English

Uniform Bounds on S-Integral Torsion Points for $\mathbb{G}_m$ and Elliptic Curves

Number Theory 2026-01-30 v5 Dynamical Systems

Abstract

Let KK be a number field, SS a finite set of places. For Gm\mathbb{G}_m or an elliptic curve EE defined over KK, we establish uniformity results on the number of SS-integral torsion points relative to a non-torsion point β\beta, as β\beta varies over number fields of bounded degree. In particular for Gm\mathbb{G}_m, if DD is a positive integer, we prove a uniform bound on the degree of a torsion point ζ\zeta that is SS-integral relative to a non-torsion point β\beta with degree D\leq D.

Keywords

Cite

@article{arxiv.2302.01562,
  title  = {Uniform Bounds on S-Integral Torsion Points for $\mathbb{G}_m$ and Elliptic Curves},
  author = {Jit Wu Yap},
  journal= {arXiv preprint arXiv:2302.01562},
  year   = {2026}
}

Comments

Revised version according to referee's comments