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Note on the rank of quadratic twists of Mordell equations

Sungkon Chang
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Abstract

14H52 : Elliptic curves Let E be the elliptic curve given by a Mordell equation y^2=x^3-A where A is an integer. For certain A, we use Stoll's formula to compute a lower bound for the proportion of square-free integers D up to X such that the Mordell-Weil rank of the quadratic twist by D is less than 2k, for given non-negative k. We also compute an upper bound for a certain average rank of quadratic twists of E.

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Sungkon Chang. 2005-09-30. Note on the rank of quadratic twists of Mordell equations. https://arxiv.org/abs/math/0510001

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