{ "id": "2404.00263", "version": "v1", "published": "2024-03-30T06:37:01.000Z", "updated": "2024-03-30T06:37:01.000Z", "title": "Triangular faces of the order and chain polytope of a maximal ranked poset", "authors": [ "Aki Mori" ], "comment": "7 pages, 1 figure", "categories": [ "math.CO" ], "abstract": "Let $\\mathscr{O}(P)$ and $\\mathscr{C}(P)$ denote the order polytope and chain polytope, respectively, associated with a finite poset $P$. We prove the following result: if $P$ is a maximal ranked poset, then the number of triangular $2$-faces of $\\mathscr{O}(P)$ is less than or equal to that of $\\mathscr{C}(P)$, with equality holding if and only if $P$ does not contain an $X$-poset as a subposet.", "revisions": [ { "version": "v1", "updated": "2024-03-30T06:37:01.000Z" } ], "analyses": { "subjects": [ "52B05", "06A07" ], "keywords": [ "maximal ranked poset", "chain polytope", "triangular faces", "order polytope", "finite poset" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable" } } }