{ "id": "2008.01601", "version": "v1", "published": "2020-08-04T14:38:54.000Z", "updated": "2020-08-04T14:38:54.000Z", "title": "Asymptotic expansions of Kummer hypergeometric functions for large values of the parameters", "authors": [ "Nico M. Temme", "Raffaello Seri" ], "comment": "14 pages, 2 figures", "categories": [ "math.CA" ], "abstract": "We derive asymptotic expansions of the Kummer functions $M(a,b,z)$ and $U(a,b+1,z)$ for large positive values of $a$ and $b$, with $z$ fixed. For both functions we consider $b/a\\le 1$ and $b/a\\ge 1$, with special attention for the case $a\\sim b$. We use a uniform method to handle all cases of these parameters.", "revisions": [ { "version": "v1", "updated": "2020-08-04T14:38:54.000Z" } ], "analyses": { "subjects": [ "33C15", "41A60" ], "keywords": [ "kummer hypergeometric functions", "large values", "parameters", "derive asymptotic expansions", "kummer functions" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }