Abstract.
We prove that the total K-theory group \( \underline {K}(-) = \oplus_{n=0}^{\infty} K_*(-;\Bbb {Z}/n) \) equipped with a natural order structure and acted upon by the Bockstein operations is a complete invariant for a class of approximately subhomogeneous C*-algebras of real rank zero which include the inductive limits of systems of the form \( P_{1} M_{n(1)} (C(X_{1})) P_{1} \longrightarrow P_{2} M_{n(2)} (C(X_{2})) P_{2} \longrightarrow \cdots \) where P i are selfadjoint projections in M n ( i )(C(X i )) and X i are finite (possibly disconnected) CW complexes whose dimensions satisfy a certain growth condition. The problem of finding suitable invariants for the study of C*-algebras of this type was proposed by Effros. Our result represents a substantial generalization of the classification theorem of approximately finite dimensional (AF) C*-algebras, due to Elliott.
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Submitted: June 1996, revised version: February 1997, final version: June 1997
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Dadarlat, M., Gong, G. A Classification Result for Approximately Homogeneous C*-algebras of Real Rank Zero. Geom. Funct. Anal. 7, 646–711 (1997). https://doi.org/10.1007/s000390050023
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DOI: https://doi.org/10.1007/s000390050023