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arXiv · 1206.3850

Cohomology of algebras over weak Hopf algebras

J. N. Alonso Alvarez·J. M. Fernandez Vilaboa·R. Gonzalez Rodriguez
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Abstract

In this paper we present the Sweedler cohomology for a cocommutative weak Hopf algebra H. We show that the second cohomology group classifies completely the weak crossed products, having a common preunit, of H with a commutative left H-module algebra A.

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BibTeXRIS

J. N. Alonso Alvarez, J. M. Fernandez Vilaboa, R. Gonzalez Rodriguez. 2013-02-27. Cohomology of algebras over weak Hopf algebras. https://arxiv.org/abs/1206.3850

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