Seminario Teoría de Grupos

Totally disconnected locally compact groups, accessibility and Euler-Poincaré characteristic

Ponente: Ilaria Castellano (University of Bielefeld)

Fecha: Miércoles, 25 de septiembre de 2024 - 10:30

Lugar: Sala 238, Facultad de Matemáticas, UCM

Resumen:

In the first part of the talk I will illustrate how the classical notion of accessibility for finitely generated groups carries over to the realm of compactly generated totally disconnected locally compact (= t.d.l.c.) groups. Then, by means of a new notion of Euler-Poincaré characteristic, I will discuss an accessibility result in the t.d.l.c. framework, under the assumption of rational discrete cohomological dimension = 1.