{ "id": "1210.1562", "version": "v2", "published": "2012-10-04T19:53:43.000Z", "updated": "2012-10-15T18:17:13.000Z", "title": "On irreducible polynomials over finite fields", "authors": [ "Zhi-Wei Sun" ], "comment": "7 pages. Add a result on N_{n+1}(q)/N_n(q) and its proof", "categories": [ "math.NT", "math.CO" ], "abstract": "For n=1,2,3,... let N_n(q) denote the number of monic irreducible polynomials over the finite field F_q. We mainly show that the sequence N_n(q)^{1/n} (n>e^{3+7/(q-1)^2}) is strictly increasing and the sequence N_{n+1}(q)^{1/(n+1)}/N_n(q)^{1/n} (n>=5.835*10^{14}) is strictly decreasing. We also prove that if q>8 then N_{n+1}(q)/N_n(q) (n=1,2,3,...) is strictly increasing.", "revisions": [ { "version": "v2", "updated": "2012-10-15T18:17:13.000Z" } ], "analyses": { "subjects": [ "12E20", "05A10", "11B99", "11C99" ], "keywords": [ "finite field", "monic irreducible polynomials", "strictly increasing" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1210.1562S" } } }