2015

- July 20 - Aug. 14, Metric and analytic aspects of moduli spaces, Newton Institute, Cambridge, UK
- June 28 - July 18, Park City Institute Summer Program
- May 18 - 22, geometry and representation theory of symplectic resolutions, Boston
- May 4 - 8, Categorification in Algebra, Geometry and Physics (in honor of the 60th Birthday of Christian Blanchet), Corsica
- March 8 - April 4, Institute Mittag-Leffler

- Nov. 17 - 21, Categorical Structures in Harmonic Analysis, MSRI
- Oct. 20 - Nov. 8, SCGP
- 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.

- 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
- announcement
- 1st lecture
- 2nd lecture
- 3rd lecture
- 12/5 colloquium, KL conjecture via quasimaps.pdf

- 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
- Oct. 2, a review lecture on construction of quantum affine algebras from quiver varieties
- Oct. 8, Representation Theory and Gauge Theory, video
- Oct. 17, Instantons moduli spaces and W-algebras, video

- 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
- pdf for the first lecture.
- pdf for the second lecture.
- pdf for the third lecture.
- Talk in the second week: Perverse sheaves on instanton moduli spaces and AGT conjecture

- 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