On the continuability of solutions of bidimensional systems.
On the controllability of a differential equation with delayed and advanced arguments.
On the convergence of a time-variant linear differential equation arising in identification
On the convergence of biorthogonal series corresponding to nonselfadjoint Sturm-Liouville operator with discontinuous coefficients.
On the convergence of expansions with respect to eigen-and adjoint functions of a non-self-adjoint Sturm-Liouville type operator with discontinuous coefficients.
On the convergence of multistep methods for nonlinear stiff differential equations.
On the convergence of multistep methods for nonlinear two-point boundary value problems
On the convergence of solutions of certain third-order differential equations.
On the convergence of solutions of random differential equations
On the Cordovan ogive
On the correct formulation of a nonlinear differential equation in Banach spaces.
On the correct solvability of the boundary-value problem for one class operator-differential equations of the fourth order with complex characteristics.
On the correctness of linear boundary value problems for systems of generalized ordinary differential equations.
On the correctness of nonlinear boundary value problems for systems of generalized ordinary differential equations.
On the correctness of the Cauchy problem for a linear differential system on an infinite interval.
On the coupling of elliptic and hyperbolic nonlinear differential equations
On the coupling of finite elements and boundary elements for transonic potential flow computations
On the critical case in oscillation for differential equations with a single delay and with several delays.
On the critical periods of Liénard systems with cubic restoring forces.
On the Darboux transformation. I.