Universidade dos Ac¸ores, Departamento de Matem´atica, R. M˜ae de Deus, 9500-321, Ponta Delgada, Portugal.
AMS Subject Classifications: 34K11.
In this work we study the oscillatory behavior of the delay differential equation of mixed type
Some criteria are obtained in order to guarantee that all solutions are oscillatory.
The existence of nonoscillatory solutions is also considered.
ODE, oscillation, nonoscillation, advanced, delayed
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