Results 21 to 30 of about 210 (64)

An iterated graph construction and periodic orbits of Hamiltonian delay equations [PDF]

open access: yes, 2018
According to the Arnold conjectures and Floer's proofs, there are non-trivial lower bounds for the number of periodic solutions of Hamiltonian differential equations on a closed symplectic manifold whose symplectic form vanishes on spheres.
Albers, Peter   +2 more
core   +2 more sources

Existence of positive periodic solutions for fourth-order nonlinear neutral differential equations with variable delay

open access: yesAdvances in Nonlinear Analysis, 2014
In this article we study the existence of positive periodic solutions for a fourth-order nonlinear neutral differential equation with variable delay.
Ardjouni Abdelouaheb   +2 more
doaj   +1 more source

Positive periodic solutions of nonautonomous functional differential equations depending on a parameter

open access: yes, 2002
Abstract and Applied Analysis, Volume 7, Issue 5, Page 279-286, 2002.
Guang Zhang, Sui Sun Cheng
wiley   +1 more source

Global exponential stability of nonautonomous neural network models with continuous distributed delays [PDF]

open access: yes, 2013
For a family of non-autonomous differential equations with distributed delays, we give sufficient conditions for the global exponential stability of an equilibrium point. This family includes most of the delayed models of neural networks of Hopfield type,
Baldi   +23 more
core   +2 more sources

Delay-induced patterns in a two-dimensional lattice of coupled oscillators [PDF]

open access: yes, 2014
We show how a variety of stable spatio-temporal periodic patterns can be created in 2D-lattices of coupled oscillators with non-homogeneous coupling delays.
Kantner, Markus   +2 more
core   +5 more sources

Anti-periodic solutions for a class of third-order nonlinear differential equations with a deviating argument [PDF]

open access: yes, 2010
In this paper, we study a class of third-order nonlinear differential equations with a deviating argument and establish some sufficient conditions for the existence and exponential stability of anti-periodic solutions of the equation.
Fan, Qiyi   +3 more
core   +1 more source

Existence and uniqueness of limit cycles for generalized -Laplacian Liénard equations [PDF]

open access: yes, 2016
Agraïments: The first author is also supported by a PNPD/CAPES grant. The third author is supported by FQM-1861 (Junta de Andalucía) grants.The Liénard equation x'' + f(x)x' + g(x) = 0 appears as a model in many problems of science and engineering. Since
Pérez-González, Set   +2 more
core   +3 more sources

Infinitely many periodic solutions for a class of fractional Kirchhoff problems

open access: yes, 2019
We prove the existence of infinitely many nontrivial weak periodic solutions for a class of fractional Kirchhoff problems driven by a relativistic Schr\"odinger operator with periodic boundary conditions and involving different types of ...
Ambrosio, Vincenzo
core   +1 more source

The dynamical analysis of a nonlocal predator–prey model with cannibalism

open access: yesEuropean Journal of Applied Mathematics
Cannibalism is often an extreme interaction in the animal species to quell competition for limited resources. To model this critical factor, we improve the predator–prey model with nonlocal competition effect by incorporating the cannibalism term, and ...
Daifeng Duan   +3 more
doaj   +1 more source

Existence and globally exponential stability of equilibrium for fuzzy BAM neural networks with distributed delays and impulse

open access: yesAdvances in Difference Equations, 2011
In this article, fuzzy bi-directional associative memory neural networks with distributed delays and impulses are considered. Some sufficient conditions for the existence and globally exponential stability of unique equilibrium point are established ...
Liao Daixi, Yang Lihui, Zhang Qianhong
doaj  

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