The ordered K_0-group of a graph C*-algebra

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We calculate the ordered K_0-group of a graph C*-algebra and mention applications of this result to AF-algebras, states on the K_0-group of a graph algebra, and tracial states of graph algebras.
6 pages, uses XY-pic. An error in Theorem 2.2 was corrected. At the referee's suggestion the paper was shortened and the title changed

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Operator Algebras, 46L55

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http://salesiana.dossiersoluciones.com/handle/123456789/63745

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0204095
 http://arxiv.org/abs/math/0204095
 C. R. Math. Acad. Sci. Soc. R. Can. 25 (2003), 19--25

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arXiv