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University of Cambridge > Talks.cam > Junior Algebra/Logic/Number Theory seminar > Endomorphism rings of some Young modules

## Endomorphism rings of some Young modulesAdd to your list(s) Download to your calendar using vCal - Jasdeep Kochhar, Royal Holloway
- Friday 28 October 2016, 15:00-16:00
- CMS, MR15.
If you have a question about this talk, please contact Nicolas DuprÃ©. Let $Sn$ be the symmetric group acting on the set $\{1,2,\ldots,n\}$. Let $K$ be a field of characteristic 2, and let $\lambda$ and $\mu$ be partitions of $n$ in at most two parts. Denote the permutation module corresponding to the Young subgroup $S\lambda$ in $Sn$ by $M\lambda$, and the indecomposable Young module corresponding to $\mu$ by $Y\mu$. In this talk, we will look at the algebra $\text{End}{K[S_n]}(Y\mu).$ We will do this using the primitive idempotents of $\text{End}{K[S_n]}(M\lambda),$ which were constructed by Doty, Erdmann and Henke in (J. Algebra 307(1): 377—396, 2007). This talk is part of the Junior Algebra/Logic/Number Theory seminar series. ## This talk is included in these lists:- All CMS events
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