On superspecial hyperelliptic curves of genus 5 whose automorphism groups contain $(\mathbb{Z}/2\mathbb{Z})^3$
Algebraic Geometry
2026-03-24 v1 Number Theory
Abstract
While the numbers of superspecial curves of genus at most 3 are well understood, and several computational approaches have been developed to count superspecial curves of genus 4 with large automorphism groups, much less is known in higher genera. In this paper, we construct a feasible algorithm to enumerate superspecial hyperelliptic curves of genus 5 whose automorphism groups contain . We implement and executing our algorithm in Magma, we succeeded in enumerating such superspecial curves in every characteristic .
Cite
@article{arxiv.2603.21569,
title = {On superspecial hyperelliptic curves of genus 5 whose automorphism groups contain $(\mathbb{Z}/2\mathbb{Z})^3$},
author = {Ryo Ohashi and Momonari Kudo},
journal= {arXiv preprint arXiv:2603.21569},
year = {2026}
}
Comments
24 pages, comments welcome!