scientific article; zbMATH DE number 1924516

zbMath1019.18004MaRDI QIDQ4707054

Antonio R. Garzón, Antonio Martínez Cegarra

Publication date: 5 June 2003

Full work available at URL: https://eudml.org/doc/122825

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

Azumaya algebracrossed productfactor setgroup extensiongraded Hopf algebraClifford systemgraded bialgebramonoid extensionequivariant group cohomologygraded categorical groupgraded monoidal functorring-group extension

Mathematics Subject Classification ID

General structure theory for semigroups (20M10) Cohomology of groups (20J06) Graded rings and modules (associative rings and algebras) (16W50) Connections of semigroups with homological algebra and category theory (20M50) Separable algebras (e.g., quaternion algebras, Azumaya algebras, etc.) (16H05) Twisted and skew group rings, crossed products (16S35)

Related Items (4)

Realization-obstruction exact sequences for Clifford system extensions ⋮ Homotopy classification of braided graded categorical groups ⋮ Equivariant extensions of categorical groups ⋮ Equivariant homology and cohomology of groups

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