{ "id": "0910.4212", "version": "v1", "published": "2009-10-22T01:17:01.000Z", "updated": "2009-10-22T01:17:01.000Z", "title": "On Singletons and Adjacencies of Set Partitions of Type B", "authors": [ "William Y. C. Chen", "David G. L. Wang" ], "comment": "8 pages", "categories": [ "math.CO" ], "abstract": "We show that the joint distribution of the number of singleton pairs and the number of adjacency pairs is symmetric over the set partitions of type $B_n$ without zero-block, in analogy with the result of Callan for ordinary partitions.", "revisions": [ { "version": "v1", "updated": "2009-10-22T01:17:01.000Z" } ], "analyses": { "keywords": [ "set partitions", "ordinary partitions", "adjacency pairs", "singleton pairs" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0910.4212C" } } }