TY - JOUR AU - N. Mahmetzhanov TI - Expansion of functions belonging to $L_p$ in the eigenfunctions of certain elliptic operators JO - Differencialʹnye uravneniâ PY - 1972 SP - 1825 EP - 1834 VL - 8 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1972_8_10_a12/ LA - ru ID - DE_1972_8_10_a12 ER -