مجتبی سجادمنش

This paper is devoted to study of solutions of a Steklov problem for a threedimensional Helmholtz equation with an eigenvalue parameter λ in the non-local boundary conditions on the two-party smooth boundary of a connected bounded domain.The derived necessary conditions construct a system of second kind Fredholm integral equations with multi-dimensional singular integrals. Finally,a new method for regularization of these singularities is represented.