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arxiv: 1511.00345 · v1 · pith:ARQNDQOTnew · submitted 2015-11-02 · 🧮 math.AG

A stratification on the moduli of K3 surfaces in positive characteristic

classification 🧮 math.AG
keywords characteristicmodulipositivestratasurfacesadditionartinclasses
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We review the results on the cycle classes of the strata defined by the height and the Artin invariant on the moduli of K3 surfaces in positive characteristic obtained in joint work with Katsura and Ekedahl. In addition we prove a new irreducibility result for these strata.

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