On the methods of solving heterogeneous equations of generalized perturbation theory

Analysis of the efficiency of different methods for solving heterogeneous equations of generalized perturbation theory used for determination of nuclear reactor critical parameters is conducted. An algorithm for solving these equations by means of two-layer Tschebyscheff extrapolation is developed. The problem of internal and external iteration coordination is considered. The rate of convergence of each method is analytically and numerically evaluated. High efficiency of the Tschebyscheff polynomial method use for solving heterogeneous equations of generalized perturbation theory is displayed