{ "id": "1104.4953", "version": "v3", "published": "2011-04-26T15:57:36.000Z", "updated": "2012-05-03T08:06:06.000Z", "title": "A generalization of the Erdős-Turán law for the order of random permutation", "authors": [ "Alexander Gnedin", "Alexander Iksanov", "Alexander Marynych" ], "comment": "21 pages, submitted to Combinatorics, Probability and Computing", "categories": [ "math.PR", "math.CO" ], "abstract": "We consider random permutations derived by sampling from stick-breaking partitions of the unit interval. The cycle structure of such a permutation can be associated with the path of a decreasing Markov chain on $n$ integers. Under certain assumptions on the stick-breaking factor we prove a central limit theorem for the logarithm of the order of the permutation, thus extending the classical Erd\\H{o}s-Tur\\'an law for the uniform permutations and its generalization for Ewens' permutations associated with sampling from the PD/GEM$(\\theta)$ distribution. Our approach is based on using perturbed random walks to obtain the limit laws for the sum of logarithms of the cycle lengths.", "revisions": [ { "version": "v3", "updated": "2012-05-03T08:06:06.000Z" } ], "analyses": { "keywords": [ "random permutation", "erdős-turán law", "generalization", "central limit theorem", "cycle structure" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.4953G" } } }