David Kerr (Universität Münster): Stable rank one in nonnuclear crossed products

mardi 24 mars 2026, 11:15 → 12:15 Europe/Paris

Salle 112 (Bâtiment Braconnier)

Abstract: We initiate an investigation into the local structure of simple nonnuclear C*-crossed products by showing that stable rank one is generic within two natural classes of minimal actions of free groups on the Cantor set. In order to establish this we develop some new tools at the intersection of ergodic theory and topological dynamics. Joint work with Jamie Bell and Shirly Geffen.