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Oscillation of neutral differential equations with ”maxima”. (English) Zbl 0836.34076
Summary: In the paper ordinary neutral differential equations with “maxima” \[ \bigl[ x(t) + p(t) x(t - \tau) \bigr]' + q(t) \max_{[t - \sigma, t]} x(s) = 0 \] are considered. Sufficient conditions for oscillation of all solutions are obtained.

MSC:
34K11 Oscillation theory of functional-differential equations
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34K40 Neutral functional-differential equations
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