{ "id": "1911.12551", "version": "v1", "published": "2019-11-28T06:24:38.000Z", "updated": "2019-11-28T06:24:38.000Z", "title": "Rational Points on Rational Curves", "authors": [ "Brecken Beers", "Yih Sung" ], "comment": "10 pages", "categories": [ "math.NT", "math.AG" ], "abstract": "For a given elliptic curve, its associated $L$-function evaluated at $1$ is closely related to its real period. In this article, we generalize this principle to a rational curve. We count the rational points over all finite fields and use all the counting information to define two $L$-type series. Then we consider special values of these series at $1$. One of the $L$-type series matches the Dirichlet $L$-series of modulo $4$, so the evaluation at $1$ is $\\pi/4$; the special evaluation at $1$ of the other $L$-type series is equal to a real period associated to the rational curve. This identity confirms the general principle that an $L$-type series associated to a variety can reflect its geometry.", "revisions": [ { "version": "v1", "updated": "2019-11-28T06:24:38.000Z" } ], "analyses": { "subjects": [ "14G05", "11M41", "11F67" ], "keywords": [ "rational curve", "rational points", "real period", "type series matches", "identity confirms" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }