College of Liberal Arts & Sciences
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