Composition factors of 2-parts spin representations of symmetric groups

2019/12/19 by Morotti, Lucia
#FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1912.09427

Abstract

Given an odd prime p, we identify composition factors of the reduction modulo p of spin irreducible representations of the covering groups of symmetric groups indexed by partitions with 2 parts and find some decomposition numbers.

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