TY - JOUR AU - G. A. Gadzhiev TI - On the multiparametric spectral theory of a quadratic operator JO - Doklady Akademii Nauk PY - 1984 SP - 1055 EP - 1058 VL - 275 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1984_275_5_a5/ LA - ru ID - DAN_1984_275_5_a5 ER -