{ "id": "1309.7379", "version": "v1", "published": "2013-09-27T22:03:08.000Z", "updated": "2013-09-27T22:03:08.000Z", "title": "Incomparable copies of a poset in the Boolean lattice", "authors": [ "Gyula O. H. Katona", "Dániel T. Nagy" ], "comment": "8 pages", "categories": [ "math.CO" ], "abstract": "Let $B_n$ be the poset generated by the subsets of $[n]$ with the inclusion as relation and let $P$ be a finite poset. We want to embed $P$ into $B_n$ as many times as possible such that the subsets in different copies are incomparable. The maximum number of such embeddings is asymptotically determined for all finite posets $P$ as $\\frac{{n \\choose \\lfloor n/2\\rfloor}}{M(P)}$, where $M(P)$ denotes the minimal size of the convex hull of a copy of $P$. We discuss both weak and strong (induced) embeddings.", "revisions": [ { "version": "v1", "updated": "2013-09-27T22:03:08.000Z" } ], "analyses": { "subjects": [ "05D05" ], "keywords": [ "boolean lattice", "incomparable copies", "finite poset", "maximum number", "embeddings" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1309.7379K" } } }