科研之友
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摘要
Working over a commutative ground ring, we establish a Hochschild cohomology criterion for uniqueness of derived A(infinity)-algebra structures in the sense of Sagave. We deduce a Hochschild cohomology criterion for intrinsic formality of a differential graded algebra. This generalizes a classical result of Kadeishvili for the case of a graded algebra over a field.
- 出版日期2011
