{ "id": "1104.1906", "version": "v2", "published": "2011-04-11T11:16:43.000Z", "updated": "2012-07-17T07:59:59.000Z", "title": "Sums of products of Ramanujan sums", "authors": [ "László Tóth" ], "comment": "13 pages, revised", "journal": "Annali dell' Universita di Ferrara, Volume 58, Number 1 (2012), 183-197", "doi": "10.1007/s11565-011-0143-3", "categories": [ "math.NT" ], "abstract": "The Ramanujan sum $c_n(k)$ is defined as the sum of $k$-th powers of the primitive $n$-th roots of unity. We investigate arithmetic functions of $r$ variables defined as certain sums of the products $c_{m_1}(g_1(k))...c_{m_r}(g_r(k))$, where $g_1,..., g_r$ are polynomials with integer coefficients. A modified orthogonality relation of the Ramanujan sums is also derived.", "revisions": [ { "version": "v2", "updated": "2012-07-17T07:59:59.000Z" } ], "analyses": { "subjects": [ "11A25", "11A07", "11N37" ], "keywords": [ "ramanujan sum", "th powers", "th roots", "modified orthogonality relation", "integer coefficients" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.1906T" } } }