TY - JOUR AU - A. A. Malov TI - Necessary conditions for satisfying a Hilbert-type inequality for an arbitrary radial function in a system of eigenfunctions of the Laplace operator JO - Differencialʹnye uravneniâ PY - 1993 SP - 87 EP - 94 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_1_a11/ LA - ru ID - DE_1993_29_1_a11 ER -