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Automorphisms of del Pezzo surfaces of degree 2 in characteristic 2 (2206.08913v2)
Published 17 Jun 2022 in math.AG
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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