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most citedThe adjoint of an even size matrix factors

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math.AC2003

Morita Contexts, Idempotents, and Hochschild Cohomology - with Applications to Invariant Rings -

Ragnar-Olaf Buchweitz

We investigate how to compare Hochschild cohomology of algebras related by a Morita context. Interpreting a Morita context as a ring with distinguished idempotent, the key ingredie…