On the automorphisms of some K3 surface double cover of the plane
Federica Galluzzi, Giuseppe Lombardo
Abstract
In this paper we study the automorphisms group of some K3 surfaces which are double covers of the projective plane ramified over a smooth sextic plane curve. More precisely, we study the case of a K3 surface of Picard rank two such that there is a rational curve of degree d which is tangent to the sextic in d points.
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