Analysis Seminar

Chris Schafhauser, Department of Pure Math, University of Waterloo

“Quasidiagonal Traces and Crossed Products”

A trace on a C*-algebra is quasidiagonal if it can be approximated by traces on finite dimensional C*-algebras through completely positive maps. We will discuss what is known and not known about quasidiagonal traces and give some partial results for traces on crossed product C*-algebras. The strongest results are for crossed products given by integer actions on AF-algebras.

MC 5417