{ "id": "1605.05240", "version": "v1", "published": "2016-05-17T17:09:22.000Z", "updated": "2016-05-17T17:09:22.000Z", "title": "Permutational behavior of reversed Dickson polynomials over finite fields", "authors": [ "Kaimin Cheng" ], "comment": "16 pages. arXiv admin note: substantial text overlap with arXiv:1604.04557", "categories": [ "math.NT" ], "abstract": "In this paper, we use the method developed previously by Hong, Qin and Zhao to obtain several results on the permutational behavior of the reversed Dickson polynomial $D_{n,k}(1,x)$ of the $(k+1)$-th kind over the finite field ${\\mathbb F}_{q}$. Particularly, we present the explicit evaluation of the first moment $\\sum_{a\\in {\\mathbb F}_{q}}D_{n,k}(1,a)$. Our results extend the known results from the case $0\\le k\\le 3$ to the general $k\\ge 0$ case.", "revisions": [ { "version": "v1", "updated": "2016-05-17T17:09:22.000Z" } ], "analyses": { "keywords": [ "reversed dickson polynomial", "permutational behavior", "finite field", "th kind", "explicit evaluation" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }