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Oscillatory and asymptotic behavior of damped functional differential equations. (English) Zbl 0698.34060
For second order nonlinear differential equations with deviating arguments conditions are given for oscillatory behaviour and for the property that any solution is either oscillatory or tends monotonically to zero. Examples (10 of them) show that the assumptions cannot be removed without damage.
Reviewer: A.Halanay

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
34A34 Nonlinear ordinary differential equations and systems
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References:
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