English

Rational points on $X^+_0(125)$

Number Theory 2022-12-27 v2 Algebraic Geometry

Abstract

We compute the rational points on the Atkin-Lehner quotient X0+(125)X^+_0(125) using the quadratic Chabauty method. Our work completes the study of exceptional rational points on the curves X0+(N)X^+_0(N) of genus between 2 and 6. Together with the work of several authors, this completes the proof of a conjecture of Galbraith.

Keywords

Cite

@article{arxiv.2205.14744,
  title  = {Rational points on $X^+_0(125)$},
  author = {Vishal Arul and J. Steffen Müller},
  journal= {arXiv preprint arXiv:2205.14744},
  year   = {2022}
}

Comments

8 pages; minor changes following referee report

R2 v1 2026-06-24T11:32:28.278Z