Hochschild cohomology and derived Picard groups
K-Theory and Homology
2007-05-23 v1 Algebraic Geometry
Abstract
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 equivalences.
Cite
@article{arxiv.math/0310221,
title = {Hochschild cohomology and derived Picard groups},
author = {Bernhard Keller},
journal= {arXiv preprint arXiv:math/0310221},
year = {2007}
}
Comments
15 pages, accepted for publication in JPAA