Generalised hook lengths and Schur elements for Hecke algebras
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| author | Chlouveraki, Maria Gramain, Jean-Baptiste Jacon, Nicolas |
| author_facet | Chlouveraki, Maria Gramain, Jean-Baptiste Jacon, Nicolas |
| contents | We compare two generalisations of the notion of hook lengths for partitions. We apply this in the context of the modular representation theory of Ariki-Koike algebras. We show that the Schur element of a simple module is divisible by the Schur element of the associated (generalised) core. In the case of Hecke algebras of type $A$, we obtain an even stronger result: the Schur element of a simple module is equal to the product of the Schur element of its core and the Schur element of its quotient. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_19313 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Generalised hook lengths and Schur elements for Hecke algebras Chlouveraki, Maria Gramain, Jean-Baptiste Jacon, Nicolas Representation Theory Combinatorics 05E10, 20C08, 20C20 We compare two generalisations of the notion of hook lengths for partitions. We apply this in the context of the modular representation theory of Ariki-Koike algebras. We show that the Schur element of a simple module is divisible by the Schur element of the associated (generalised) core. In the case of Hecke algebras of type $A$, we obtain an even stronger result: the Schur element of a simple module is equal to the product of the Schur element of its core and the Schur element of its quotient. |
| title | Generalised hook lengths and Schur elements for Hecke algebras |
| topic | Representation Theory Combinatorics 05E10, 20C08, 20C20 |
| url | https://arxiv.org/abs/2406.19313 |