The top weight cohomology of $A_g$

Juliette Bruce (UC Berkeley)

02-Oct-2020, 19:00-20:00 (7 months ago)

Abstract: I will discuss recent work calculating the top weight cohomology of the moduli space $A_g$ of principally polarized abelian varieties of dimension $g$ for small values of $g$. The key idea is that this piece of cohomology is encoded combinatorially via the relationship between the boundary complex of a compactification of $A_g$ and the moduli space of tropical abelian varieties. This is joint work with Madeline Brandt, Melody Chan, Margarida Melo, Gwyneth Moreland, and Corey Wolfe.

algebraic geometry

Audience: researchers in the topic

( slides | video )

Stanford algebraic geometry seminar

Series comments: This seminar requires both advance registration, and a password. Register at Password: 362880

If you have registered once, you are always registered for the seminar, and can join any future talk using the link you receive by email. If you lose the link, feel free to reregister. This might work too:

More seminar information (including slides and videos, when available):

Organizer: Ravi Vakil*
*contact for this listing

Export talk to