Results 101 to 110 of about 7,371 (144)

Shil'nikov Chaos control using Homoclinic orbits and the Newhouse region

open access: yes, 2006
A method of controlling Shil'nikov's type chaos using windows that appear in the 1 dimensional bifurcation diagram when perturbations are applied, and using existence of stable homoclinic orbits near the unstable one is presented and applied to the ...
Furui, Sadataka, Niiya, Shohei
core   +1 more source

Chaos and Control in Coronary Artery System

open access: yesDiscrete Dynamics in Nature and Society, 2012
Two types of coronary artery system N-type and S-type, are investigated. The threshold conditions for the occurrence of Smale horseshoe chaos are obtained by using Melnikov method.
Yanxiang Shi
doaj   +1 more source

A bifurcation analysis for the Lugiato-Lefever equation

open access: yes, 2016
The Lugiato-Lefever equation is a cubic nonlinear Schr\"odinger equation, including damping, detuning and driving, which arises as a model in nonlinear optics.
Godey, Cyril
core   +1 more source

Bifurcations of Nontwisted Heteroclinic Loop with Resonant Eigenvalues

open access: yesThe Scientific World Journal, 2014
By using the foundational solutions of the linear variational equation of the unperturbed system along the heteroclinic orbits to establish the local coordinate systems in the small tubular neighborhoods of the heteroclinic orbits, we study the ...
Yinlai Jin   +5 more
doaj   +1 more source

Global homoclinic bifurcation for damped systems

open access: yesMathematische Zeitschrift, 1995
Recently, existence and other results have been obtained for the variational problem \((P^0)\) \(\ddot u= -V'(u, t)\), \(u(- \infty)= u(\infty)= 0\), \(\dot u(- \infty)= \dot u(\infty)= 0\), where \(u\in \mathbb{R}^p\), the potential \(V\) behaves roughly like \(V= -{1\over 2} |U|^2+ W(u, t)\) with \(W\) superquadratic and 1-periodic in \(t\).
openaire   +3 more sources

Twisted and Nontwisted Bifurcations Induced by Diffusion

open access: yes, 1996
We discuss a diffusively perturbed predator-prey system. Freedman and Wolkowicz showed that the corresponding ODE can have a periodic solution that bifurcates from a homoclinic loop.
A. Lunardi   +25 more
core   +2 more sources

Essential hyperbolicity and homoclinic bifurcations: a dichotomy phenomenon/mechanism for diffeomorphisms

open access: yes, 2010
We prove that any diffeomorphism of a compact manifold can be approximated in topology C1 by another diffeomorphism exhibiting a homoclinic bifurcation (a homoclinic tangency or a heterodimensional cycle) or by one which is essentially hyperbolic (it has
Crovisier, Sylvain, Pujals, Enrique R.
core   +1 more source

Scaling in activated escape of underdamped systems

open access: yes, 2005
Noise-induced escape from a metastable state of a dynamical system is studied close to a saddle-node bifurcation point, but in the region where the system remains underdamped.
A. P. Dmitriev   +10 more
core   +1 more source

Blue Sky Catastrophe in Systems with Non-classical Relaxation Oscillations

open access: yesМоделирование и анализ информационных систем, 2015
The feasibility of a known blue-sky bifurcation in a class of three-dimensional singularly perturbed systems of ordinary differential equations with one fast and two slow variables is studied.
S. D. Glyzin   +2 more
doaj   +1 more source

Some bifurcation methods of finding limit cycles

open access: yesMathematical Biosciences and Engineering, 2005
In this paper we outline some methods of finding limit cycles for planar autonomous systems with small parameter perturbations. Three ways of studying Hopf bifurcations and the method of Melnikov functions in studying Poincaré bifurcations are introduced
Maoan Han, Tonghua Zhang
doaj   +1 more source

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