Abstract
By refining the standard integral averaging technique, we obtain new oscillation criteria for a class of second order nonlinear neutral differential equations of the form(r(t)(x(t)+p(t)x([email protected]))^')^'+q(t)f(x(t),x(@s(t)))=0. Assumptions in our theorems are less restrictive, whereas the proofs are significantly simpler compared to those in the recent paper by Shi and Wang [18] and related contributions to the subject. Examples are provided to illustrate the relevance of new theorems.
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