{ "id": "1212.5375", "version": "v3", "published": "2012-12-21T10:00:11.000Z", "updated": "2014-03-03T16:31:45.000Z", "title": "Structure coefficients of the Hecke algebra of $(S_{2n},B_n)$", "authors": [ "Omar Tout" ], "comment": "32 pages, 15 figures", "categories": [ "math.CO" ], "abstract": "The Hecke algebra of the pair $(S_{2n},B_n)$, where $B_n$ is the hyperoctahedral subgroup of $S_{2n}$, was introduced by James in 1961. It is a natural analogue of the center of the symmetric group algebra. In this paper, we give a polynomiality property of its structure coefficients. Our main tool is a combinatorial universal algebra which projects on the Hecke algebra of $(S_{2n},B_n)$ for every $n$. To build it, we introduce new objects called partial bijections.", "revisions": [ { "version": "v3", "updated": "2014-03-03T16:31:45.000Z" } ], "analyses": { "subjects": [ "05E15" ], "keywords": [ "hecke algebra", "structure coefficients", "combinatorial universal algebra", "symmetric group algebra", "hyperoctahedral subgroup" ], "note": { "typesetting": "TeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1212.5375T" } } }