TY - JOUR AU - K. B. Sabitov AU - F. Kh. Mukminov TI - The sign of the conormal derivative of a solution to a degenerating elliptic equation near a point of maximum JO - Differencialʹnye uravneniâ PY - 2000 SP - 844 EP - 847 VL - 36 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2000_36_6_a20/ LA - ru ID - DE_2000_36_6_a20 ER -