Andrea Di Lorenzo: The Chow ring of the stack of stable curves of genus 2
Time: Wed 2019-10-30 13.15
Location: Sal 306, hus 6, Kräftriket, SU
Lecturer: Andra Di Lorenzo, Aarhus
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.