotel Ekimae 7,700(6,700)JPY
* ANA Crowne Plaza Hotel Fukuoka 20,000JPY
* HakataEkimae SB Hotel (rates to be confirmed)
* Hotel Route-Inn Hakata Ekimae 9,000JPY
* Hotel Hokke Club Fukuoka 10,700(9,500) JPY
https://www.hokke.co.jp/english/fukuoka/
*JR Kyushu Hotel Blossom Hakata Chuo 10,100 (8,800) JPY (w double bed)
http://www.jrk-hotels.co.jp/en/Hakatachuo/
* Dukes Hotel Hakata (rates to be confirmed)
http://www.dukes-hotel.com/hakata/index.php

The above rates refer to single rooms with breakfast per night (w/o breakfast
inside the braces). Rooms with double bed or two beds will be available on
request.

The above rooms will be available through the online accommodation booking
system which will be prepared together with an online registration system by
the organizing committee. November is high season in Fukuoka and sometimes
it is difficult to book accommodation. For example, the Sumo (Japanese
traditional wrestling) tournament will be held in Fukuoka during November
11-25 which is expected to make the booking tight. It is highly recommended
to secure the booking sufficiently early if you would like to stay at other
hotels.

Financial Support

Limited financial support, mainly for early career researchers and students
giving presentations, will be available. The deadline of application will
be June 15 and the result will be notified July 15.

* Early Career Researchers: Researchers within five years after obtaining
their Ph.D degree, counted from May 1 2018.

Other information such as detailed submission guidelines will be given in
later announcements.

For further information, please see our website:
http://side13conference.net

JR Hakata City Conference Rooms:
http://www.jrhakatacity.com.e.bv.hp.transer.com/communicationspace/meetingroom/
(Chinese and Korean versions are also available from
https://www.jrhakatacity.com/translation/ )

For information on the SIDE series see:
http://side-conferences.net/

タイトル：Cluster algebra structures of the coordinate rings and crystal bases

アブストラクト：The coordinate rings of many varieties relevant to reductive
algebraic groups have special generators so-called cluster variables. A
commutative algebra generated by cluster variables is called a cluster algebra.
When $G$ is a classical group over the complex field, it is decomposed into
cells $G^{u,v}$ parametrized by two Weyl group elements $u$, $v$. It is known
that the coordinate ring of $G^{u,v}$ has a cluster algebra structure.

On the other hand, crystal bases are appearing in the context of Lie theory
and quantum groups theory. By using crystal bases, we can study the structures
of representations of Lie algebras or quantum groups combinatorially.

In this talk, after seeing examples of cluster algebras and crystal bases, I
will explain a relation between the cluster variables in $\mathbb{C}[G^{e,v}]$
and crystal bases in the case $G=SL_{r+1}(\mathbb{C})$.

`