{ "id": "1404.2127", "version": "v1", "published": "2014-04-08T13:44:48.000Z", "updated": "2014-04-08T13:44:48.000Z", "title": "Necessary conditions for reversed Dickson polynomials of the second kind to be permutational", "authors": [ "Shaofang Hong", "Xiaoer Qin" ], "comment": "13 pages", "categories": [ "math.NT" ], "abstract": "In this paper, we present several necessary conditions for the reversed Dickson polynomial $E_{n}(1, x)$ of the second kind to be a permutation of $\\mathbb{F}_{q}$. In particular, we give explicit evaluation of the sum $\\sum_{a\\in \\mathbb{F}_{q}}E_{n}(1,a)$.", "revisions": [ { "version": "v1", "updated": "2014-04-08T13:44:48.000Z" } ], "analyses": { "keywords": [ "reversed dickson polynomial", "second kind", "necessary conditions", "permutational" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1404.2127H" } } }