Russian Mathematics (Iz. VUZ) №3, 1999

A.I.Bulgakov and L.I.Tkach. Perturbation of single-valued operator by a multivalued mapping of Hammerstein type with nonconvex images
A.I.Vagabov. Problem on oscillation of a finite string with a nonlinear perturbation
O.M.Dzhokhadze. A problem of the Darboux type in trihedral angle for a third order equation of hyperbolic type
G.G.Islamov. On polyhedral resolvability of a system of linear differential equations
Yu.A.Konyayev. Iterative method of analysis for nonlinear singularly perturbed initial and boundary value problems
A.D.Nakhman. On partial sums of the multiple Fourier series in the Jacobi polynomials
I.V.Shirokov. Investigation of stability of solutions of differential equations admitting a transitive symmetry group
M.Sh.Yakupov. Canonical des­cription and inversion of operators in discrete space. II
J.Godula and V.V.Starkov. To the regularity theorem for linear-invariant families of functions in a polydisk
A.B.Mikhailov. On two-point problem for a second order equation in partial derivatives with constant coefficients