Stationary C*-Dynamical Systems

Group Actions and Dynamics
Event time: 
Monday, February 5, 2018 - 4:15pm to 5:15pm
Yair Hartman
Speaker affiliation: 
Northwestern university
Event description: 

We introduce the notion of stationary actionsin the context of C*-algebras, and prove a new characterization of C*-simplicity in terms of unique stationarity. This ergodic theoretical characterization provides an intrinsic understanding for the relation between C*-simplicity and the unique trace property, and provides a framework inwhich C*-simplicity and random walks interact.Joint work with Mehrdad Kalantar.