Oscillation Criteria for a Class of Second Order Nonlinear Differential Equations With Damping

Abstract

In this paper, some oscillation criteria for solutions of a general second order non-linear differential equations with damping of the form (a(t)Psi (x (t)) k (x'(t)))' + p (t) k (x'(t)) + q (t) f (x (t)) = 0, are given. The results obtained extend some existing results in the literature by using the refined integral averaging technique introduced by Rogovchenko and Tuncay ([1], [2]).