CRITICAL EXPONENTS OF THE DILUTED ISING-MODEL BETWEEN DIMENSIONS 2 AND 4

Within the massive field-theoretic renormalization-group approach the expressions for the beta and gamma functions of the anisotropic nut-ve ctor model are obtained for general space dimension d in three-loop ap proximation. Resumming corresponding asymptotic series, critical expon ents for the case of the weakly diluted quenched Ising model (m = 1, n = 0), as well as estimates for the marginal order parameter component number m, of the weakly diluted quenched m-vector model, are calculat ed as functions of d in the region 2 less than or equal to d < 4. Conc lusions concerning the effectiveness of different resummation techniqu es are drawn.