### Algebraic Geometry Seminar, UC Davis

Melody Chan, Brown University

The top-weight rational cohomology of A_g

Organizer's time: 2021-05-04 11:00 America/Los_Angeles

Duration: 1 hour

I'll report on recent work using tropical techniques to find new rational cohomology classes in moduli spaces $A_g$ of abelian varieties, building on previous joint work with Soren Galatius and Sam Payne on $M_g$. I will try to give you a broad view. Joint work with Madeline Brandt, Juliette Bruce, Margarida Melo, Gwyneth Moreland, and Corey Wolfe.