An arithmetic valuative criterion for properness for tame stacks, and applications

Date: 2021-10-14

Time: 14:00 - 15:00

Speaker

Angelo Vistoli

Abstract

I will report on joint work in progress with Giulio Bresciani. I will present a valuative criterion for properness for tame stacks (in the sense of Abramovich, Olsson and Vistoli); although the statement will be clear to the experts, some of its consequences seem to be new, and surprising.