English

Rank growth of elliptic curves in nonabelian extensions

Number Theory 2018-10-10 v1

Abstract

Given an elliptic curve E/QE/\mathbb{Q}, it is a conjecture of Goldfeld that asymptotically half of its quadratic twists will have rank zero and half will have rank one. Nevertheless, higher rank twists do occur: subject to the parity conjecture, Gouv\^ea and Mazur constructed X1/2ϵX^{1/2-\epsilon} twists by discriminants up to XX with rank at least two. For any d3d\geq 3, we build on their work to consider twists by degree dd SdS_d-extensions of Q\mathbb{Q} with discriminant up to XX. We prove that there are at least XcdϵX^{c_d-\epsilon} such twists with positive rank, where cdc_d is a positive constant that tends to 1/41/4 as dd\to\infty. Moreover, subject to a suitable parity conjecture, we obtain the same result for twists with rank at least two.

Keywords

Cite

@article{arxiv.1810.04018,
  title  = {Rank growth of elliptic curves in nonabelian extensions},
  author = {Robert J. Lemke Oliver and Frank Thorne},
  journal= {arXiv preprint arXiv:1810.04018},
  year   = {2018}
}

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22 pages