{ "id": "0712.1782", "version": "v1", "published": "2007-12-11T17:50:46.000Z", "updated": "2007-12-11T17:50:46.000Z", "title": "Existence of rational points on smooth projective varieties", "authors": [ "Bjorn Poonen" ], "comment": "11 pages", "categories": [ "math.NT", "math.AG" ], "abstract": "Fix a number field k. We prove that if there is an algorithm for deciding whether a smooth projective geometrically integral k-variety has a k-point, then there is an algorithm for deciding whether an arbitrary k-variety has a k-point and also an algorithm for computing X(k) for any k-variety X for which X(k) is finite. The proof involves the construction of a one-parameter algebraic family of Chatelet surfaces such that exactly one of the surfaces fails to have a k-point.", "revisions": [ { "version": "v1", "updated": "2007-12-11T17:50:46.000Z" } ], "analyses": { "subjects": [ "14G05", "11G35", "11U05", "14G25", "14J20" ], "keywords": [ "smooth projective varieties", "rational points", "smooth projective geometrically integral k-variety", "number field", "arbitrary k-variety" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0712.1782P" } } }