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arxiv: 0902.1548 · v2 · submitted 2009-02-09 · 🧮 math.AG · math.NT

Ordinary reduction of K3 surfaces

classification 🧮 math.AG math.NT
keywords fieldordinaryreductionalgebraicdensityeveryexistsextension
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Let X be a K3 surface over a number field K. We prove that there exists a finite algebraic field extension L/K such that X has ordinary reduction at every non-archimedean place of L outside a density zero set of places.

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