TY - JOUR AU - V. V. Klyuchev TI - The necessary and sufficient conditions for the qualified convergence of difference methods for approximate solution of the ill-posed Cauchy problem in a~Banach space JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2009 SP - 56 EP - 60 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2009_4_a7/ LA - ru ID - IVM_2009_4_a7 ER -