Rokhlin dimension for finite group actions - a survey
Speaker: Ilan Hirshberg, Ben-Gurion University of the Negev
Abstract: Suppose G is a finite group acting on a unital C*-algebra A. The Rokhlin property for such an action, introduced by Izumi, involves having partitions of unity given by projections, which are almost permuted by the group action and almost central. Rokhlin dimension is a generalization of the Rokhlin property, where the conditions on the partition of unity are relaxed. Namely, rather than projections, we require that the partitions of unity are given by positive elements, allowing for controlled overlaps. In this talk, I will explain what is finite Rokhlin dimension for finite group actions, why it is interesting, and conditions in which it does and does not hold.
Room Reservation Information
Room Number: 106 McAllister
Time: 2:30pm - 3:30pm