Buongiorno,
Vi ricordo che il prossimo seminario di Geometria e Topologia sarà tenuto da Pietro Capovilla e si terrà Martedì 10 Giugno alle ore 14:30 presso l'aula Riunioni.
Per gli interessati ad andare a pranzo con lo speaker, l'appuntamento è in atrio alle 12:45.
Allego titolo e abstract
Titolo: Combination theorems for open covers
Abstract: The generalized Lusternik-Schnirelmann category of a space is the minimal cardinality of open covers by subsets whose fundamental group is contained in a given family of groups. The goal of this talk is to present a combination theorem for generalized LS-categories of groups G in terms of the stabilizers of contractible CW-complex equipped with an action by G. This fact has applications to the geometric dimensions of groups and to the simplicial volume of manifolds obtained by gluing.
A presto,
Carlo e Filippo