Monstrous Moonshine Spring 2021

Prof. Rahul Pandharipande
Tim-Henrik Buelles


The goal of this seminar is to understand the famous McKay equation $$196884 = 196883 + 1\,. $$ The left-hand side is the first non-trivial coefficient of the modular invariant \(j\)-function. On the right hand-side are the dimensions of the smallest irreducible representations of the largest sporadic simple group, the Monster group \(\mathbb{M}\).

All necessary information can be found here.


Talks will take place Friday 12:00 - 14:00 (CET) via Zoom. If you are interested in participating, please send a mail to the organizer (buelles(at) to receive the Zoom ID and password.

Talk Speaker Date
Modular forms Adrian Spiess 05 March
Lattices I Ruilong Wäckerlin 12 March
Lattices II Lukas Oestmann 19 March
Group Theory Julian Huber, Nadja Häusermann 26 March
Lie Theory I Reto Kaufmann 16 April
Lie Theory II Silvio Barandun 23 April
Classification of simple groups Gaspard Mudry 30 April
The Monster group Nico Ehrler 07 May
Vertex Operator Algebras I Ole Spjeldnæs 14 May
Vertex Operator Algebras II Lukas Bertsch 21 May
Vertex Operator Algebras III Leon Staresinic 28 May
The Monster VOA Malcolm Cameron 04 June