J. Austral. Math. Soc.
72 (2002), 153160  
On graph C^{*}algebras
 
 
Abstract  
Certain
C^{*}algebras on generators and relations are
associated to directed graphs. For a finite graph
,
C^{*}algebra
is canonically isomorphic to CuntzKrieger
algebra corresponding to the adjacency matrix of
. It is shown that if a countably infinite graph is strongly connected, is simple and purely infinite.  
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