{ "id": "1406.2583", "version": "v2", "published": "2014-06-10T15:14:28.000Z", "updated": "2014-07-09T04:09:09.000Z", "title": "On the Enumeration of $(s,s+1,s+2)$-Core Partitions", "authors": [ "Jane Y. X. Yang", "Michael X. X. Zhong", "Robin D. P. Zhou" ], "comment": "20 pages", "categories": [ "math.CO", "math.NT" ], "abstract": "Anderson established a connection between core partitions and order ideals of certain posets by mapping a partition to its $\\beta$-set. In this paper, we give a characterization of the poset $P_{(s,s+1,s+2)}$ whose order ideals correspond to $(s,s+1,s+2)$-core partitions. Using this characterization, we obtain the number of $(s,s+1,s+2)$-core partitions, the maximum size and the average size of an $(s,s+1,s+2)$-core partition, confirming three conjectures posed by Amdeberhan.", "revisions": [ { "version": "v2", "updated": "2014-07-09T04:09:09.000Z" } ], "analyses": { "subjects": [ "05A15", "05A17", "06A07" ], "keywords": [ "core partition", "enumeration", "order ideals correspond", "characterization", "connection" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1406.2583Y" } } }