Natural extensions of semigroup actions and applications to periodic approximations

08.01.2025, 13:00  –  Haus 9, Raum 0.17 und Zoom
Forschungsseminar Diskrete Spektraltheorie

Miguel Donoso Echenique (UC Chile)

Abstract: We review the property of periodic approximations (PA) for groups, and generalize some results to semigroups. In order to do this, we develop the tool of natural extensions, dealing with both the topological and measure-theoretical contexts.