BIRS Workshop Lecture Videos
Classification of Enriques surfaces with finite automorphism groups in characteristic 2. Katsura, Toshiyuki
In characteristic 0, S. Kondo classified Enriques surfaces with finite automorphism groups into seven types. In this talk, we consider Enriques surfaces with finite automorphism groups in characteristic 2, and give the complete classification of them. We have 4 types for singular Enriques surfaces, 5 types for supersingular Enriques surfaces and 8 types for classical Enriques surfaces. We also determine the structure of automorphism groups. This is a joint work with S. Kondo and G. Martin.
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