scientific article

zbMath0692.46066MaRDI QIDQ3034367

Alexander Kumjian

Publication date: 1988

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

zbMATH Keywords

Dixmier-Douady invariantMorita equivalencetwistsequivalence of categoriessecond cohomologytwist functoractions of a groupoid on elementary \(C^*\)- bundles fibred over its unit spacebifunctor Extequivariant sheaf cohomology of Grothendieckexistence of a long exact sequenceExtensions of groupoidsMackey obstructionsequence of right derived functors of the invariant section functor

Mathematics Subject Classification ID

Grothendieck groups, (K)-theory, etc. (16E20) Methods of algebraic topology in functional analysis (cohomology, sheaf and bundle theory, etc.) (46M20) General theory of (C^*)-algebras (46L05) Categories, functors in functional analysis (46M15)

Related Items (9)

An equivariant Brauer group and actions of groups on \(C^*\)-algebras ⋮ A Dixmier-Douady theorem for Fell algebras ⋮ Twisted geometric K-homology for proper actions of discrete groups ⋮ Cohomology for small categories: \(k\)-graphs and groupoids ⋮ Quantum Heisenberg manifolds as twisted groupoid \(C^\ast\)-algebras ⋮ Pushouts of extensions of groupoids by bundles of abelian groups ⋮ Twists over étale groupoids and twisted vector bundles ⋮ Hilbert \(C^*\) and \(W^*\)-modules and their morphisms ⋮ Groupoid cohomology and extensions

This page was built for publication: