Obstructions to lifting cocycles on groupoids and the associated $C^*$-algebras

zbMath1391.46072arXiv1612.07257MaRDI QIDQ4601566

Alexander Kumjian, Marius V. Ionescu

Publication date: 16 January 2018

Full work available at URL: https://arxiv.org/abs/1612.07257

zbMATH Keywords

\(C^*\)-algebraDixmier-Douady invariantgroupoidcocycletwist

Mathematics Subject Classification ID

Noncommutative dynamical systems (46L55) Algebraic ergodic theory, cocycles, orbit equivalence, ergodic equivalence relations (37A20) Automorphisms of selfadjoint operator algebras (46L40)

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