{ "id": "2401.06516", "version": "v1", "published": "2024-01-12T11:30:57.000Z", "updated": "2024-01-12T11:30:57.000Z", "title": "Hook formula for Coxeter groups via the twisted group ring", "authors": [ "Leonardo C. Mihalcea", "Hiroshi Naruse", "Changjian Su" ], "comment": "12 pages", "categories": [ "math.RT", "math.CO", "math.GR", "math.RA" ], "abstract": "We use Kostant and Kumar's twisted group ring and its dual to formulate and prove a generalization of Nakada's colored hook formula for any Coxeter groups. For dominant minuscule elements of the Weyl group of a Kac--Moody algebra, this provides another short proof of Nakada's colored hook formula.", "revisions": [ { "version": "v1", "updated": "2024-01-12T11:30:57.000Z" } ], "analyses": { "subjects": [ "20F55", "05E16", "16S35" ], "keywords": [ "coxeter groups", "nakadas colored hook formula", "dominant minuscule elements", "weyl group", "kac-moody algebra" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }