TY - JOUR AU - O. A. Zhautykov TI - Construction by the reduction method of the characteristics of a~first-order partial differential equation with a~denumerable set of variables JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1960 SP - 127 EP - 140 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1960_3_a14/ LA - ru ID - IVM_1960_3_a14 ER -