Published January 1, 2022
| Version v1
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Difference sheaves and torsors
Creators
- 1. Uniwersytet Warszawski, Inst Matematyki, Warsaw, Poland
- 2. Uniwersytet Wroclawski, Inst Matematy, Wroclaw, Poland
Description
We develop sheaf theory in the context of difference algebraic geometry. We introduce categories of difference sheaves and develop the appropriate cohomology theories. As specializations, we get difference Galois cohomology, difference Picard group and a good theory of difference torsors.
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