Title
On Hochschild cohomology and Morita deformations On Hochschild cohomology and Morita deformations
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
Subject
Mathematics
Source (journal)
International mathematics research notices
Volume/pages
(2009) :17 , p. 3221-3235
ISSN
1073-7928
ISI
000269205300004
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In this paper we show that, in general, first-order Morita deformations are too limited to capture the second Hochschild cohomology of a differential graded category. For differential graded categories with bounded above cohomology, the Morita deformations do constitute a part of the Hochschild cohomology.
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