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Journal of Algebraic Geometry

Journal of Algebraic Geometry

Online ISSN 1534-7486; Print ISSN 1056-3911



Local families of K3 surfaces and applications

Author: Keiji Oguiso
Journal: J. Algebraic Geom. 12 (2003), 405-433
Published electronically: February 25, 2003
MathSciNet review: 1966023
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Abstract | References | Additional Information

Abstract: We show the density of the jumping loci of the Picard number of the hyperkähler manifold under a small one-dimensional deformation. We then apply this to study certain hierarchy of the Mordell-Weil lattices of Jacobian K3 surfaces and the automorphism groups in a family of K3 surfaces.

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Additional Information

Keiji Oguiso
Affiliation: Department of Mathematical Sciences, University of Tokyo, 153-8914 Komaba Meguro, Tokyo, Japan

Received by editor(s): November 8, 2000
Published electronically: February 25, 2003
Dedicated: Dedicated to Professor Yujiro Kawamata on the occasion of his fiftieth birthday