Results 111 to 120 of about 9,394 (211)

Existence of homoclinic orbits for unbounded time-dependent $p$-Laplacian systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, we consider the following ordinary $p$-Laplacian system \begin{equation} \frac{d}{dt}\big(|\dot u(t)|^{p-2}\dot u(t)\big)-\nabla K(t,u(t)) + \nabla W(t,u(t))=f(t),\tag{$HS$} \end{equation} where $t\in \mathbb{R}$ and $ p>1$.
Adel Daouas
doaj   +1 more source

Random Wandering Around Homoclinic-like Manifolds in Symplectic Map Chain

open access: yes, 2001
We present a method to construct a symplecticity preserving renormalization group map of a chain of weakly nonlinear symplectic maps and obtain a general reduced symplectic map describing its long-time behaviour.
Goto, Shin-itiro   +2 more
core   +2 more sources

A Note on the Existence of a Smale Horseshoe in the Planar Circular Restricted Three-Body Problem

open access: yesAbstract and Applied Analysis, 2015
It has been proved that, in the classical planar circular restricted three-body problem, the degenerate saddle point processes transverse homoclinic orbits.
Xuhua Cheng, Zhikun She
doaj   +1 more source

The point charge oscillator: qualitative and analytical investigations

open access: yesMathematical Modelling and Analysis, 2019
We study the mathematical model of the point charge oscillator which has been derived by A. Beléndez et al. [2]. First we determine the global phase portrait of this model in the Poincaré disk.
Klaus R. Schneider
doaj   +1 more source

Partial Hyperbolicity and Homoclinic Tangencies [PDF]

open access: yes, 2011
We show that any diffeomorphism of a compact manifold can be C1 approximated by diffeomorphisms exhibiting a homoclinic tangency or by diffeomorphisms having a partial hyperbolic ...
Crovisier, Sylvain   +2 more
core   +1 more source

Perturbed Li–Yorke homoclinic chaos

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
It is rigorously proved that a Li–Yorke chaotic perturbation of a system with a homoclinic orbit creates chaos along each periodic trajectory. The structure of the chaos is investigated, and the existence of infinitely many almost periodic orbits out of ...
Marat Akhmet   +3 more
doaj   +1 more source

Homoclinic and Heteroclinic Neural ODEs: Theory and Its Use to Construct New Chaotic Attractors

open access: yesJournal of Optimization, Differential Equations and Their Applications
New types of neural ordinary differential equations (NODE) with power nonlinearities are considered. For these NODE systems, new conditions for the existence of homoclinic and heteroclinic orbits are found.
Vasiliy Ye. Belozyorov   +2 more
doaj   +1 more source

Homoclinic orbits at infinity for second-order Hamiltonian systems with fixed energy

open access: yesElectronic Journal of Differential Equations, 2015
We obtain the existence of homoclinic orbits at infinity for a class of second-order Hamiltonian systems with fixed energy. We use the limit for a sequence of approximate solutions which are obtained by variational methods.
Dong-Lun Wu, Shiqing Zhang
doaj  

Author’s reply to: Comments on “Asymptotically stable equilibrium points in new chaotic systems”

open access: yesNova Scientia, 2017
Since theorem 1 of (Elhadj and Sprott, 2012) is incorrect, some of the systems found in the article (Casas-García et al. 2016) may have homoclinic or heteroclinic orbits and may seem chaos in the Shilnikov sense.
K. Casas-García   +4 more
doaj   +1 more source

Infinitely many homoclinic orbits for Hamiltonian systems with group symmetries

open access: yesElectronic Journal of Differential Equations, 1999
This paper deals via variational methods with the existence of infinitely many homoclinic orbits for a class of the first-order time-dependent Hamiltonian systems $$ dot{z}=JH_z(t,z) $$ without any periodicity assumption on $H$, providing that $H(t,z ...
Cheng Lee
doaj  

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