Operator Theory Seminar

Speaker: 
Koichi Oyakawa
Topic: 
Bi-exactness of relatively hyperbolic groups

Abstract:

Bi-exactness is an analytic property of groups defined by Ozawa and of fundamental importance to the study of operator algebras. In this talk, I will show that finitely generated relatively hyperbolic groups are bi-exact if and only if all peripheral subgroups are bi-exact. This is a generalization of Ozawa's result which claims that finitely generated relatively hyperbolic groups are bi-exact if all peripheral subgroups are amenable.

Event Date: 
October 4, 2022 - 1:30pm to 2:20pm
Location: 
VAN 309 or Online (See URL)
Calendar Category: 
Seminar
Seminar Category: 
Operator Theory