College of Liberal Arts & Sciences
Operator Theory Seminar
Speaker:
Hui Tan (University of California San Diego)
Topic:
Spectral gap characterizations of property (T) for II_1 factors.
Abstract:
For property (T) II_1 factors, any inclusion into a tracial von Neumann algebra has spectral gap, and therefore weak spectral gap. I will discuss characterizations of property (T) for II_1 factors by weak spectral gap in inclusions. I will explain how this is related to the non-weakly-mixing property of the bimodules containing almost central vectors, from which we also obtain a characterization of property (T).
Event Date:
April 26, 2022 - 1:30pm to 2:20pm
Location:
VAN 309 or Online (See URL)
Calendar Category:
Seminar
Seminar Category:
Operator Theory