TY - JOUR AU - D. A. Serkov AU - A. G. Chentsov TI - Programmed iteration method and operator convexity in an abstract retention problem JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2015 SP - 348 EP - 366 VL - 25 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2015_25_3_a4/ LA - ru ID - VUU_2015_25_3_a4 ER -