{ "id": "0810.4600", "version": "v1", "published": "2008-10-25T13:41:47.000Z", "updated": "2008-10-25T13:41:47.000Z", "title": "Ad-nilpotent Ideals and Equivalence Relations", "authors": [ "Chuying Fang" ], "categories": [ "math.RT", "math.CO" ], "abstract": "In this paper we study ad-nilpotent ideals of a complex simple Lie algebra $\\ccg$ and their connections with affine Weyl groups and nilpotent orbits. We define a left equivalence relation for ad-nilpotent ideals based on their normalizer and generators, and prove that the equivalence relation is compatible with the left cell structure of affine Weyl group of $\\ccg$ and Lusztig's star operator for type $\\tilde A_{n-1}$.", "revisions": [ { "version": "v1", "updated": "2008-10-25T13:41:47.000Z" } ], "analyses": { "keywords": [ "affine weyl group", "complex simple lie algebra", "lusztigs star operator", "left equivalence relation", "left cell structure" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0810.4600F" } } }