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Twisted K3 surfaces in mixed and positive characteristic

Daniel Bragg, Berkeley
Tuesday, December 10, 2019 - 2:30pm to 3:30pm
PDL C-38

Deligne proved that every K3 surface in characteristic p lifts to characteristic 0. We will explain how to extend this to twisted K3 surfaces. We will also discuss some consequences for the geometry of moduli spaces of twisted K3 surfaces in mixed and positive characteristic.

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