English

Geometric quadratic Chabauty over number fields

Number Theory 2023-03-16 v3 Algebraic Geometry

Abstract

This article generalizes the geometric quadratic Chabauty method, initiated over Q\mathbb{Q} by Edixhoven and Lido, to curves defined over arbitrary number fields. The main result is a conditional bound on the number of rational points on curves that satisfy an additional Chabauty type condition on the Mordell-Weil rank of the Jacobian. The method gives a more direct approach to the generalization by Dogra of the quadratic Chabauty method to arbitrary number fields.

Keywords

Cite

@article{arxiv.2108.05235,
  title  = {Geometric quadratic Chabauty over number fields},
  author = {Pavel Čoupek and David T. -B. G. Lilienfeldt and Zijian Yao and Luciena Xiao Xiao},
  journal= {arXiv preprint arXiv:2108.05235},
  year   = {2023}
}

Comments

Accepted Manuscript, to appear in Transactions of the American Mathematical Society. Minor changes in Section 7

R2 v1 2026-06-24T05:01:55.139Z