{ "id": "1312.5881", "version": "v1", "published": "2013-12-20T10:42:50.000Z", "updated": "2013-12-20T10:42:50.000Z", "title": "Asymptotic formulas and inequalities for gamma function in terms of tri-gamma function", "authors": [ "Cristinel Mortici", "Feng Qi" ], "comment": "6 pages", "categories": [ "math.CA" ], "abstract": "In the paper, the authors establish some asymptotic formulas and double inequalities for the factorial $n!$ and the gamma function $\\Gamma$ in terms of the tri-gamma function $\\psi'$.", "revisions": [ { "version": "v1", "updated": "2013-12-20T10:42:50.000Z" } ], "analyses": { "subjects": [ "26D15", "33B15", "41A10" ], "keywords": [ "asymptotic formulas", "tri-gamma function", "double inequalities" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1312.5881M" } } }