{ "id": "1106.2315", "version": "v1", "published": "2011-06-12T14:48:37.000Z", "updated": "2011-06-12T14:48:37.000Z", "title": "Set families with a forbidden induced subposet", "authors": [ "Edward Boehnlein", "Tao Jiang" ], "categories": [ "math.CO" ], "abstract": "For each poset $H$ whose Hasse diagram is a tree of height $k$, we show that the largest size of a family $\\cF$ of subsets of $[n]=\\{1,..., n\\}$ not containing $H$ as an induced subposet is asymptotic to $(k-1){n\\choose \\fl{n/2}}$. This extends the result of Bukh \\cite{bukh}, which in turn generalizes several known results including Sperner's theorem.", "revisions": [ { "version": "v1", "updated": "2011-06-12T14:48:37.000Z" } ], "analyses": { "subjects": [ "05D05" ], "keywords": [ "forbidden induced subposet", "set families", "hasse diagram", "turn generalizes", "sperners theorem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1106.2315B" } } }