Résumé
In this paper we show how to produce a large number of representations of a graph C*-algebra in the space of the bounded linear operators in L-2(X, mu). These representations are very concrete and, in the case of graphs that satisfy condition (L), we use our techniques to realize the associated graph C*-algebra as a subalgebra of the bounded operators in L-2(R). We also show how to describe the Perron-Frobenius operator of ergodic theory in terms of the representations we associate to a graph. (C) 2012 Elsevier Inc. All rights reserved.