%0 Journal Article %A A. G. Aslanyan %T The monotonicity of the first eigenvalue of non-self-adjoint problem and as the domain expands %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1967 %V 22 %N 3 %U http://geodesic.mathdoc.fr/item/RM_1967_22_3_a6/ %G ru %F RM_1967_22_3_a6