TY - JOUR AU - S. A. Sayganova TI - On the problem with M.~Saigo operators on characteristics for a~degenerative hyperbolic equation JO - Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ PY - 2010 SP - 69 EP - 77 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VSGU_2010_6_a7/ LA - ru ID - VSGU_2010_6_a7 ER -