Title

Topology of Busemann nonpositively curved space

Date

2025.7.16 (Wed)　16:45-17:45 (16:15- tea in Rm105)

Place

Rm110, Bldg no. 3, Graduate School of Science, Kyoto University

Speaker

Tadashi Fujioka (Dep. of Math., Kyoto University)

Title

Combinatorial construction of symplectic 6-manifolds via bifibration structures

Date

2025.7.2 (Wed)　16:45-17:45 (16:15- tea in Rm105)

Place

Rm110, Bldg no. 3, Graduate School of Science, Kyoto University

Speaker

Kenta Hayano (Keio University)

Title

Construction of $p$-energy forms and $p$-energy measures on the Sierpinski carpet

Date

2025.6.25 (Wed)　16:45-17:45 (16:15- tea in 2nd floor common room)

Place

Rm110, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Ryosuke Shimizu (Graduate School of Informatics, Kyoto University)

Title

On the Z-module generated by multiple zeta values

Date

2025.6.11 (Wed)　16:45-17:45 (16:15- tea in Rm105)

Place

Rm110, Bldg no. 3, Graduate School of Science, Kyoto University

Speaker

Minoru Hirose (Kagoshima University)

Title

Mathematical problems from supersymmetric field theories

Date

2025.6.4 (Wed)　16:45-17:45 (16:15- tea in 2nd floor common room)

Place

Rm110, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Wenbin Yan (Tsinghua University)

Abstract

　Supersymmetric field theories are closely connected to various fields of mathematics. In this talk, I will review different invariants of supersymmetric theories originated from counting BPS particles and what mathematics is behind. With the help of dualities and other techniques, many interesting mathematical statements and results can be extract from these invariants.

Title

Entropy of degeneration of algebraic variety

Date

2025.5.28 (Wed)　16:45-17:45 (16:15- tea in Rm105)

Place

Rm110, Bldg no. 3, Graduate School of Science, Kyoto University

Speaker

Eiji Inoue (Dep. of Math., Kyoto University)

Title

Kazhdan's Property (T) and Semidefinite Programming

Date

2025.5.21 (Wed)　15:10-16:10 　　

Place

Rm420, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Narutaka Ozawa (RIMS, Kyoto University)

Title

The geometric Brascamp-Lieb inequality

Date

2025.5.21 (Wed)　16:45-17:45 　　

Place

Rm420, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Neal Bez (Nagoya University)

Title

On infinite collisions of simple random walks on graphs

Date

2025.5.14 (Wed)　16:45-17:45 (16:15- tea in 2nd floor common room)

Place

Rm110, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Satomi Watanabe (RIMS, Kyoto University)

Title

Variational problems and PDEs for S^2-valued maps in the ferromagnetic model

Date

2025.5.7 (Wed)　16:45-17:45 (16:15- tea in Rm105)

Place

Rm110, Bldg no. 3, Graduate School of Science, Kyoto University

Speaker

Ikkei Shimizu (Dep. of Math., Kyoto University)

Title

Model checking via fixed points and no-go theorem for product construction

Date

2025.4.30 (Wed)　16:45-17:45 (16:15- tea in 2nd floor common room)

Place

Rm110, Research Institute for Mathematical Sciences, Kyoto University

Speaker

Mayuko Kori (RIMS, Kyoto University)