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arXiv · 1912.09427

Composition factors of 2-parts spin representations of symmetric groups

Lucia Morotti
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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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Lucia Morotti. 2019-12-19. Composition factors of 2-parts spin representations of symmetric groups. https://arxiv.org/abs/1912.09427

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