Existence of positive periodic solutions to third-order delay differential equations.

Gui, Zhanji

Displaying similar documents to “Existence of positive periodic solutions to third-order delay differential equations.”

Periodicity and stability in neutral nonlinear differential equations with functional delay.

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Positive periodic solutions of neutral functional differential equations with a parameter and impulse.

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Existence of positive periodic solutions for neutral functional differential equations.

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Almost periodic solutions of neutral impulsive systems with periodic time-dependent perturbed delays

Valéry Covachev, Zlatinka Covacheva, Haydar Akça, Eada Al-Zahrani (2003)

Open Mathematics

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A neutral impulsive system with a small delay of the argument of the derivative and another delay which differs from a constant by a periodic perturbation of a small amplitude is considered. If the corresponding system with constant delay has an isolated ω-periodic solution and the period of the delay is not rationally dependent on ω, then under a nondegeneracy assumption it is proved that in any sufficiently small neighbourhood of this orbit the perturbed system has a unique almost...