Exact large ideals of B(G) are downward directed

Steven Kaliszewski, Magnus B. Landstad, John Quigg

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We prove that if E and F are large ideals of B(G) for which the associated coaction functors are exact, then the same is true for E ∩ F. We also give an example of a coaction functor whose restriction to the maximal coactions does not come from any large ideal.

Original languageEnglish (US)
Pages (from-to)4401-4412
Number of pages12
JournalProceedings of the American Mathematical Society
Issue number10
StatePublished - Oct 2016


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

ASJC Scopus subject areas

  • General Mathematics
  • Applied Mathematics


Dive into the research topics of 'Exact large ideals of B(G) are downward directed'. Together they form a unique fingerprint.

Cite this