On the Structure of Some Reduced Amalgamated Free Product C*-Algebras

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We study some reduced free products of C*-algebras with amalgamations. We give sufficient conditions for the positive cone of the K_0 group to be the largest possible. We also give sufficient conditions for simplicity and uniqueness of trace. We use the later result to give a necessary and sufficient condition for simplicity and uniqueness of trace of the reduced C*-algebras of the Baumslag-Solitar groups BS(m,n).
23 pages

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Operator Algebras, Functional Analysis, 46L09

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http://salesiana.dossiersoluciones.com/handle/123456789/137149

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0705.3919
 http://arxiv.org/abs/0705.3919

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arXiv