17 dec 2018 -- 14:30
Aula Tricerri, DiMaI, Firenze
Abstract.
The Nori fundamental group scheme of a scheme X is a profinite group scheme that "controls" torsors over X under finite group schemes. In the talk I will describe its category of representations by considering vector bundles with extra structure. I will also talk about a variant of this group, the local fundamental group scheme.