• 
  Number Theory Days in Tokyo
  July 4 (Sat) -5(Sun), 2026
  NISSAY Lecture Hall, Graduate School of Mathematical Sciences, The University of Tokyo [2026/07/01]
• 
  Professor Hiroki MASUDA was awarded the 31th JSS Award. [2026/06/02]
• 
  7th Italian-Japanese Workshop on Geometric Properties for Parabolic & Elliptic PDE's
  June 15(Mon) -19(Fri), 2026
  NISSAY Lecture Hall, Graduate School of Mathematical Sciences, The University of Tokyo [2026/05/26]
• 
  Mini workshop on Algebraic Geometry
  June 3(Wed) -5(Fri), 2026
  NISSAY Lecture Hall, Graduate School of Mathematical Sciences, The University of Tokyo [2026/05/25]
• 
  Professor Toshiyuki KOBAYASHI was awarded the 67th Fujihara Award. [2026/05/22]

• 2026/07/13
  Seminar on Geometric Complex Analysis   10:30-12:00   Room #126
  

  Shuho Kanda (The Univ. of Tokyo)
  Holomorphic polynomial crystallographic actions of nilpotent groups (Japanese)
• 2026/07/14
  Operator Algebra Seminars   16:45-18:15   Room #126
  

  Hiroshi Ando (Chiba University)
  Model theory and Connes' bicentralizer problem
   
   
  Lie Groups and Representation Theory   16:00-17:30   Room #056
  Joint with Tuesday Seminar on Topology.
  

  Yuichiro Tanaka (Graduate School of Mathematical Sciences, The University of Tokyo)
  Visible actions of real reductive groups on complex algebraic varieties
   
   
  Tuesday Seminar on Topology   16:00-17:30   Room #hybrid/056
  Joint with Lie Groups and Representation Theory Seminar. See our seminar webpage.
  

  Yuichiro Tanaka (The University of Tokyo)
  Visible actions of real reductive groups on complex algebraic varieties (JAPANESE)
   
   
  Numerical Analysis Seminar   16:30-18:00   Room #002
  

  Koya Sakakibara (Kanazawa University)
  A Stabilized Dual-SAV Parametric Finite Element Method for Constrained Geometric Flows of Planar Closed Curves (Japanese)
• 2026/07/15
  Number Theory Seminar   17:00-18:00   Room #117
  

  Naoto Fukutomi (University of Tokyo)
  Localization and coalescence of condensed ringed spaces
• 2026/07/17
  Colloquium   15:30-16:30   Room #NISSAY Lecture Hall
  

  Hiroki Matui (Graduate School of Mathematical Sciences, The University of Tokyo)
  Topological Full Groups and C*-Algebras Arising from Dynamical Systems (日本語)
• 2026/07/21
  Operator Algebra Seminars   16:45-18:15   Room #126
  

  Yusuke Isono (RIMS, Kyoto Univ.)
  Introduction to Tomita--Takesaki theory

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