SEMINARIO DE TEORÍA DE GRUPOS

On the stabilisers of groups with micro-supported actions

Ponente: Francoeur Dominik (ENS de Lyon)

Fecha: martes, 02 de marzo de 2021 - 11:30

Lugar: Online - conectaha.csic.es/b/yag-mxb-nuz-m1o

Resumen: Given a group action by homeomorphisms on a topological space, one can wonder under which conditions two points have isomorphic stabilisers. We will answer this question in the case where the action is "micro-supported" and "sufficiently minimal", a class that includes many interesting examples, such as the Grigorchuk group, Thompson`s groups and topological full groups of Cantor minimal systems.