Original version
Journal of Functional Analysis. 2023, 284 (5):109795, DOI: https://doi.org/10.1016/j.jfa.2022.109795
Abstract
We study C*-irreducibility of inclusions of reduced twisted group C*-algebras and of reduced group C*-algebras. We characterize C*-irreducibility in the case of an inclusion arising from a normal subgroup, and exhibit many new examples of C*-irreducible inclusions.