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Andrea Di Lorenzo: The Chow ring of the stack of stable curves of genus 2

Tid: On 2019-10-30 kl 13.15

Plats: Sal 306, hus 6, Kräftriket, SU

Medverkande: Andra Di Lorenzo, Aarhus

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Abstract

There is by now an extensive theory of rational Chow rings of moduli spaces of smooth curves. The integral version of these Chow rings is not as well understood. I will survey what is known. In the last part of the talk I will discuss the Chow ring of the stack of stable curves of genus 2, which has been recently calculated by Eric Larson. I will present a different approach to the calculation, which offers an interesting point of view on the stack of stable curves of genus 2. This part is joint work with Angelo Vistoli.

Tillhör: Stockholms Matematikcentrum
Senast ändrad: 2019-10-24