Oscillation theorems for nonlinear differential equations of second order.
Oscillation theorems for nonlinear second order differential equations with a damping term
Oscillation Theorems for Perturbed Second Order Nonlinear Differential Equations with Damping
Some oscillation criteria for solutions of a general perturbed second order ordinary differential equation with damping (r(t)x′ (t))′ + h(t)f (x)x′ (t) + ψ(t, x) = H(t, x(t), x′ (t)) with alternating coefficients are given. The results obtained improve and extend some existing results in the literature.
Oscillation theorems for second order nonlinear delay inequalities
Oscillation Theorems for Second Order Sublinear Ordinary Differential Equations
Oscillation criteria are given for the second order sublinear non-autonomous differential equation. (r(t) (x)x′(t))′ + q(t)g(x(t)) = (t). These criteria extends and improves earlier oscillation criteria of Kamenev, Kura, Philos and Wong. Oscillation criteria are also given for second order sublinear damped non-autonomous differential equations.
Oscillation theorems for third order nonlinear differential equations
Oscillation theorems of comparison type for neutral nonlinear functional differential equations
Oscillation theorems of comparison type of delay differential equations with a nonlinear damping term
Oscillations de systèmes hamiltoniens non linéaires. III
Oscillations forcées de systèmes hamiltoniens non linéaires
Oscillations of all solutions of functional differential inequalities
Oscillations of differential equation with retarded argument
Oscillations of First-Order Neutral Equations with Variable Coefficients.
Oscillations of functional differential equations.
Oscillations of higher order differential equations of neutral type
In this paper, sufficient conditions have been obtained for oscillation of solutions of a class of th order linear neutral delay-differential equations. Some of these results have been used to study oscillatory behaviour of solutions of a class of boundary value problems for neutral hyperbolic partial differential equations.
Oscillations of higher order neutral differential equations
Oscillations of n-th order retarded differential equations.
Oscillations of superlinear differential equations with deviating arguments
Oscillations presque-périodiques forcées d'équations d'Euler-Lagrange
OSCILLATOR WITH STRONG QUADRATIC DAMPING FORCE