{ "id": "0802.1408", "version": "v3", "published": "2008-02-11T11:07:11.000Z", "updated": "2008-10-28T23:39:05.000Z", "title": "Generalized induction of Kazhdan-Lusztig cells", "authors": [ "Jeremie Guilhot" ], "comment": "21 pages, 3 figures", "categories": [ "math.RT" ], "abstract": "Following Lusztig, we consider a Coxeter group $W$ together with a weight function. Geck showed that the Kazhdan-Lusztig cells of $W$ are compatible with parabolic subgroups. In this paper, we generalize this argument to some subsets of $W$ which may not be parabolic subgroups. We obtain two applications: we show that under specific technical conditions on the parameters, the cells of a certain finite parabolic subgroup of $W$ are cells in the whole group, and we decompose the affine Weyl group $\\tilde{G}_{2}$ into left and two-sided cells for a whole class of weight functions.", "revisions": [ { "version": "v3", "updated": "2008-10-28T23:39:05.000Z" } ], "analyses": { "keywords": [ "kazhdan-lusztig cells", "generalized induction", "weight function", "affine weyl group", "finite parabolic subgroup" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0802.1408G" } } }