College of Liberal Arts & Sciences

# Algebra Seminar

Speaker:

Tathagata Basak, Iowa State University

Topic:

"A complex ball quotient and the monster"

**Abstract: **

Let $B$ be the unit ball in the standard 13-dimensional complex vector space. We shall talk about a ball quotient obtained by removing a locally finite collection of complex hyperplanes from $B$ and then quotienting the rest by the action of a discrete subgroup of $U(13,1)$. We shall state a conjecture that relates the fundamental group of this ball quotient and the monster simple group and describe our results towards this conjecture. This is joint work with Daniel Allcock.

Event Date:

October 2, 2017 - 3:30pm to 4:30pm

Location:

110 MLH

Calendar Category:

Seminar