Abstract
It is shown that the partition function for the lambda -state Potts model with pair interactions is related to the expected number of integer mod- lambda flows in a percolation model. The relation is generalised to the pair correlation function. The resulting high-temperature expansion coefficients are shown to be the flow polynomials of graph theory. The authors also prove an observation of Tsallis and Levy (1981) concerning the equivalent transmissivity of a cluster.

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