On the Oscillation Certain Fourth Order Nonlinear Dynamic Equations with a Nonlinear Middle Term
نویسندگان
چکیده
New oscillation criteria for certain fourth order nonlinear dynamic equations with nonlinear middle term are established. Mathematics subject classification (2010): 34K11, 39A10, 39A99, 34C10, 34C15, 34N05.
منابع مشابه
Dynamic Systems and Applications 25 (2016) 431-438 OSCILLATION CRITERIA FOR FOURTH ORDER NONLINEAR POSITIVE DELAY DIFFERENTIAL EQUATIONS WITH A MIDDLE TERM SAID GRACE AND ELVAN AKIN
In this article, we establish some new criteria for the oscillation of fourth order nonlinear delay differential equations of the form x(t) + p(t)x(t) + q(t)f(x(g(t))) = 0 provided that the second order equation z(t) + p(t)z(t) = 0 is nonoscillatiory or oscillatory. This equation with g(t) = t is considered in [8] and some oscillation criteria for this equation via certain energy functions are ...
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