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math.KT2003★ 3 cited
Hochschild cohomology and derived Picard groups
Bernhard Keller
We interpret Hochschild cohomology as the Lie algebra of the derived Picard group (in the sense of Rouquier-Zimmermann and Yekutieli) and deduce that it is preserved under derived…
math.KT1998
On the cyclic homology of ringed spaces and schemes
Bernhard Keller
We prove that the cyclic homology of a scheme with an ample line bundle coincides with the cyclic homology of its category of algebraic vector bundles. As a byproduct of the proof,…