Description

Mathematics Colloquium II.

Speaker: Tathagata Basak.

Affiliation: Iowa State University.

Date and Time: Friday 25 October, 4:00 pm - 5:00 pm.

Venue: Ramanujan Hall, Department of Mathematics.

Title: A couple of curious reflection groups.

Abstract: Reflection groups occur all over representation theory and
geometry. We want to begin with a quick survey of finite reflection
groups, talk a little about classifying them and their connections to some
other areas of mathematics.

Then we want to focus on two examples of hyperbolic reflection groups; one
real and one complex. Both examples involve the Leech lattice; the lattice
that produces the best packing of spheres in 24 dimensional Euclidean
space. Both examples are (probably) related to the largest sporadic finite
simple group known as the monster. The connection in the complex case is
still a conjecture.

We will not assume any previous familiarity with hyperbolic reflection
groups or the Leech lattice or the Monster.

Description

Ramanujan Hall, Department of Mathematics

Date

Fri, October 25, 2019

Start Time

4:00pm-5:00pm IST

Duration

1 hour

Priority

5-Medium

Access

Public

Created by

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Updated

Mon, October 21, 2019 11:51am IST