# Operator Theory Seminar

Speaker:
Sayan Das, University of California, Riverside
Topic:
Property ($T$) factors with trivial fundamental group

Abstract:
Motivated by Connes' rigidity conjecture, S. Popa conjectured in 2005 that fundamental groups of any property ($T$) group factor must be trivial. In this talk I shall give new examples of Property ($T$) group factors with trivial fundamental group.

This talk is partially based on a joint work with Ionut Chifan, Krishnendu Khan and Cyril Houdayer.

Event Date:
March 23, 2021 - 1:30pm to 2:20pm
Location:
Online
Calendar Category:
Seminar
Seminar Category:
Operator Theory