{ "id": "2202.06938", "version": "v1", "published": "2022-02-14T18:54:03.000Z", "updated": "2022-02-14T18:54:03.000Z", "title": "Equivariant Kazhdan-Lusztig theory of paving matroids", "authors": [ "Trevor Karn", "George Nasr", "Nicholas Proudfoot", "Lorenzo Vecchi" ], "categories": [ "math.CO" ], "abstract": "We study the way in which equivariant Kazhdan-Lusztig polynomials, equivariant inverse Kazhdan-Lusztig polynomials, and equivariant Z-polynomials of matroids change under the operation of relaxation of a collection of stressed hyperplanes. This allows us to compute these polynomials for arbitrary paving matroids, which we do in a number of examples, including various matroids associated with Steiner systems that admit actions of Mathieu groups.", "revisions": [ { "version": "v1", "updated": "2022-02-14T18:54:03.000Z" } ], "analyses": { "subjects": [ "05B35", "20C34" ], "keywords": [ "equivariant kazhdan-lusztig theory", "equivariant inverse kazhdan-lusztig polynomials", "equivariant kazhdan-lusztig polynomials", "mathieu groups", "equivariant z-polynomials" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }