Description
Title: The low degree cohomology of compactifications of $A_g$
Abstract:
I will report on joint work with Samir Canning and Dan Petersen
determining which irreducible Galois representations can occur in the
low degree cohomology of any smooth toroidal compactification of $A_g$
or $X_{g,s}$, the $s$-fold fiber product of the universal abelian
variety.