{ "id": "0810.3388", "version": "v1", "published": "2008-10-19T11:47:06.000Z", "updated": "2008-10-19T11:47:06.000Z", "title": "Labeled Partitions with Colored Permutations", "authors": [ "William Y. C. Chen", "Henry Y. Gao", "Jia He" ], "comment": "14 pages", "categories": [ "math.CO" ], "abstract": "In this paper, we extend the notion of labeled partitions with ordinary permutations to colored permutations in the sense that the colors are endowed with a cyclic structure. We use labeled partitions with colored permutations to derive the generating function of the $\\mathrm{fmaj}_k$ indices of colored permutations. The second result is a combinatorial treatment of a relation on the q-derangement numbers with respect to colored permutations which leads to the formula of Chow for signed permutations and the formula of Faliharimalala and Zeng [10] on colored permutations. The third result is an involution on permutations that implies the generating function formula for the signed q-counting of the major indices due to Gessel and Simon. This involution can be extended to signed permutations. In this way, we obtain a combinatorial interpretation of a formula of Adin, Gessel and Roichman.", "revisions": [ { "version": "v1", "updated": "2008-10-19T11:47:06.000Z" } ], "analyses": { "keywords": [ "colored permutations", "labeled partitions", "signed permutations", "second result", "combinatorial treatment" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0810.3388C" } } }