English

Explicitly bounding perfect powers in elliptic divisibility sequences

Number Theory 2023-10-23 v1

Abstract

In this paper we consider elliptic divisibility sequences generated by a point on an elliptic curve over Q\mathbb{Q} with jj-invariant 17281728 given by an integral short Weierstrass equation. For several different such elliptic divisibility sequences, we determine explicitly a finite set of primes such that for all primes ll outside this set, the elliptic divisibility sequence contains no ll-th powers. Our approach uses, amongst other ingredients, the modular method for Q\mathbb{Q}-curves. The corresponding explicit computations fit into a general computational framework for Q\mathbb{Q}-curves, for which they provide illustrative examples.

Keywords

Cite

@article{arxiv.2310.13244,
  title  = {Explicitly bounding perfect powers in elliptic divisibility sequences},
  author = {Sander R. Dahmen and Joey M. van Langen},
  journal= {arXiv preprint arXiv:2310.13244},
  year   = {2023}
}

Comments

23 pages

R2 v1 2026-06-28T12:56:27.138Z