Grad Seminar

Thursday, September 19, 2019 1:00 pm - 1:00 pm EDT (GMT -04:00)

Adam Humeniuk, Department of Pure Mathematics, University of Waterloo

"C*-covers of semicrossed products"

A crossed product is a C*-algebra that encodes the way a group acts on another C*-algebra, or a topological space. In analogy, a semicrossed product encodes the way a semigroup acts on an operator algebra (semi-C*-algebra??). I'll tell you the story of the following question: Does a semicrossed product embed naturally into a crossed product? In a minimal way? With pictures, I'll show how we might answer this question in the affirmative for "Nica-covariant" semicrossed products over "lattice-ordered" abelian semigroups.

MC 5403