English

Bounds on the Chabauty--Kim Locus of Hyperbolic Curves

Number Theory 2023-10-10 v2

Abstract

Conditionally on the Tate--Shafarevich and Bloch--Kato Conjectures, we give an explicit upper bound on the size of the pp-adic Chabauty--Kim locus, and hence on the number of rational points, of a smooth projective curve X/QX/\mathbb{Q} of genus g2g\geq2 in terms of pp, gg, the Mordell--Weil rank rr of its Jacobian, and the reduction types of XX at bad primes. This is achieved using the effective Chabauty--Kim method, generalising bounds found by Coleman and Balakrishnan--Dogra using the abelian and quadratic Chabauty methods.

Keywords

Cite

@article{arxiv.2206.11085,
  title  = {Bounds on the Chabauty--Kim Locus of Hyperbolic Curves},
  author = {L. Alexander Betts and David Corwin and Marius Leonhardt},
  journal= {arXiv preprint arXiv:2206.11085},
  year   = {2023}
}

Comments

24 pages, comments welcome