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Asymptotic properties of solutions of the third order quasilinear neutral differential equations. (English) Zbl 1040.34099
Summary: We derive necessary and sufficient conditions for the existence of nonoscillatory solutions of the equation $(r_2(t) (r_1(t)\varphi(\{x(t)- p(t) x(h(t))\}'))')'+ f(t, x(g(t)))= 0$ with specified asymptotic behaviour as $$t\to\infty$$.
##### MSC:
 34K25 Asymptotic theory of functional-differential equations 34K40 Neutral functional-differential equations 34K11 Oscillation theory of functional-differential equations
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##### References:
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