Seminars

Ritsumeikan Geometry Seminar

2019.10.23 Wed up
Place: Colloquium Room, West-Wing 6th floor, Biwako-Kusatsu Campus, Ritsumeikan University
Speaker: Olga Lukina (University of Vienna)

Talk 1

Date: 25 November (Mon) 16:20-17:50
Title: Introduction to group actions on Cantor sets
Abstract: In this talk, we consider basic tools and properties which we use in the subsequent talks to study minimal equicontinuous group actions on Cantor sets. The tools include chains of finite index subgroups. An important property is the local quasi-analyticity of an action, introduced by Alvarez Lopez and Candel. We illustrate the concepts and methods using examples.

Talk 2

Date: 28 November (Thu) 10:40-12:10
Title: Invariants of Cantor group actions
Abstract: In this talk, we consider two direct limit invariants which can be associated to a Cantor group action, introduced in a recent joint work with Steve Hurder, and the corresponding classification of Cantor group actions. It is recommended that the participants attend Talk 1 as a preparation for this talk.

Comments are closed.

<<　 　>>