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Hochschild cohomology and derived Picard groups |
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| Authors: | Bernhard Keller |
| Affiliation: | UFR De Mathématiques, Université Paris 7, UMR 7586 du CNRS, Case 7012, 2 Place Jussieu, Paris, Cedex 05 75251, France |
| Abstract: | We interpret Hochschild cohomology as the Lie algebra of the derived Picard group and deduce that it is preserved under derived equivalences. |
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