TY - JOUR AU - M. Yu. Kokurin AU - V. V. Klyuchev TI - Necessary conditions for the power convergence rate of a class of iterative JO - Numerical methods and programming PY - 2002 SP - 93 EP - 109 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMP_2002_3_1_a5/ LA - ru ID - VMP_2002_3_1_a5 ER -