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arXiv · 2401.05816

Decomposition numbers for weight 3 blocks of Iwahori--Hecke algebras of type B

Matthew Fayers·Lorenzo Putignano
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Abstract

Let B be a weight-$3$ block of an Iwahori--Hecke algebra of type B over any field. We develop the combinatorics of B to prove that the decomposition numbers for B are all 0 or 1.

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BibTeXRIS

Matthew Fayers, Lorenzo Putignano. 2024-01-11. Decomposition numbers for weight 3 blocks of Iwahori--Hecke algebras of type B. https://arxiv.org/abs/2401.05816

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