TY - JOUR AU - I. V. Konoval'tsev TI - Certain properties of a linear-fractional operator which has applications in the theory of difference schemes JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1970 SP - 753 EP - 759 VL - 10 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1970_10_3_a19/ LA - ru ID - ZVMMF_1970_10_3_a19 ER -