K-theory of C*-algebras arising from commuting Hilbert bimodules and invariant ideals

Astrid an Huef, Abraham C. S. Ng, Aidan Sims

We study the K-theory of the Cuntz-Nica-Pimsner C*-algebra of a rank-two product system that is an extension determined by an invariant ideal of the coefficient algebra. We use a c…