Abstract
Solution of the linearized Generalized Master Equations and that of the linearized Boltzmann equation are compared in the vicinity of the dc limit. In addition to straightforward higher-order corrections, the former solution is shown to differ from the latter by an additional term which is made explicit for the dc conductivity to the lowest order in coupling to static random short-range impurities. Numerical estimate shows that this term (proportional to the first power of impurity concentration) may become non-negligible in realistic situations.
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