A characterization of the cleft comodule triples

DOI10.1080/00927878808823589zbMath0648.16004OpenAlexW2142471081MaRDI QIDQ3792827

Emilio Villanueva Nóvoa, J. M. Fernández Vilaboa

Publication date: 1988

Published in: Communications in Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/00927878808823589

zbMATH Keywords

Hopf algebraprogeneratorsGalois H-objectssymmetric closed categorycleft right H-comodule triples

Mathematics Subject Classification ID

Category-theoretic methods and results in associative algebras (except as in 16D90) (16B50) Monads (= standard construction, triple or triad), algebras for monads, homology and derived functors for monads (18C15)

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Cohomological obstructions and weak crossed products over weak Hopf algebras ⋮ THE GROUP OF HOPF-GALOIS EXTENSIONS WITH CENTRAL INVARIANTS ⋮ Lax entwining structures, groupoid algebras and cleft extensions. ⋮ Weak \(C\)-cleft extensions and weak Galois extensions. ⋮ Some remarks about monoidal Hom-algebras ⋮ Unnamed Item

Cites Work

• A direct sum decomposition for the Brauer group of H-module algebras