English

Superelliptic degree sets over Henselian fields

Number Theory 2025-11-27 v2 Algebraic Geometry

Abstract

Let KK be a discretely valued Henselian field. Creutz and Viray show that the degree set of a curve CC over a pp-adic field can miss infinitely many multiples of the index of CC, a phenomenon that cannot occur over finitely generated fields. For curves C/KC/K with a cyclic cover of P1\mathbb{P}^1 of prime degree, under mild assumptions, we completely characterize how and when this behavior can occur, and give a method for computing degree sets of curves of this type.

Keywords

Cite

@article{arxiv.2511.15951,
  title  = {Superelliptic degree sets over Henselian fields},
  author = {Alexander Galarraga and Alexander Wang},
  journal= {arXiv preprint arXiv:2511.15951},
  year   = {2025}
}

Comments

v2: updated reference formatting

R2 v1 2026-07-01T07:46:24.866Z