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arXiv · 2206.08913

Automorphisms of del Pezzo surfaces of degree 2 in characteristic 2

Igor Dolgachev·Gebhard Martin
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Abstract

We find normal forms for del Pezzo surfaces of degree $2$ over algebraically closed fields of characteristic $2$. For each normal form, we describe the structure of the group of automorphisms of the surface. In particular, we classify all finite groups that can act on such del Pezzo surfaces.

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Igor Dolgachev, Gebhard Martin. 2022-06-17. Automorphisms of del Pezzo surfaces of degree 2 in characteristic 2. https://arxiv.org/abs/2206.08913

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