College of Liberal Arts & Sciences

# Operator Theory Seminar

Speaker:

Zhuang Niu (Wyoming)

Topic:

Structure of Transformation Group $C^*$-Algebras

**Abstract:**

Consider a minimal and free action of a discrete amenable group on a compact metrizable space. The corresponding crossed product $C^*$-algebra is a simple unital separable stably finite $C^*$-algebra, and in the talk I will focus on the structure of this $C^*$-algebra. In particular, I will talk about the classifiability and radius of comparison in terms of the mean dimension of the dynamical system, and I will also talk about the stable rank of this $C^*$-algebra.

Event Date:

February 16, 2021 - 1:30pm to 2:20pm

Location:

Online

Calendar Category:

Seminar

Seminar Category:

Operator Theory