English

Algorithms for hyperelliptic Mumford Curves $p$-adic Uniformization, $p$-adic integrals and $p$-adic heights

Number Theory 2026-07-02 v1 Algebraic Geometry

Abstract

Mumford curves generalize the Tate uniformization of elliptic curves with split multiplicative reduction and provide p-adic analogues of the uniformization of Riemann surfaces. In this paper, we present several algorithms for hyperelliptic Mumford curves. For a given hyperelliptic Mumford curve XX defined over a finite extension of the field of p-adic numbers for some p2p\neq 2, we first describe how to compute a p-adic Schottky group W that uniformizes X; this is based on our extension to Kadziela's approximation theorem. As applications, we explain how to use this uniformization in order to compute p-adic Abelian integrals and pp-adic Schneider heights on X; the latter uses Werner's formula expressing the p-part of the Schneider height in terms of theta functions. We illustrate our algorithms with numerical examples computed using the computer algebra system SageMath.

Cite

@article{arxiv.2607.02160,
  title  = {Algorithms for hyperelliptic Mumford Curves $p$-adic Uniformization, $p$-adic integrals and $p$-adic heights},
  author = {Enis Kaya and Marc Masdeu and J. Steffen Müller and Marius van der Put},
  journal= {arXiv preprint arXiv:2607.02160},
  year   = {2026}
}
R2 v1 2026-07-22T20:22:04.987Z