Sweedler cohomology

General Introduction

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Online References

arXiv:1206.3850 Cohomology of algebras over weak Hopf algebras from arXiv Front: math.CT by J. N. Alonso Alvarez, J. M. Fernandez Vilaboa, R. Gonzalez Rodriguez 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, with a common preunit, of H with a commutative left H-module algebra A.

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Paper References

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Definition

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Properties

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Standard theorems

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Open Problems

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Connections to Number Theory

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Computations and Examples

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History and Applications

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Some Research Articles

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Other Information

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General Introduction