Seminar on A1-topology, motives and K-theory

On the Chow-Witt ring of the moduli stacks of pointed curves of genus one

by Lorenzo Mantovani (Universität Zürich)

Europe/Moscow
818-1526-4739 (Zoom)

818-1526-4739

Zoom

Description

Chow-Witt groups are a variation of Chow groups of an algebraic variety designed to capture quadratic information. We will outline how we can use a quadratic version of Totaro-Edidin-Graham equivariant intersection theory for computing the Chow-Witt rings of the moduli stack of elliptic curves and of it's Deligne-Mumford compactification.