**SMS scnews item created by John Enyang at Tue 9 Apr 2013 1346**

Type: Seminar

Modified: Thu 11 Apr 2013 1210

Distribution: World

Expiry: 13 Apr 2013

**Calendar1: 12 Apr 2013 1205-1255**

**CalLoc1: Carslaw 373**

Auth: enyang@penyang.pc (assumed)

### Algebra Seminar

# Symmetric group algebras, Khovanov-Lauda-Rouquier algebras and Specht modules

### Lyle

###### Please note the revised time and location

###### Friday 12th April, 12:05-12:55pm, Carslaw 373

###### Speaker:

Sinéad Lyle (University of East Anglia)

###### Title:

Symmetric group algebras, Khovanov-Lauda-Rouquier algebras and Specht modules

###### Abstract:

The Khovanov-Lauda-Rouquier algebras are certain \(\mathbb{Z}\)-graded algebra which have been shown to be isomorphic to the cyclotomic Hecke algebras of type \(G(l,1,n)\), one example of which is the symmetric group algebra. As a consequence, we have a grading on the symmetric group algebra. The Specht modules have been shown to be graded, so as a consequence, we may talk about graded decomposition numbers.

In this talk, we introduce the KLR algebras and discuss some aspects of their representation theory.

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We will take the speaker to lunch after the talk.

See the Algebra Seminar web page for information about other seminars in the series.

John Enyang John.Enyang@sydney.edu.au