{ "id": "2210.14839", "version": "v1", "published": "2022-10-26T16:40:07.000Z", "updated": "2022-10-26T16:40:07.000Z", "title": "Cyclic descents, matchings and Schur-positivity", "authors": [ "Ron M. Adin", "Yuval Roichman" ], "comment": "20 pages, 2 figures", "categories": [ "math.CO" ], "abstract": "A new descent set statistic on involutions, defined geometrically via their interpretation as matchings, is introduced in this paper, and shown to be equi-distributed with the standard one. This concept is then applied to construct an explicit cyclic descent extensions on involutions, standard Young tableaux and Motzkin paths. Schur-positivity of associated quasi-symmetric functions follows.", "revisions": [ { "version": "v1", "updated": "2022-10-26T16:40:07.000Z" } ], "analyses": { "keywords": [ "schur-positivity", "explicit cyclic descent extensions", "descent set statistic", "standard young tableaux", "involutions" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }