Speaker
Georges Skandalis
(Université Paris Diderot)
Description
Associated to a groupoid is a natural cyclic set. Actually, one can give several characterisations of groupoids based on this set. It also gives a nice interpretation of well known notions of on groupoids: symplectic groupoids, duals of VB groupoids and in particular the Weinstein groupoid... Joint work with Claire Debord.
https://sites.google.com/view/julgfest