Critical transport anomalies in 4-ϵ and 6-ϵ dimensions

Abstract
The mode coupling equations for the time-dependent correlation functions are solved to lowest order in epsilon =dc-d for several models of critical dynamics where the 'conventional' theory is expected for the dimensionality d greater than dc. The results are in agreement with recent renormalization group calculations. New results are obtained for the tricritical behaviour of 3He-4He, as well as for the critical amplitude of various transport coefficients.