Period Map and Derived Invariants in Algebraic Geometry
Analysis
Key Takeaways
- •Establishes a connection between deformations of a scheme and its derived category.
- •Identifies the tangent map with the dual HKR map.
- •Proves derived invariance of liftability under certain conditions.
- •Exhibits cases where the deformation functor is a derived invariant.
“The paper identifies the tangent map with the dual HKR map and proves liftability along square-zero extensions to be a derived invariant.”