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arXiv · 2511.15951

Superelliptic degree sets over Henselian fields

Alexander Galarraga·Alexander Wang
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Abstract

Let $K$ be a discretely valued Henselian field. Creutz and Viray show that the degree set of a curve $C$ over a $p$-adic field can miss infinitely many multiples of the index of $C$, a phenomenon that cannot occur over finitely generated fields. For curves $C/K$ with a cyclic cover of $\mathbb{P}^1$ 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.

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Alexander Galarraga, Alexander Wang. 2025-11-20. Superelliptic degree sets over Henselian fields. https://arxiv.org/abs/2511.15951

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