Coaction functors

Steven Kaliszewski, Magnus B. Landstad, John Quigg

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A certain type of functor on a category of coactions of a locally compact group on C*-algebras is introduced and studied. These functors are intended to help in the study of the crossed-product functors that have been recently introduced in relation to the Baum-Connes conjecture. The most important coaction functors are the ones induced by large ideals of the Fourier-Stieltjes algebra. It is left as an open problem whether the "minimal exact and Morita compatible crossed-product functor" is induced by a large ideal.

Original languageEnglish (US)
Pages (from-to)147-190
Number of pages44
JournalPacific Journal of Mathematics
Issue number1
StatePublished - 2016


  • Action
  • Coaction
  • Crossed product
  • Exact sequence
  • Fourier-Stieltjes algebra
  • Morita compatible

ASJC Scopus subject areas

  • Mathematics(all)


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