Abstract
In this paper we investigate the 2-Selmer rank in families of quadratic twists of elliptic curves over arbitrary number fields. We give sufficient conditions on an elliptic curve so that it has twists of arbitrary 2-Selmer rank, and we give lower bounds for the number of twists (with bounded conductor) that have a given 2-Selmer rank. As a consequence, under appropriate hypotheses we can find many twists with trivial Mordell-Weil group, and (assuming the Shafarevich-Tate conjecture) many others with infinite cyclic Mordell-Weil group. Using work of Poonen and Shlapentokh, it follows from our results that if the Shafarevich-Tate conjecture holds, then Hilbert’s Tenth Problem has a negative answer over the ring of integers of every number field.
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This material is based upon work supported by the National Science Foundation under grants DMS-0700580 and DMS-0757807.
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Mazur, B., Rubin, K. Ranks of twists of elliptic curves and Hilbert’s tenth problem. Invent. math. 181, 541–575 (2010). https://doi.org/10.1007/s00222-010-0252-0
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DOI: https://doi.org/10.1007/s00222-010-0252-0