Operator Algebra seminar

Speaker:  Rostislav Grigorchuk (Texas A&M University)

Title: On diagonal actions of branch groups and the corresponding characters

Abstract: I will explain why branch groups have at least countably many ergodic invariant random subgroups and at least countably many indecomposable characters (and hence factor representations). Some other topics will be discussed as well. 

Joint work with Artem Dudko.