{ "id": "math/0507610", "version": "v2", "published": "2005-07-29T15:26:22.000Z", "updated": "2006-04-08T12:37:32.000Z", "title": "The $\\hat W$-orbit of $ρ$, Kostant's formula for powers of the Euler product and affine Weyl groups as permutations of Z", "authors": [ "Paola Cellini", "Pierluigi Moseneder Frajria", "Paolo Papi" ], "comment": "Latex, 27 pages, minor corrections, to appear in Journal of Pure and Applied Algebra", "journal": "J. Pure Appl. Algebra 208 (2007), no. 3, 1103--1119.", "categories": [ "math.RT", "math.CO" ], "abstract": "Let an affine Weyl group $\\hat W$ act as a group of affine transformations on a real vector space V. We analyze the $\\hat W$-orbit of a regular element in V and deduce applications to Kostant's formula for powers of the Euler product and to the representations of $\\hat W$ as permutations of the integers.", "revisions": [ { "version": "v2", "updated": "2006-04-08T12:37:32.000Z" } ], "analyses": { "keywords": [ "affine weyl group", "euler product", "kostants formula", "permutations", "real vector space" ], "tags": [ "journal article" ], "note": { "typesetting": "LaTeX", "pages": 27, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......7610C" } } }