On good reduction of some K3 surfaces related to abelian surfaces

Details On good reduction of some K3 surfaces related to abelian surfaces On good reduction of some K3 surfaces related to abelian surfaces

2012-02-11

arxiv.org/abs/1202.2421v1

Mathematics

Number Theory

21 pages

Scientific paper

The Neron--Ogg--Safarevic criterion for abelian varieties tells that whether an abelian variety has good reduction or not can be determined from the Galois action on its l-adic etale cohomology. We prove an analogue of this criterion for some special kind of K3 surfaces (those which admit Shioda--Inose structures of product type), which are deeply related to abelian surfaces. We also prove a p-adic analogue. This paper includes Ito's unpublished result for Kummer surfaces.

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