{ "id": "2004.00045", "version": "v1", "published": "2020-03-31T18:14:45.000Z", "updated": "2020-03-31T18:14:45.000Z", "title": "Kazhdan-Lusztig polynomials and subexpressions", "authors": [ "Nicolas Libedinsky", "Geordie Williamson" ], "comment": "10 pages", "categories": [ "math.CO", "math.RT" ], "abstract": "We refine an idea of Deodhar, whose goal is a counting formula for Kazhdan-Lusztig polynomials. This is a consequence of a simple observation that one can use the solution of Soergel's conjecture to make ambiguities involved in defining certain morphisms between Soergel bimodules in characteristic zero (double leaves) disappear.", "revisions": [ { "version": "v1", "updated": "2020-03-31T18:14:45.000Z" } ], "analyses": { "subjects": [ "05E10" ], "keywords": [ "kazhdan-lusztig polynomials", "subexpressions", "simple observation", "soergels conjecture", "soergel bimodules" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }