English

Computing binary curves of genus five

Algebraic Geometry 2022-02-17 v1 Number Theory

Abstract

Genus 5 curves can be hyperelliptic, trigonal, or non-hyperelliptic non-trigonal, whose model is a complete intersection of three quadrics in P4\mathbb{P}^4. We present and explain algorithms we used to determine, up to isomorphism over F2\mathbb{F}_2, all genus 5 curves defined over F2\mathbb{F}_2, and we do that separately for each of the three mentioned types. We consider these curves in terms of isogeny classes over F2\mathbb{F}_2 of their Jacobians or their Newton polygons, and for each of the three types, we compute the number of curves over F2\mathbb{F}_2 weighted by the size of their F2\mathbb{F}_2-automorphism groups.

Keywords

Cite

@article{arxiv.2202.07809,
  title  = {Computing binary curves of genus five},
  author = {Dušan Dragutinović},
  journal= {arXiv preprint arXiv:2202.07809},
  year   = {2022}
}
R2 v1 2026-06-24T09:40:06.885Z