On the K-Theory of Cuntz–Krieger Algebras

  • David Pask

    University of Wollongong, Australia
  • Iain Raeburn

    University of Newcastle, Australia

Abstract

We extend the uniqueness and simplicity results of Cuntz and Krieger to the countably infinite case, under a row-finite condition on the matrix . Then we present a new approach to calculating the K-theory of the Cuntz–Krieger algebras, using the gauge action of , which also works when is a countably infinite - matrix. This calculation uses a dual Pimsner-Voiculescu six-term exact sequence for algebras carrying an action of . Finally, we use these new results to calculate the K-theory of the Doplicher–Roberts algebras.

Cite this article

David Pask, Iain Raeburn, On the K-Theory of Cuntz–Krieger Algebras. Publ. Res. Inst. Math. Sci. 32 (1996), no. 3, pp. 415–443

DOI 10.2977/PRIMS/1195162850