{ "id": "1603.01736", "version": "v1", "published": "2016-03-05T15:40:35.000Z", "updated": "2016-03-05T15:40:35.000Z", "title": "Some Results on Superpatterns for Preferential Arrangements", "authors": [ "Yonah Biers-Ariel", "Yiguang Zhang", "Anant Godbole" ], "comment": "13 pages", "categories": [ "math.CO" ], "abstract": "A {\\it superpattern} is a string of characters of length $n$ that contains as a subsequence, and in a sense that depends on the context, all the smaller strings of length $k$ in a certain class. We prove structural and probabilistic results on superpatterns for {\\em preferential arrangements}, including (i) a theorem that demonstrates that a string is a superpattern for all preferential arrangements if and only if it is a superpattern for all permutations; and (ii) a result that is reminiscent of a still unresolved conjecture of Alon on the smallest permutation on $[n]$ that contains all $k$-permutations with high probability.", "revisions": [ { "version": "v1", "updated": "2016-03-05T15:40:35.000Z" } ], "analyses": { "subjects": [ "05D99" ], "keywords": [ "preferential arrangements", "superpattern", "smaller strings", "probabilistic results", "smallest permutation" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160301736B" } } }