• 
  Professor Emeritus Fumio Kikuchi has been awarded the Order of the Sacred Treasure, Gold Rays with Neck Ribbon, in the Autumn 2026 conferment of honors. [2026/11/03]
• 
  Professor Emeritus Yukio Matsumoto has been awarded the Order of the Sacred Treasure, Gold Rays with Neck Ribbon, in the Autumn 2026 conferment of honors. [2026/11/03]
• 
  Trends in Modern Geometry: Second Series, 2027
  January 11 (Mon) – 15 (Fri), 2027
  NISSAY Lecture Hall, Graduate School of Mathematical Sciences, The University of Tokyo [2026/10/20]
• 
  2026 Seoul-Tokyo Conference in Mathematics
  November 30 – December 1, 2026
  [2026/10/15]
• 
  The Geometry of 11/8
  November 8, 2026
  NISSAY Lecture Hall, Graduate School of Mathematical Sciences, The University of Tokyo [2026/10/02]

• 2026/11/06
  Algebraic Geometry Seminar   13:15-14:45   Room #118
  

  Shu Nimura (Nagoya University)
  Moduli spaces of $G$-constellations on $\mathbb{C}^2$ and their birational geometry
• 2026/11/09
  Operator Algebra Seminars   15:30-17:00   Room # 126
  

  Hikaru Sekiyama (Keio University)
  KS-Groupoids and KS-Crossed Products associated with Inverse Semigroup Actions
   
   
  Seminar on Geometric Complex Analysis   10:30-12:00   Room #126
  

  Junjiro Noguchi (The Univ. of Tokyo)
  　 (Japanese)
   
   
  Tokyo Probability Seminar   16:00-17:30   Room #122
  We are having teatime from 15:20 in the common room on the second floor. Please join us.
  

  Kenta Misumi (The University of Tokyo)
  ディリクレ空間で、準至る所ベクトル束を作り、マルコフ過程に沿って準至る所ベクトルを平行移動する。
   
   
  FJ-LMI Seminar   14:00-15:00   Room #123
  Joint with Probabilty Seminar
  

  Ignacio MADRID (Institute of Industrial Science, The University of Tokyo)
  Explaining exclusion-like current large deviations in a single-particle diffusion-renewal system (英語)
• 2026/11/10
  Numerical Analysis Seminar   16:30-18:00   Room #122
  

  Takiko Sasaki (Musashino University)
  Touchdown in Nonlocal MEMS Equations: Rescaling and the Construction of Higher-Order Profiles (Japanese)
   
   
  Tuesday Seminar on Topology   16:00-17:30   Room #hybrid/056
  Pre-registration required. See our seminar webpage.
  

  Minkyu Kim (Korea Institute for Advanced Study)
  Symmetric powers and double loop spaces of odd spheres (JAPANESE)
   
   
  Tuesday Seminar of Analysis   16:00-17:30   Room # 002
  

  Jin Takahashi (Institute of Science Tokyo)
  Existence of a separating norm for the semilinear heat equation (Japanese)
   
   
  FJ-LMI Seminar   13:15-14:00   Room #056
  

  Timothée BÉNARD (CNRS - University Sorbonne Paris Nord)
  Diophantine approximation and homogeneous dynamics
• 2026/11/11
  Number Theory Seminar   17:00-18:00   Room #123
  

  Shuji Saito (University of Tokyo)
  An integral Hyodo-Kato isomorphism
• 2026/11/12
  Tokyo-Nagoya Algebra Seminar   15:00-16:30   Online
  

  Yasuaki Hiraoka (Kyoto University)
  パーシステントホモロジー：理論と応用 (Japanese)
• 2026/11/16
  Operator Algebra Seminars   15:30-17:00   Room # 126
  

  Kohki Sakamoto (The University of Tokyo)
  Continuity results for random walks in hyperbolic percolation
   
   
  Seminar on Geometric Complex Analysis   10:30-12:00   Room #126
  

  Kengo Hirachi (Univ. of Tokyo)
  Variation of characteristic numbers of strictly pseudoconvex domains (Japanese)
• 2026/11/17
  Numerical Analysis Seminar   16:30-18:00   Room #122
  

  Kazunori Matsui (Tokyo University of Marine Science and Technology)
  A projection method for a visco-elasto-plasticity model with linear kinematic hardening and its vanishing viscosity limit (Japanese)
• 2026/11/20
  Seminar on Mathematics for various disciplines   14:00-15:00   Room #056
  This seminar is held on Friday afternoon.
  

  Dieter Bothe (Technische Universität Darmstadt)
  Multicomponent Diffusion — Modelling and Analysis (English)
• 2026/11/26
  Discrete mathematical modelling seminar   17:00-18:30   Room #118
  

  Mariusz Białecki (Polish Academy of Sciences・Institute of Geophysics)
  Catalan-like sequences as limits of a stochastic aggregation-disintegration process (English)
• 2026/11/27
  Colloquium   15:30-16:30   Room #NISSAY Lecture Hall
  

  Yuichiro Tanaka (Graduate School of Mathematical Sciences, The University of Tokyo)
  Visible actions of real reductive groups and multiplicity-free representations (日本語)
• 2026/11/30
  Operator Algebra Seminars   15:30-17:00   Room #126
  

  Fuyuta Komura (Kyushu Institute of Technology)
  Cartan-preserving *-automorphism groups: realization and obstructions for compact abelian groups
   
   
  Seminar on Geometric Complex Analysis   10:30-12:00   Room #126
  

  Natsuo Miyatake (Tohoku Univ.)
  Equilibrium Metrics and Complete Solutions (Japanese)
• 2026/12/01
  Tuesday Seminar of Analysis   16:00-17:30   Room # 002
  

  Keisuke Takasao (Kyoto University)
  Convergence of an Allen-Cahn system to Brakke's multiphase mean curvature flow (Japanese)

3-8-1 Komaba Meguro-ku Tokyo 153-8914, Japan   TEL: 03-5465-7001 FAX: 03-5465-7011