On Oscillation Criteria for Third Order Nonlinear Delay Differential Equations
نویسندگان
چکیده
In this paper we are concerned with the oscillation of third order nonlinear delay differential equations of the form ( r2 (t) ( r1 (t)x′ )′)′ + p (t)x′ + q (t) f (x (g (t))) = 0. We establish some new sufficient conditions which insure that every solution of this equation either oscillates or converges to zero.
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تاریخ انتشار 2009