Density of rational points on elliptic surfaces

Details Density of rational points on elliptic surfaces Density of rational points on elliptic surfaces

2010-09-22

arxiv.org/abs/1009.4306v1

Mathematics

Algebraic Geometry

7 pages

Scientific paper

Suppose V is a surface over a number field k that admits two elliptic fibrations. We show that for each integer d there exists an explicitly computable closed subset Z of V, not equal to V, such that for each field extension K of k of degree at most d over the field of rational numbers, the set V(K) is Zariski dense as soon as it contains any point outside Z. We also present a version of this statement that is universal over certain twists of V and over all extensions of k. This generalizes a result of Swinnerton-Dyer, as well as previous work of Logan, McKinnon, and the author.

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