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We present a fast algorithm using the Y- transformation for calculating the conductance of large two-dimensional random resistor lattices. The procedure can also be used to calculate other quantities for which Y- transformations can be defined. As an example of the method's usefulness, we present extensive data on square random resistor lattices as large as 1000 bonds on a side. Using this data, we estimate that the conductivity exponent t=1. 303-₀. ₀₁₄^+0. 004 in two dimensions.
Frank et al. (Fri,) studied this question.