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Oscillatory behaviour of a higher order nonlinear neutral delay type functional differential equation with oscillating coefficients. (English) Zbl 1081.34066
Summary: We are concerned with the oscillation of solutions of a certain more general higher-order nonlinear neutral-type functional-differential equation with oscillating coefficients. We obtain two sufficient criteria for oscillatory behaviour of its solutions.

34K11 Oscillation theory of functional-differential equations
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