On oscillatory solutions of third-order linear differential equations
On perturbed iterative linear differential equations of order .
On proper oscillatory and vanishing-at-infinity solutions of differential equations with a deviating argument.
On proper oscillatory solutions of the nonlinear differential equations of the -th order
On properties of derivatives of the basic central dispersion in an oscillatory equation with an almost periodic coefficient
On properties of oscillatory solutions of non-linear differential equations of the n-th order
On property (B) of higher order delay differential equations
In this paper we offer criteria for property (B) and additional asymptotic behavior of solutions of the -th order delay differential equations Obtained results essentially use new comparison theorems, that permit to reduce the problem of the oscillation of the n-th order equation to the the oscillation of a set of certain the first order equations. So that established comparison principles essentially simplify the examination of studied equations. Both cases and are discussed.
On rectifiable oscillation of Euler type second order linear differential equations.
On relations among dispersions of an oscillatory differential equation
On Second Order Functional Differential Equations and Inequalities with Deviating Arguments.
On second order sublinear oscillation.
On second-order differential equations with nonhomogeneous -Laplacian.
On slow oscillation and nonoscillation in retarded equations.
On Slowly Varying Solutions Of The Linear Second Order Differential Equation
On some boundary value problems for second order nonlinear differential equations
We investigate two boundary value problems for the second order differential equation with -Laplacian where , are continuous positive functions on . We give necessary and sufficient conditions which guarantee the existence of a unique (or at least one) positive solution, satisfying one of the following two boundary conditions:
On some continuities of phases theory and WKB method for linear differential equation of the second order
On some problems in the oscillation theory of self-adjoint linear differential equations
On some properties of functions relative to the classes of certain factor spaces
On some properties of solutions of the disconjugate equation with an almost periodic coefficient
On some properties of solutions of the second order linear differential equations with periodic coefficients having a common oneparametric continuous group of dispersions