Extension theory and the calculus of butterflies

DOI10.1016/j.jalgebra.2016.03.015zbMath1342.18027OpenAlexW2329406681MaRDI QIDQ290414

Alan S. Cigoli, Giuseppe Metere

Publication date: 1 June 2016

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

Full work available at URL: https://doi.org/10.1016/j.jalgebra.2016.03.015

zbMATH Keywords

CohomologyExtensionFibrationsObstruction theorySchreier-Mac Lane theoremTorsors

Mathematics Subject Classification ID

Cohomology of groups (20J06) Nonabelian homological algebra (category-theoretic aspects) (18G50) Fibered categories (18D30) Categories of algebras (08C05)

Related Items (7)

The third cohomology group of a monoid and admissible abstract kernels ⋮ On the classification of Schreier extensions of monoids with non-abelian kernel ⋮ The third cohomology \(2\)-group ⋮ On pseudofunctors sending groups to 2-groups ⋮ Distributors and the comprehensive factorization system for internal groupoids ⋮ Discrete and conservative factorizations in \textbf{Fib}\((B)\) ⋮ Fibred-categorical obstruction theory

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