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Flops on holomorphic symplectic fourfolds and determinantal cubic hypersurfaces

By Brendan Hassett and Yuri Tschinkel

Abstract

Let Σ be a K3 surface. Any birational map Σ �� � Σ extends to an automorphism; this follows from the uniqueness of minimal models for surfaces of non-negative Kodaira dimension. By the Torelli Theorem, the group of automorphisms of Σ isomorphic to the group of automorphism

Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.313.3624
Provided by: CiteSeerX
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