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On linearized oscillations for neutral delay differential equations. (Chinese. English summary) Zbl 0794.34057

Summary: We prove in the paper, under suitable hypotheses, that all solutions of a certain class of nonlinear neutral delay differential equations oscillate if and only if all solutions of an associated linear equation with periodic coefficients oscillate.

MSC:

34K99 Functional-differential equations (including equations with delayed, advanced or state-dependent argument)
34K40 Neutral functional-differential equations
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations