RIMS meeting 2021

New developments of transformation groups

In this workshop, we study new developments of transformation groups. We welcome any researchers and students who are interested in transformation groups.

Date: May 24 (Mon)-26(Wed), 2021

Place: Zoom online meeting

Organizer: Tomohiro Kawakami (Wakayama University, kawa(at)wakayama-u.ac.jp)

Contact: If you wish to attend the meeting, please contact the organizer. Participants wishing to contribute a talk are requested to inform the organizer of a talk title. Speakers are requested to submit a manuscript for Proceedings.

Deadline for contributed talk: March 10, 2021

Proceedings We plan to publish Proceedings.

Program

May 24, 2021

12:15-12:45 Shunsuke Tamura (Graduate School of Natural Science and Technology Okayama University)

6次元球面への有限群のodd-fixed-point actionについて

13:00-13:30 Masato Fujita (Japan Coast Guard Academy)

Uniformly locally o-minimal structures of the second kind and their tame topology

13:45-14:15 Hiroshi Tanaka (Kindai University)

Integral algebra

14:30-15:00 Satoshi Tokizaki (University of Tsukuba)

Characterization of theories by hierarchies of logical formulas

15:15-15:45 Kota Takeuchi (University of Tsukuba)

Automorphisms on graphs

May 25, 2021

9:00-9:30 Takanobu Aoyama (Osaka University)

On a Lattice of Compatible Topologies on a Linear Space

9:45-10:15 Shintaro Kuroki (Okayama University of Science)

Equivariant vector bundles from a GKM theoretical point of view

10:30-11:00 Yasufumi Nitta (Tokyo University of Science）

Equivalence of strengthenings of relative K-stability

for polarized toric manifolds

11:15-11:45 Norihiko Minami (Nagoya Institute of Technology）

On the nonexistence of the hierachy structure:

lower stable rationality= higher stable ruledness

14:00-14:30 Ryousuke Fujita (Fukui University)

On the solvability of irreducible polynomials and its relation to orbit graphs

14:45-15:15 Yuki Sugiyama (Chuo University)

Equivariant index of a generalized Bott manifold

15:30-16:00 Toshio Sumi (Faculty of Arts and Science, Kyushu University)

Nonisomorphic Smith equivalent modules over solvable groups

May 26, 2021

9:00-9:30 Takao Satoh (Tokyo University of Science）

On twisted unstable cohomologies of the automorphism groups of free groups

9:45-10:15 Kazuhisa Shimakawa (Okayama University)

Colombeau-like generalization of smooth maps between diffeological spaces

10:30-11:00 Mikiya Masuda (Osaka City University Adanced Mathematical Institute)

Smooth toric Richardson varieties of Catalan type and Wedderburn-Etherington numbers

joint work with Eunjeong Lee (IBS-CGP) and Seonjeong Park (Jeonju Univ.)