Views Navigation

Today

Shimura Varieties and Eigensheaves

Science Center 507 1 Oxford Street, Cambridge

The cohomology of Shimura varieties is a fundamental object of study in algebraic number theory by virtue of the fact that it is the only known geometric realization of the […]

On e-positivity of the chromatic symmetric function

MIT, Room 2-132

We prove a new signed elementary symmetric function expansion of the chromatic symmetric function. We then use sign-reversing involutions to prove e-positivity for graphs formed by joining cycles or cliques […]

Representation theory via geometry

Science Center 507 1 Oxford Street, Cambridge

Given a group G, a fundamental question is how to construct and understand its irreducible representations. A rich class of finite simple groups for which we can ask this question […]