%0 Journal Article %A Kh. Abduvaitov %T On~bounded invertibility of a second-order differential operator %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1986 %P 189-190 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1986_41_2_a6/ %G en %F RM_1986_41_2_a6