Analysis Seminar

Jaspar Wiart, Department of Pure Mathematics, University of Waterloo

"The Jacobson Radical of Certain Semicrossed Products"

We study the Jacobson radical of the semicrossed product $A\times_\alpha P$ when $A$ is a simple C*-algebra and $P$ is either a subsemigroup of an abelian group or a free semigroup. A full characterization is obtained for a large subset of these semicrossed products and we apply our results to a number of examples.

MC 5417