Note on oscillation of neutral differential equations with multiple delays
Autoři | |
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Rok publikování | 2024 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | Electronic Journal of Qualitative Theory of Differential Equations |
Fakulta / Pracoviště MU | |
Citace | |
www | https://doi.org/10.14232/ejqtde.2024.1.39 |
Doi | http://dx.doi.org/10.14232/ejqtde.2024.1.39 |
Klíčová slova | oscillatory solution; discrete delay; distributed delay; mixed delay |
Popis | This note is a reaction on a recently published sufficient condition for oscillation of all solutions of a neutral delay differential equation. It is shown by a counterexample that the result is not correct and the problem is explained in details. Several, more general, classes of neutral differential equations with time-dependent discrete, distributed as well as mixed delays are considered. New sufficient conditions for oscillation of all their solutions are proved. Applications are given for illustration. |
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