{ "id": "2208.10786", "version": "v1", "published": "2022-08-23T07:39:40.000Z", "updated": "2022-08-23T07:39:40.000Z", "title": "Functional equation, upper bounds and analogue of Lindelöf hypothesis for the Barnes double zeta-function", "authors": [ "Takashi Miyagawa" ], "comment": "15 pages, 2 figures", "categories": [ "math.NT" ], "abstract": "The functional equations of the Riemann zeta function, the Hurwitz zeta function, and the Lerch zeta function have been well known for a long time and there are great importance when studying these zeta-functions. For example, the fundamental upper bounds of these functions are obtained using functional equations. In this paper, we prove a functional equations of the Barnes double zeta-function $ \\zeta_2 (s, \\alpha ; v, w ) = \\sum_{m=0}^\\infty \\sum_{n=0}^\\infty (\\alpha+vm+wn)^{-s} $. Also, applying this functional equation and the Phragm\\'en-Lindel\\\"of convexity principle, we obtain some upper bounds for $ \\zeta_2(\\sigma + it, \\alpha ; v, w) \\ (0\\leq \\sigma \\leq 2) $ with respect to $ t $ as $ t \\rightarrow \\infty $.", "revisions": [ { "version": "v1", "updated": "2022-08-23T07:39:40.000Z" } ], "analyses": { "keywords": [ "functional equation", "barnes double zeta-function", "lindelöf hypothesis", "riemann zeta function", "hurwitz zeta function" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }