A note on the derived category of enriques surfaces in characteristic 2
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We show that the (twisted) derived category “recognizes” the three different kinds of Enriques surfaces in characteristic 2.
KeywordsDerived category Algebraic surfaces Characteristic 2
Mathematics Subject Classification14J28 14J20 14F05
I would like to thank Prof. C. Liedtke for asking me the question which this note answers at a conference in Berlin. I am also grateful to the unknown referee for many suggestions and improvements. It was him (or her) who encouraged me to pursue the variant of Theorem A proposed in the last section.
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