{ "id": "math/9806057", "version": "v1", "published": "1998-06-10T19:13:51.000Z", "updated": "1998-06-10T19:13:51.000Z", "title": "Flag-symmetry of the poset of shuffles and a local action of the symmetric group", "authors": [ "Rodica Simion", "Richard P. Stanley" ], "comment": "34 pages, 6 figures", "categories": [ "math.CO" ], "abstract": "We show that the poset of shuffles introduced by Greene in 1988 is flag-symmetric, and we describe a \"local\" permutation action of the symmetric group on the maximal chains which is closely related to the flag symmetric function of the poset. A key tool is provided by a new labeling of the maximal chains of a poset of shuffles, which is also used to give bijective proofs of enumerative properties originally obtained by Greene. In addition we define a monoid of multiplicative functions on all posets of shuffles and describe this monoid in terms of a new operation on power series in two variables.", "revisions": [ { "version": "v1", "updated": "1998-06-10T19:13:51.000Z" } ], "analyses": { "subjects": [ "05A15", "05E05", "05E25" ], "keywords": [ "symmetric group", "local action", "flag-symmetry", "maximal chains", "flag symmetric function" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998math......6057S" } } }