Picard modular forms via invariant theory

Date: 2022-06-03

Time: 11:00 - 12:00

Speaker

Fabien Cléry

Abstract

In previous work with Carel Faber and Gerard van der Geer, we showed how invariant theory can be used to generate all Siegel modular forms of degree 2 and 3. In this talk,
we will explain how invariant theory can again be used to construct all Picard modular forms in the case of signature (2,1). This is a joint work with Gerard van der Geer.