SMS scnews item created by Alexander Kerschl at Sun 9 Sep 2018 2155
Type: Seminar
Distribution: World
Expiry: 18 Nov 2018
Calendar1: 10 Sep 2018 1700-1800
CalLoc1: Carslaw 535A
Auth: kerschar@202.76.184.146.dynamic.rev.eftel.com (aker8037) in SMS-WASM

# MaPSS: Maths Postgraduate Seminar Series: Alexander Kerschl -- Graded Cellularity and Diagrams

Hello all,

The next MaPSS talk of this semester will be at 17:00 on Mon 10th September in Carslaw
535. It’s a great opportunity to meet fellow postgrads, listen to an interesting talk,
and of course get free food!

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Speaker: Alexander Kerschl

Abstract: In 1996 Graham and Lehrer introduced the concept of cellular algebras. This
structure is a powerful tool to study the representation theory of the underlying
algebra. So can all the simple modules just be found as quotients of the so called cell
modules. This comes, however, with the cost of us having to know the algebra well enough
already to see that it is cellular.

In modern representation theory we mostly work with diagram algebras though and most of
them are known to be cellular. As an example we will talk about the quiver Hecke algebra
of type A and the diagramatic Cherednik Algebra.

The aim of the talk is not necessarily to give a complete introduction, rather we want
to show that cellularity and diagrams can be used as great tools to understand problems
and do computations with them.

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See you there!

Details can also be found on the school’s new Postgraduate Society website:
http://www.maths.usyd.edu.au/u/MaPS/mapss.html

Cheers,
Alex


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