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Preprint Sep 2026

Local Ocneanu rigidity for separable algebra objects

We establish local Ocneanu rigidity for separable algebra objects in Hom-finite monoidal categories C over an algebraically closed field k. A separability morphism contracts the first two Hochschild cohomology groups without requiring an abelian ambient category. Separable algebra structures and homomorphisms from sepa...

T. Azzouz, Mainak Ghosh, S. Palcoux · 1 citation · ⚡1

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