Hochschild Cohomology of Triangular Matrix Algebras
Hochschild Cohomology of Triangular Matrix Algebras
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DOI:
10.1006/jabr.2000.8423
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发表时间:
2000-11
影响因子:
0.9
通讯作者:
S. Michelena;M. Platzeck
中科院分区:
文献类型:
--
作者:
S. Michelena;M. Platzeck
Abstract We study the Hochschild cohomology of triangular matrix rings B = R 0 A M R A , where A and R are finite dimensional algebras over an algebraically closed field K and M is an A-R-bimodule. We prove the existence of two long exact sequences of K-vector spaces relating the Hochschild cohomology of A, R, and B.