The cohomology structure of string algebras
Juan Carlos Bustamante
math.KTarXiv:math/0410123
Abstract
We show that the graded commutative ring structure of the Hochschild cohomology HH*(A) is trivial in case A is a triangular quadratic string algebra. Moreover, in case A isgentle, the Lie algebra structure on HH*(A) is also trivial.
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