The largest automorphism group of del Pezzo surface of degree $2$ without points

Fuente: arXiv
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Main Author: Vikulova, Anastasia V.
Format: Preprint
Published: 2025
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author Vikulova, Anastasia V.
author_facet Vikulova, Anastasia V.
contents We construct an example of a field and a del Pezzo surface of degree $2$ over this field without points such that its automorphism group is isomorphic to $\mathrm{PSL}_2(\mathbb{F}_7) \times \mathbb{Z}/2\mathbb{Z},$ which is the largest possible automorphism group of del Pezzo surface of degree $2$ over an algebraically closed field of characteristic zero.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16267
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The largest automorphism group of del Pezzo surface of degree $2$ without points
Vikulova, Anastasia V.
Algebraic Geometry
We construct an example of a field and a del Pezzo surface of degree $2$ over this field without points such that its automorphism group is isomorphic to $\mathrm{PSL}_2(\mathbb{F}_7) \times \mathbb{Z}/2\mathbb{Z},$ which is the largest possible automorphism group of del Pezzo surface of degree $2$ over an algebraically closed field of characteristic zero.
title The largest automorphism group of del Pezzo surface of degree $2$ without points
topic Algebraic Geometry
url https://arxiv.org/abs/2501.16267