{ "id": "2306.00460", "version": "v1", "published": "2023-06-01T09:03:09.000Z", "updated": "2023-06-01T09:03:09.000Z", "title": "Spirals of Riemann's Zeta-Function --Curvature, Denseness, and Universality--", "authors": [ "Athanasios Sourmelidis", "Jörn Steuding" ], "comment": "17 pages", "categories": [ "math.NT" ], "abstract": "This article deals with applications of Voronin's universality theorem for the Riemann zeta-function $\\zeta$. Among other results we prove that every plane smooth curve appears up to a small error in the curve generated by the values $\\zeta(\\sigma+it)$ for real $t$ where $\\sigma\\in(1/2,1)$ is fixed. In this sense, the values of the zeta-function on any such vertical line provides an atlas for plane curves. In the same framework, we study the curvature of curves generated from $\\zeta(\\sigma+it)$ when $\\sigma>1/2$ and we show that there is a connection with the zeros of $\\zeta'(\\sigma+it)$. Moreover, we clarify under which conditions the real and the imaginary part of the zeta-function are jointly universal.", "revisions": [ { "version": "v1", "updated": "2023-06-01T09:03:09.000Z" } ], "analyses": { "subjects": [ "11M06" ], "keywords": [ "riemanns zeta-function", "plane smooth curve appears", "voronins universality theorem", "small error", "imaginary part" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }