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Sufficient conditions for oscillations in higher order linear functional differential equations of neutral type. (English) Zbl 0714.34104
The authors study the asymptotic and oscillatory properties for higher order neutral functional differential equations, and give oscillation criteria by using functional differential inequalities of retarded, advanced and mixed type.
Reviewer: Zhujun Jing

MSC:
34K99 Functional-differential equations (including equations with delayed, advanced or state-dependent argument)
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34A30 Linear ordinary differential equations and systems
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