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arXiv · 2303.00629

Decomposition numbers of 2-parts spin representations of symmetric groups in characteristic 2

Lucia Morotti
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Abstract

We give explicit formulas to compute most of the decomposition numbers of reductions modulo 2 of irreducible spin representations of symmetric groups indexed by partitions with at most 2 parts. In many of the still open cases small upper bounds are found.

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Lucia Morotti. 2023-03-01. Decomposition numbers of 2-parts spin representations of symmetric groups in characteristic 2. https://arxiv.org/abs/2303.00629

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