Old Visits
2022 ,
2021 ,
2020 ,
2019 ,
2018 ,
2017 ,
2016 ,
2015 ,
2014 ,
2013 ,
2012 ,
2011 ,
2010 ,
2009 ,
2008 ,
2007 ,
2006 ,
2005 ,
2004 ,
2003 ,
2002 ,
2001 ,
2000 ,
1999 ,
1998 ,
1997
2022
Dec. 27 - Jan. 7,
Workshop on interactions between representation theory, combinatorics, and geometry , Singapore
Oct. 31, J. Conway Spirited Seminar Series , online
A mathematical definition of Coulomb branches of 3d N=4 SUSY gauge theories
Oct. 2- 5, Field Theories and Vertex Algebras , the UCLA Conference Center at Lake Arrowhead
Equivariant intersection cohomology of instanton moduli spaces
Oct. 2 - 7, Geometry and Physics of Quantum Toroidal Algebra ,
The IAS (Hangzhou)
Sep. 25 - 30, Bases for Cluster Algebras , Banff (online)
July 6 - 14, ICM 2022 , St. Petersbug on line
June 27 - July 2, Geometric Representation Theory , Moscow (tentative)
on line
Orthosymplectic bow varieties June 11-12, Noncommutative Geometry and Representation Theory
in memory of Tom Nevins, the University of Illinois at Urbana-Champaign
June, visiting Oxford
Mar. 14 - 25, the trimester program in vertex and chiral algebras , IMPA, Rio de Janeiro (online)
Instanton moduli spaces and W-algebras, Notes of
1st , 2nd ,
3rd
talks
Feb. 24 - 26, IMU EC meeting, Pisa, Italyon line
Feb. 20 - 25, Vertex algebras and Poisson Geometry , SwissMAP Research Station (online)
Involutions on symplectic singularities Feb. 14 - 25, Frontiers in Representation Theory , Melbourne
Jan. 10 - 14, Connections between String Theory and Special Holonomy ,
Oxford (online)
Jan. 6 - 9, Algebra and Geometry inspired from Integrable Field Theories, Glasgow (postponed to 2023)
2021
Dec. 13 - 16, Lothar Göttsche’s 60^th birthday (online)
Nov. 29 - Dec. 3, Arithmetic algebraic geometry and mathematical physics (online)
Oct. 31 - Nov. 6, Enveloping Algebras and Geometric Representation Theory,
Oberwolfach Workshop ID 2144 (online)
Sept. or Oct., Instantons and Monopoles in Quantum Gauge Theory, IHES (postponed to 2022)
Sep. 27 - 28, Mathematics without Borders
The Centennial of the International Mathematical Union, Strasbourg
Thematic Program
on Arithmetic, Geometry, and Physics , Aug. 9 - 13, 5 x 90 minutes Lectures at KIAS
A mathematical approach towards Coulomb branches of 3d SUSY gauge theories and related topics
1 and 2. I will briefly recall a symplectic reduction, which gives Higgs branches of 3d N=4 supersymmetric gauge theories. Then I will turn to a definition of Coulomb branches. It uses some tools in geometric representation theory, such as convolution algebras on equivariant homology groups, affine Grassmannians. I will briefly review them.
3. Symplectic duality was introduced by Braden, Licata, Proudfoot and Webster, as a relation between quantization of a pair of algebraic symplectic varieties. Higgs and Coulomb branches of a common gauge theory seem to be an example of such a pair. I will explain some examples of expected relations between them and their quantizations.
4 and 5. I will explain constructions of Kac-Moody Lie algebra representations on `homology' of Higgs and Coulomb branches for the case of quiver gauge theories. Higgs case is my construction in early '90s. Coulomb case is geometric Satake for finite type quiver, and its conjectural generalization.
Notes 1 , 2 , 3,4 , 5
Aug. 2 - 6, The international workshop on cluster algebras and related topics , Morningside Center of Mathematics, Chinese Academy of Sciences, Beijing, online
Representations of shifted Yangian
July 5 - 16, 2021 IHS Summer School - Enumerative Geometry, Physics and Representation Theory , online
June 28 - July 16, July 5 - 23, Quantum Fields, Geometry and Representation theory , ICTS, Bangalore, online
Title: Geometric Satake correspondence for affine Lie groups
Abstract
May 31 - June 5, Number Theory, Strings, and Quantum Physics , online
May 2 - 7, Quantization in Derived Algebraic Geometry and Representation Theory, BIRS Oaxaca, Mexico
Apr. 30, MIT Infinite Dimensional Algebra seminar , online
Apr. 5, Berkeley String-Math Seminar , online
Geometric Satake for affine Lie algebras
Mar. 12, GeMAT seminar , Rozansky-Witten theories with noncompact targets , online
Jan. 6 - 10, UK-Japan Winter School, Glasgow (postponed to 2022)
2020
Dec. 17 - 21, The international workshop on cluster algebras and related topics, Morningside Center of Mathematics, Chinese Academy of Sciences, Beijing (postponed to 2021, Aug. 2 - 6)
Dec. 14 - 18, Arithmetric Algebraic Geometry and mathematical Physics, RIMS (postponed to 2021)
Nov. 16 - 27, Frontiers in Representation Theory , Melbourne (postponed to 2022 Feb.)
Oct. 2021, Online China Geometry and Physics Seminar , zoom
Sept. 21 - Oct. 2, Knots, Strings, Symplectic Geometry and Dualities, Institut Mittag-Leffler
Sep. 28 - 29, IMU 100th anniversary, Strasbourg (postponed to 2021)
Sep. 6 - 11, Geometry and Physics of Quantum Toroidal Algebra ,
The IAS (Hangzhou) (postponed to 2022)
Aug. 20 (21 in JST), M-seminar, Kansas State University , Bow varieties and representations of affine Lie algebras , zoom
Jul. 6 - 10, July 17,24,31, Aug. 7, 14, McKay correspondence, mutation and related topics , Kavli IMPU, Online
July 2, Leicester Algebra and Geometry Open ONline Seminar (LAGOON)
Euler numbers of Hilbert schemes of points on simple surface singularities and quantum dimensions of standard modules of quantum affine algebras
Jun. 25, Qolloquium: Quivers, Representations, Resolutions , zoom
Jun. 22 - 26, Intensive Lectures at Tokyo Insitute of Technology via Zoom, June 22 - 26, 2020
The password is unset today (June 23). Use the same id as yesterday without password to enter the meeting room.
Theme : Mathematical Definition of Coulomb branches of 3d supersymmetric gauge theories
Lecture Time Table
Lectures will be given in English, and delivered by zoom.
The zoom access is restricted to students and members of Tokyo Insitute of Technology.
May 12, GRT at home seminar, zoom 17:00
June 11 - 14, Algebra and QFT on Catalina Island (tentative) (postponed)
May 25 - 29, Holomorphic Quantum Field Theories , Kavli IPMU (postponed)
Apr. - June, a trimester program focused on vertex algebras to be held at IMPA, Rio de Janeiro (postponed)
May 1 - 3, JDG Conference on Geometry and Topology, Harvard Univ. (postponed)
Mar. 22 - Apr. 17, SCGP
Mar. 12-13, Eguchi Memorial Symposium , Kavli IPMU
Mar.7 - 11, Caltech
Jan. or Feb. National University of Singapore (postponed)
2019
Dec. 16 - 20, Master Lectures, TSIMF
Oct. 21 - 25, Representation Theory of Algebraic Groups and Quantum Groups -- in honor of Professor Ariki's 60th birthday --, RIMS
Sept. 30 - Oct. 11, Gauge theories and differential invariants , ICTP
Coulomb branches of 3d N=4 gauge theories, Videos of
1st ,
2nd ,
3rd
lectures
Aug. 26 - 30, Quantum Structures in Algebra and Geometry , Northeastern Univ.
Quiver gauge theories with symmetrizers,
video
Aug. 12 - 23, Aug. 19 - 23, Quiver varieties and representation theory , CRM, Montreal
Aisenstadt Chair
Aug. 19, Introduction to Coulomb branches of 3d N=4 SUSY gauge theories
Aug. 21, 23, Bow varieties, pdf
July 29 - Aug. 2, Geometry, Integrability, and Moduli , MPIM, Bonn
K-theoretic Coulomb branches of gauge theories
July 22 - 26, Geometric and analytic aspects of moduli spaces , Hannover
July, Paris (host : Eric Vasserot)
June 3 - 21, Cluster Algebras 2019 , RIMS
May, SCGP
Apr. 1 - 5, Symplectic Representation Theory , CIRM, Luminy
Feb. 17 - 22, Fukaya 60 , Kyoto
Coulomb branches of quiver gauge theories and Kac-Moody Lie algebras
Feb. 4 - 8, Representation theory, gauge theory, and integrable systems , Kavli IPMU, Tokyo (organizer)
2018
Dec. 17 - 21, Vertex Algebras and Gauge Theory , SCGP
Vertex algebras in 4 dimensional theories
Dec. 3 - 7, D-modules, Quantum geometry and related topics , RIMS
Wild Hitchin moduli spaces
Nov. 3, Infinite dimensional algebras, geometry and integrable systems , RIMS, Kyoto
Introduction to Coulomb branches of 3d N=4 SUSY gauge theories, without affine Grassmannian
Oct. 29 - Nov. 2, Geometric Satake and beyond , Tsinghua Sanya International Math. Forum
Geometric Satake correspondence for Kac-Moody
Aug. 1 - 8, International Congress of Mathematicians 2018 , Rio de Janeiro
July 17 - 21, Vertex algebras, factorization algebras and applications , Kavli IPMU
July 9 - 13, Vertex operator algebras and symmetries , RIMS
Moore-Tachikawa 2d TQFTs whose values are holomorphic symplectic varieties
Jun. 25 - 29, Geometric Representation Theory and Symplectic Varieties, South Bend, Indiana
Jun. 18 - 22, String Math 2018 , Sendai
3d N=4 QFT and ring objects on the affine Grassmannian May 12 - 14, Mirror Symmetry and Quantum cohomology , Berkeley
Coulomb branches and their resolutions Apr. 26 - 27, visiting Arizona
Moore-Tachikawa 2d TQFTs whose values are holomorphic symplectic varieties
Apr. 24 - 25, visiting Caltech
Moore-Tachikawa 2d TQFTs whose values are holomorphic symplectic varieties
Apr. 14, Southern California Algebraic Geometry Seminar
Moore-Tachikawa 2d TQFTs whose values are holomorphic symplectic varieties
Mar. 23 - 26, Gauge Theory, Geometric Langlands and Vertex Operator Algebras , Perimeter Institute
Jan. 16 - May 25, Enumerative Geometry Beyond Numbers , MSRI, I participate from Jan. 22 to 26, and Mar. 19 to May 25.
2017
Dec. 27 - 29, Winter School on Coulomb Branches , KIAS
Cherkis bow varieties and Coulomb branches Dec. 11 - 15, Mirror Symmetry and Related Topics 2017 , Kyoto
Dec. 4 - 8, Future Directions in Representation Theory , Sydney
Quiver gauge theories and Kac-Moody Lie algebras Aug. 27 - Sep. 1, Analysis of gauge theoretic moduli spaces , BIRS, Banff
Cherkis bow varieties and affine Kac-Moody Lie algebras
Aug. 21 - 25, Interactions between Representation Theory and Algebraic Geometry , Chicago
Aug. 14 - 18, Pacific Rim Mathematical Association (PRIMA) Congress , Oaxaca, Mexico
Quiver gauge theories and Kac-Moody Lie algebras June 26 - 30, Algebraic Analysis and Representation Theory , Kyoto (Organizer)
June 6 - 9, ALGEBRAIC ANALYSIS, A conference to celebrate Masaki Kashiwara's 70th birthday , Paris
April, SCGP
Mar. 18 - 22, Berkeley
Mar. 6 - 10, Gauge Theory and Categorification , IPAM, UCLA
2016
Dec. 5 - 9, Algebraic Geometry and Integrable Systems , Kobe 2016, Kobe
Nov. 14 - 18, the Workshop on Hall algebras, enumerative
invariants and gauge theories , Fields Institute, Toronto
Oct. 10 - 14, Geometric Representation Theory , Kyoto (organizer)
Sep. 19 - 28, HSE, Moscow
Sep. 21, Cherkis bow varieties, HSE
Sep. 26, Coulomb branches and cyclotomic rational Cherednik algebras, pdf of the presentation, Skoltech
Sep. 12 - 16, Workshop on Geometric Correspondence in Gauge theory, Trieste
Aug. 31 - Sep.3, The 49th Symposium on Ring Theory and Representation Theory, Osaka Prefecture University
Introduction to quiver varieties, 1st , 2nd
July 24 - Aug. 5, Aspen
June 27 - July 2, String Math 2016 , Paris
Quantized Coulomb branches of 3d N=4 gauge theories and difference operators
April 11 - July 15, IHP String-Math trimester 2016 , Institut Henri Poincaré, Paris
I am planning to visit during June 20 - 26.
May 24 - 27, Wall-crossing and quiver varieties , EPFL, Lausanne
May 6, Representation Theory Seminar , Kyoto
Cherkis bow varieties and Coulomb branches of quiver gauge theories of affine type A
March 21 - 25, Algebraic Lie Theory and Symplectic Geometry ,
Tsinghua Sanya International Mathematics Forum
Feb. 23, KTGU Mathematics Workshop for Young Researchers , Coulomb branches of gauge theories
2015
Dec. 7 - 11, Shanghai Conference on Representation Theory , Chongming island near Shanghai
Nov. 9 - 13, The workshop on 6D gauged theory
and invariants of 4-manifolds, Beijing International Center for Mathematical Research (Only on Nov. 12, 13)
Oct. 25 - Nov. 4, HSE, Moscow
Sep. 14 - 18, Moduli spaces in algebraic geometry and mathematical physics , Chern Institute of Mathematics in Tianjin, China
Coulomb branches and refined DT invariants
Aug. 31 - Sep.4, Workshop on Derived structures in geometry and representation theory , Oxford, UK
Coulomb branches and DT invariants
July 20 26 - Aug. 14 8, Metric and analytic aspects of moduli spaces , Newton Institute, Cambridge, UK
Coulomb branches of 3-dimensional N=4 gauge theories, Video
July 20 - 24, AMS Summer Institute in Algebraic Geometry
June 28 July 6 - July 18, Park City Math Institute, Graduate Summer Program
June 1 - 5, Workshop on Nonabelian Gauged Linear Sigma Mode and Geometric Representation Theory , Beijing International Center of Mathematical Science
May 24 - 29, Geometric Unification from Six-Dimensional Physics , BIRS
Towards a mathematical definition of Coulomb branches of 3-dimensional N=4 gauge theories, Video
May 18 - 21, Geometry and representation theory of symplectic resolutions , Boston
Towards a mathematical definition of Coulomb branches of 3-dimensional gauge theories (continued)
May 4 - 8, Categorification in Algebra, Geometry and Physics (in honor of the 60th
Birthday of Christian Blanchet) , Corsica , workshop website
March 24 - 28, Lausanne
March 13, Paris, Towards a mathematical definition of Coulomb branches of 3-dimensional N=4 gauge theories
March 8 - April 4, Institute Mittag-Leffler ,
Representation Theory
Jan. 19 - 23, Winter School on Representation Theory, Geometric Representation Theory , Kyoto (Organizer)
2014
Dec. 14 - 24, Moscow
Dec. 17, Coulomb branches of 3d N=4 gauge theories and the affine Grassmannian, Part I
Dec. 22, Part II
Abstract
Nov. 17 - 21, Categorical Structures in Harmonic Analysis , MSRI
Nov. 12, The 2014 Kyoto Prize Workshop in Basic Sciences
3-dimensional gauge theory and representation theory, pdf
Oct. 20 - Nov. 8, SCGP
Sep. 29 - Oct. 1, Lectures at University of Tokyo
Title : Instanton moduli spaces and W-algebras
Detail
Sep. 15 - 19, McKay correspondence, Orbifolds, Quivers , Warwick
Sep. 8 - 12, Introduction to Derived Categories , Warwick
Aug.6 - 9, ICM satellite conference, Representation Theory and Related Topics , Daegu, Korea
July 21 - Aug. 1, Geometric Representation Theory , Kyoto (Organizer)
June 16 - 20, Workshop on Instanton Counting: Moduli Spaces, Representation Theory and Integrable Systems , Lorentz Center, Leiden
Feb. 21 - 22, Geometry, Physics and Representation Theory , Nagoya
Jan. 19 - 25, KIAS
Jan. 11, Exact Results on SUSY Gauge Theories and Integrable
Systems , Rikyo Univ.
2013
Dec. 13 - 19, Representation Theory and applications to Combinatorics, Geometry and Quantum Physics , Feigin 60 Moscow
Dec. 2 - 6, Chern-Simons reserach lectures , UC Berkeley
Oct. 21, Kazhdan-Lusztig conjecture via quasi-maps and Uhlenbeck spaces,
Informal Mathematical Physics Seminar, Columbia University, pdf
Oct., Quiver varieties , Simons Center for Geometry and Physics, Stony Brook
Sep.- Oct., Cohomology in Mathematics and Physics , Euler International Mathematical Institute, St. Petersburg
Sep. 9 - 13, School and Workshop on geometric correspondences of gauge theories , ICTP, Trieste
Aug. 7 - 8, Representation Theory and Algebraic Structures , Seoul
Gauge theory and Representation Theory
July 30 - Aug. 2, 2013 RIMS SYMPOSIUM "String Theory, Integrable Systems and Representation theory" ,
RIMS
title: Integral forms of W-algebras
abstract: During the study of the AGT conjecture, I am lead to introduce an integral form of the W-algebra, defined over
$\mathbb Q[\varepsilon_1, \varepsilon_2]$, where $k+h^\vee = -\varepsilon_2/\varepsilon_1$.
The definition does not involve the AGT, and is based on the BRST cohomological definition of the W-algebra.
I will explain the construction, and the specialization at $\varepsilon_1=0$.
June 24 - 28, Representation Theory and Categorification, at PRIMA2013 conference , Shanghai
Cluster algebras and singular supports of perverse sheaves
June 11(Tue) - 21(Fri), Development of moduli theory , MSJ-SI, RIMS
June 3 - 14, Moduli spaces and their invariants in mathematical physics , Montreal
Apr.8 - 12, Interactions between Noncommutative Algebra, Representation Theory, and Algebraic Geometry , MSRI
Mar. 3 - 9, Infinite Analysis 13 , RIMS, Japan
2012
Dec. 10, IPMU DMM seminar , AGT conjecture
Oct. 7 - Nov. 3, Simons center for Geometry and Physics , Stony Brook
Oct. 11, Integrability Seminar, t-analog of q-characters of Yangians and Betti numbers of graded quiver varieties
Oct. 18, cont'd
Oct. 23, SCGP Weekly Talk, AGT conjecture , pdf for resume
Oct. 25, Topology Seminar, Refined Chern-Simons theory and Hilbert schemes of points on the plane
Oct. 15, Columbia University, Informal Mathematical Physics Seminar,
Refined Chern-Simons theory and Hilbert schemes of points on the plane
Sep. 24 - 28, Workshop , Kyoto, organized by Syu Kato
Quiver varieties and tensor products
Aug. 13 - 17, ICRA 2012 , Bielefeld
Monoidal categorification, revisited
July 7 - 13, Representation Theory and Symplectic Algebraic Geometry, Luminy, I will not go.
May 28 - June 1, Conference on Geometry, Kyoto
May 12 - 17, Perspectives in Representation Theory ,
a conference celebrating the 60th birthday of Igor Frenkel, Yale
Apr. 22 - 28, Knot homologies and BPS states, St. John, Virgin Islands
Apr. 3 - 7, Progress in Quantum Field Theory and String Theory , Osaka City University
AGT conjecture and Convolution algebras, pdf
Mar. 19 - 30, MPIM, Bonn
Mar. 12 - 16,
Groupement de Recherche Géométrie Algébrique et Géométrie Complexe ,
CIRM, Luminy
Instanton counting and Donaldson invariant
Feb. 20 - 24, National University of Singapore
2011
Dec. 13 - 16, SYMMETRIES, INTEGRABLE SYSTEMS AND REPRESENTATIONS , Lyon
Oct. 30 - Nov. 6, Losev visits Kyoto.
Sep. 19 - 23, Shanghai Jiao Tong University
Sep. 4 - 9, Cluster algebras, representation theory, and Poisson geometry , Banff
July 25 - 29, Infinite Analysis 11 , The University of Tokyo
July 11, ORTS
July 4, 7, 14, 21, Japan-Russia Summer School
June 20 - 23, Algebras, Quivers, and Representations, 2011 Abel Symposium , Sognefjord, Norway
June 15 - 17, Maulik ?
Jan.4 - July 1, MODULI SPACES, The Isaac Newton Institute for Mathematical Sciences in Cambridge
Mar. 29 - 31, Mini-workshop on moduli of instantons , Nagoya University
Mar. 24 - 29, UK-JAPAN MATHEMATICAL FORUM , Keio University
Jan. - Apr., The interaction of representation theory with geometry
and combinatorics , Hausdorff Institute in Bonn
Jan. 24 -- 28,
Derived Categories 2011 Tokyo
Jan. 7 -- 11, IHES, Kaleidoscopic View of Modern Mathematics,
Rencontre autour des Publications Mathmatiques de l'IHS
Title: Donaldson = Seiberg-Witten from Mochizuki's formula and instanton counting, pdf
2010
Dec. 19 -- 24, Derived categories of Algebro-Geometric origin and integrable systems , the 15th Midrasha Mathmaticae, Jerusalem
Title: Quiver varieties and cluster algebras, I, II, III
Nov. 24 -- 26, Workshop on Quantum Geometry, Kyoto
Speakers : Sergei Gukov, Olivier Schiffmann, Ben Webster
Nov. 23, Takagi Lectures, Kyoto
Sep. 12 -- 17, KIAS
Aug. 9 -- 14, The Xian conference on representation theory
--> I cannot go because of the exam.
Aug. 7, 8, 13, 14, 15, ICRA XIV , International Conference on Representations of Algebras and Workshop, Tokyo, Japan
Aug. 2 -- 6, Representation Theory of Algebraic Groups and quantum groups , Nagoya
Cluster algebras and quantum affine algebras
Abstract:
I will explain what is a cluster algebra and why it is useful to understand the representation theory of a quantum affine algebra.
July 26, 5-th Pacific Rim Complex / Symplectic Geometry 2010 , Nagoya
Donaldson = Seiberg-Witten from Mochizuki’s formula and instanton counting
July (2+1/2 weeks), UK tour
May 25 -- 29,
Quiver varieties and crystal bases of quantum affine algebras ,
NSF-CBMS Conferences, North Carolilna State University
Mar. 13 -- 16,
Algebraic Analysis and Beyond , Kyoto
Title: Donaldson = Seiberg-Witten from Mochizuki's formula and instanton counting
Jan. 10 -- 18,
Quantum integrable systems and supersymmetric gauge theories , Simons Center for Geometry and Physics, StonyBrook
Donaldson = Seiberg-Witten from Mochizuki's formula and
the instanton counting for the theory with a fundamental matter
abstract
Note
2009
Dec. 7 -- 11,
Mirror Symmetry and Gromov-Witten Invariants ,
Univ. of Tokyo
Sep. 14 -- 18,
Instantons, Quivers,
Donaldson-Thomas invariants, and non-commutative geometry , CIRM, Luminy
Aug. 24 -- 28,
Arithmetic Geometry and Moduli Spaces in Algebraic Geometry
, Hang-Zhou, China
Title: Perverse Coherent Sheaves on Blow-Up
July 6 -- 16, Combinatorial and Geometric Structures in Representation Theory , Durham University (I will not go.)
Geometric Representation Theory and Extended Affine Lie Algebras ,
Fields Institute Summer School, University of Ottawa
June 6, 7, Takagi Lectures, Hokkaido University
Speakers : McDuff, Khovanov
May 18 -- 22,
Focus Week on New Invariants and Wall Crossing
IPMU
Apr. 19 - 22, Tamas Hausel will visit us.
March 8 - 14,
Enveloping Algebras and Geometric Representation Theory ,
Oberwolfach
Algebraic Lie Theory , Newton Institute for Mathematical Sciences (I will not go.)
MSRI PROGRAM in ALGEBRAIC GEOMETRY in 2009 , MSRI (I will not go.)
March 2 - 5,
Clay Lectures on Mathematics ,
RIMS, Kyoto
Quiver Varieties and Geometric Langlands Correspondence for Affine Lie Algebras
Abstract
Notes for my talks,
part 1 ,
part 2
Feb. 16 - 20,
Quantum algebra related to various topological field theories in geometries,
Kyoto
Title : Quiver Varieties and Geometric Langlands Correspondence for Affine Lie Algebras
Jan. 19 - 24,
Mirror Symmetry and related topics , Univ. of Miami
Title : Instanton counting and wall-crossing in Donaldson invariants
Abstract
PDF files
2008
Dec. 15 - 20, 2008 Osaka City University
International Academic Symposium“ Riemann Surfaces, Harmonic Maps and Visualization ”
Title : Instanton counting (survey)
Abstract
Oct. 4, 5 : The 5th Takagi Lectures, Univ. of Tokyo
Sep. 9 -- 13, Hong-Kong
Sep. 10, Seminar,
Counting inariant of perverse coherent sheaves and its wall-crossing,
pdf of my resume.
Sep. 11, 12, Workshop,
Quiver Varieties and double affine Grassmannian,
pdf of my note.
Sep. 1 -- 5,
Combinatorics and Representation Theory , Nagoya Univ.
Aug. 26 -- 30,
Crystals and Tropical Combinatorics ,
Kyoto, Kansai Seminar House
July 28 -- Aug. 8, The 1st MSJ-SI Probabilistic approach to Geometry , Kyoto
July 7 -- 11, Geometric Langlands program , Leiden
June 16 -- July 4, Geometric Methods in Representation Theory ,
Grenoble
June 21, The fourth Takagi Lectures , Kyoto
June 9 -- 13,
Moduli spaces and birational geometry ,
RIMS,
Wall-crossing for moduli of perverse coherent sheaves
May 19 -- 24,
Bert Kostant's 80th birtday conference ,
Pacific Institute for the Mathematical Sciences, University of British Columbia
Feb. 26,
Berkeley-Stanford Algebraic Geometry Colloquium ,
(Conjectural) triply graded link homology groups of the Hopf
link and Hilbert schemes of points on the plane
Feb. 25, Stanford,
Perverse coherent sheaves on blowup surfaces ,
pdf of my note
Feb. 22,
Columbia Algebraic Geometry Seminar ,
Perverse coherent sheaves on blowup surfaces
Feb. 15 , Feb.29,
Princeton Symplectic geometry seminar ,
(Conjectural) triply graded link homology groups of the Hopf
link and Hilbert schemes of points on the plane ,
pdf of my note
2007
2007 Sep. -- 2008. Mar., New Connections of Representation Theory to Algebraic Geometry and Physics , Institute of Advanced Study
2008 Mar. 10 -- 14, Algebro-Geometric Derived Categories and Applications
2007 Nov. 26 -- 30, Gauge Theory and Representation Theory
Instanton counting and wall-crossing formulas for Donaldson invariants,
pdf
Seminars on Instanton counting and knot invariants
Sep. 28, Overview, by myself, pdf of my note
Oct. 5, Jones-Witten (Chern-Simons) invariants, by myself,
pdf of my note
Oct. 12, Chern-Simons Theory as String Theory, by Johannes Walcher
Oct. 19, Large N Open/Closed Duality in Topological String Theory, by Andrew Neitzke
Oct. 26, continued, by Andrew Neitzke
Nov. 2, Instanton counting by myself,
pdf of my note
Nov. 9, Topological vertex by Liu,
Nov. 14, continued, by Liu
Nov. 16, (in Discussion session) summary by myself,
pdf of my note
Dec. 7, Seiberg-Witten curve,
pdf of my note
Dec. 14, Seiberg-Witten curve Part 2,
pdf of my note
Oct. 17, Princeton Univ., Geometry, Representation theory, and Moduli Seminar ,
Perverse coherent sheaves on a blowup surface II, pdf of my note
Oct. 10, Princeton Univ., Department Colloquium , Perverse coherent sheaves on a blowup surface , pdf of my note
Aug. 8 -- 12
Pacific Rim Complex Geometry Conference 2007 ,
Kobe, Japan
Wall-crossing formula for Donaldson invariants and instanton counting
June 25 -- 30, Algebraic Analysis and Around , RIMS
Title: Sheaves on ALE spaces and quiver varieties
Abstract
pdf file for the talk
June 4 -- 8,
Arithmetic harmonic analysis on character and quiver varieties ,
American Institute of Mathematics, Palo Alto, California
May 10 -- 24,
Link homology and categorification , RIMS,
workshop in the RIMS International Research project `Mirror Symmetry and Topological Field Theory '
(organized together with Fukaya et al, April 2007 - March 2008),
Mar. 5 --8,
Exploration of New Structures and Natural Constructions in Mathematical Physics , Nagoya Univ.
K-theoretic Donaldson invariants via instanton counting,
pdf
2006
Sep. 13 -- 17,
Representations of Quivers, Singularities and Lie Theory ,
Morningside Center of Mathematics, Chinese Academy of Sciences, Beijing
Title : Quiver varieties and Kashiwara's crystal, I, II, III
Abstract
Aug. 10 -- 21, ICTP
July 25 -- 27, Workshop on Mathematical Aspects of Topological Strings , Hokkaido Univ.,
Talk Title : Computation of Betti numbers of quiver varieties
June 12 -- 17, Representation Theory of algebraic groups and quantum groups , Nagoya Univ.
T-analog of q-cahracters of finite dimensional representations of quantum affine algebras -- explicit examples
abstract
OHP sheets
Jan. -- June
New topological structures in Physics , MSRI
Mar. 15 -- 17, Harvard Univ.
Mar. 16, Northeastern-Brandeis-MIT-Harvard Colloquium,
Title : Instanton counting and Donaldson invariants
Abstract
Mar. 17, Gauge theory and topology seminar,
K-theoretic Donaldson invariants
2005
Dec. 12 -- 16,
Algebraic Geometry & Beyond , Kyoto
Dec. 4 -- Dec. 18,
Iain Gordon visits us.
Dec. 8, 13:30 -- 15:00, Room 152
Dec. 9, 13:30 --
Nov. 28 -- Dec. 10,
Tamas Hausel visits us.
Nov. 29, 15:00 -- 16:30, Room 609
Dec. 1, 13:30 -- , Room 604
Oct. 8--13,
Progress in algebraic geometry inspired by physics
,
Banff International Research Station
Aug. 10 - Sep. 1,
KITP program on Mathematics and String Theory
July 25--29,
AMS Summer Institute, Algebraic Geometry , University of Washington, Seatle
July 20--23,
Asian Mathematical Conference 2005 (AMC 2005) , Singapore
Jan. 22 -- 26,
Periods ,
RIMS
Jan. 18 -- 20,
Floer homology and related topics 3, Kyoto Univ.
2004
Dec. 18 - 21, Differential Geometry in Nagoya 2004 (I did not go.)
Dec. 9 -- 11, Complex Geometry and String Theory , Nagoya Univ.
Nov. 26 -- Dec. 11 (?),
Nikita Nekrasov visits Kyoto
Oct. 23--27,
Geometric Aspects of the Langlands Program , AMS meeting, Special Session, Chicago
August, Method of Algebraic Analysis in Integrable Systems , Representation Theory and Geometry, RIMS
July 26--30, Mathematical Aspects of String Theory , RIMS
Donaldson invariants of toric surfaces via instanton counting, pdf for ohp
July 10--16,
AMS, IMS, SIAM Joint summer research conferences,
Representations of Algebraic Groups, Quantum Groups, and Lie Algebras ,
Utah, Snowbird
March 3 - 20, France
Jan. 26--30, Enumerative geometry on moduli spaces , Kyoto University, Instanton counting I
Jan. 6--14, International Colloquium on "Algebraic Groups and
Homogeneous Spaces",
Tata Institute of Fundamental Research, India,
Crystal bases of quantum affine algebras
2003
Jan. 16, 109th annual meeting of AMS ,
Baltimore, Maryland, AMS
Feb. 20,
Harvard-MIT-Brandeis-Northeastern Colloquia , USA,
Quiver varieties and quantum toroidal algebras
June 1-8, Moduli Spaces, Lie Theory and their interaction with Theorethical Physics ,
Cortona, Italy, Instanton counting on blowups
June 16-19, Workshop on Quantum Cohomology , RIMS, Kyoto, Introduction to moduli spaces of instantons on R^4
July 14-20, Algebraic structures and moduli spaces ,
CRM, University of Montreal, Montreal, Canada, Instanton counting on blowup. I, II, III, IV.
Aug. 18 -- 21, The 50th Geometry Symposium, Hokkaido Univ.
2002
Jan. 7 - 11,
Categorical Algebra, Deformation Theory and Field Theory , Kyoto,
Quiver varieties and quantum affine algebras
Feb. 5 - 8,
D-branes and Mirror symmetry , RIMS
March, MSRI, Infinite-dimensional algebras and mathematical physics
talk ,
Kirillov-Reshetikhin modules of quantum affine algebras
April 5-7,
CONFERENCE ON HILBERT SCHEMES, VECTOR BUNDLES AND THEIR INTERPLAY WITH REPRESENTATION THEORY,
,
University of Missouri,
Homology groups of moduli spaces of sheaves on K3 surfaces
April - June, Non-commutative phenomena in mathematics and theoretical physics , Centre for Advanced Study,
Quiver varieties
June,
Groups and Geometry, ALGEBRAIC TRANSFORMATION GROUPS , Montreal,
Quiver varieties and finite dimensional representations of quantum affine algebras
July, Newton Institute
Aug. 14 - 18, Satelite conference, Stringy Orbifolds , Sichuan University,
Towards derived category of coherent sheaves on quiver varieties
Aug. 20 - 28, ICM 2002 , Beijing,
List of plenary speakers ,
List of invited speakers
Aug. 29 - Sep. 2, Satellite conference, Algebra , Suzhou Univ,
Extremal modules of quantum affine algebras
Dec. 16 - 20, A workshop organized by Fukaya , Kyoto
2001
March,
Program on Lie groups 2001,
The University of Hong-Kong ,
Lecture Announcement
June 18 - July 13,
The Duality Workshop: A Math/Physics Collaboration,
University of California, Santa Barbara ,
Equivariant K-theory of Moduli of Sheaves on ALE Spaces
Aug. 1 - 10,
10th Mathematical Society of Japan International Research Institute,
Representation Theory of algebraic groups and quantum groups,
Sophia University, Tokyo ,
Quiver varieties and quantum affine algebras,
Aug. 26 - Sep. 1,
Complex Geometry: Interactions between Algebraic, Differential, and
Symplectic Geometry , Oberwolfach,
Homology of moduli spaces of sheaves on a $K3$ surface
Sep. 3 - Sep. 7,
Geometry of Moduli spaces and Integrable Systems ,
RIMS
Oct. 22 - 26,
Combinatorial and geometric representation theory ,
Seoul National University,
Quiver varieties and crystals
2000
July 9 - 21,
Representation Theory - 2000,
The Erwin Schroedinger International Institute for Mathematical Physics,
Vienna, Austria
July 17,
Quiver varieties and finite dimensional representations of quantum affine algebras
July - Aug. Japan-Britain Joint Research Project 2000 at Warwick
Aug. 14 - 18,
Symplectic Geometry and Mirror Symmetry, KIAS ,
On McKay correspondence
Aug. 21 - 26, International Workshop on Physics and Combinatorics 2000 ,
Nagoya Univ.
``$t$-analogue of the $q$-characters of finite dimensional
representations of quantum affine algebras'',
OHP sheets
(gzipped ps file)
Sep. 10 - 17, Summer School Geometry of quiver representations and preprojective algebras, Univ. of Sussex, U.K. , Quiver varieties and quantum affine algebras, I,II, III
Nov. 27 - Dec. 1, Modular invariance, ADE, subfactors, vertex operator algebras and Hilbert schemes, Kansai Seminar House, Kyoto
1999
1998