{ "id": "1209.1018", "version": "v2", "published": "2012-09-05T15:39:28.000Z", "updated": "2014-10-29T18:13:31.000Z", "title": "Identities between polynomials related to Stirling and harmonic numbers", "authors": [ "Bernd C. Kellner" ], "comment": "20 pages; extended and final revised version", "journal": "Integers 14, (2014), Article A54, 1-22", "categories": [ "math.NT" ], "abstract": "We consider two types of polynomials $F_n (x) = \\sum_{\\nu=1}^n \\nu! S_2(n,\\nu) x^\\nu$ and $\\hat{F}_n (x) = \\sum_{\\nu=1}^n \\nu! S_2(n,\\nu) H_\\nu x^\\nu$, where $S_2(n,\\nu)$ are the Stirling numbers of the second kind and $H_\\nu$ are the harmonic numbers. We show some properties and relations between these polynomials. Especially, the identity $\\hat{F}_n (-\\tfrac{1}{2}) = - (n-1)/2 \\cdot F_{n-1} (-\\tfrac{1}{2})$ is established for even $n$, where the values are connected with Genocchi numbers. For odd $n$ the value of $\\hat{F}_n (-\\tfrac{1}{2})$ is given by a convolution of these numbers. Subsequently, we discuss some of these convolutions, which are connected with Miki type convolutions of Bernoulli and Genocchi numbers, and derive some 2-adic valuations of them.", "revisions": [ { "version": "v1", "updated": "2012-09-05T15:39:28.000Z", "title": "Identities between Polynomials Related to Stirling and Harmonic Numbers", "abstract": "We consider two types of polynomials $F_n(x) = \\sum_{\\nu=1}^n \\nu! S_2(n,\\nu) x^\\nu$ and $\\hat{F}_n(x) = \\sum_{\\nu=1}^n \\nu! S_2(n,\\nu) H_\\nu x^\\nu$ where $S_2(n,\\nu)$ are the Stirling numbers of the second kind and $H_\\nu$ are the harmonic numbers. We show some relations between these polynomials and an identity between the special values $\\hat{F}_{2n}(-1/2)$ and $F_{2n-1}(-1/2)$, which are connected with Bernoulli numbers.", "comment": "9 pages", "journal": null, "doi": null }, { "version": "v2", "updated": "2014-10-29T18:13:31.000Z" } ], "analyses": { "subjects": [ "11B73", "11B83", "11B68" ], "keywords": [ "harmonic numbers", "polynomials", "special values", "bernoulli numbers" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1209.1018K" } } }