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Embedding an AH-Algebra into a Simple C*-Algebra with Prescribed KK-Data
Authors:Huaxin Lin
Affiliation:(1) Department of Mathematics, East China Normal University, Shanghai, China;(2) Department of Mathematics, University of Oregon, Eugene, OR, 97403-1222, U.S.A.
Abstract:Let X be a connected finite CW complex. We show that, given a positive homomorphism agrisin Hom(K*(C(X)), K*(A)) with agr[1C(X)]le[1A], where A is a unital separable simple C*-algebra with real rank zero, stable rank one and weakly unperforated K0(A), there exists a homomorphism h: C(X)rarrA such that h induces agr. We also prove a structure result for unital separable simple C*-algebras A with real rank zero, stable rank one and weakly unperforated K0(A), namely, there exists a simple AH-algebra of real rank zero contained in A which determines the K-theory of A.
Keywords:emdedding  simple C*-algebras  KK-theory
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