Oscillatory properties of fourth order Sturm-Liouville differential equations
This paper deals with the second order nonlinear neutral differential inequalities :
A sufficient condition for the nonoscillation of nonlinear systems of differential equations whose left-hand sides are given by -th order differential operators which are composed of special nonlinear differential operators of the first order is established. Sufficient conditions for the oscillation of systems of two nonlinear second order differential equations are also presented.
The purpose of this paper is to obtain oscillation criterions for the differential system of neutral type.
The paper deals with the higher-order ordinary differential equations and the analogous higher-order difference equations and compares the corresponding fundamental concepts. Important dissimilarities appear for the moving frame method.