Results 21 to 30 of about 18,412 (196)

Bifurcation analysis of glucose model with obesity effect

open access: yesAlexandria Engineering Journal, 2021
Due to the importance of studying the change in glucose which affected by obesity and results in a negative effect on the health of the body, In this paper, glucose metabolism model was developed to study the effect of obesity.
Mahmoud A. Abd-Rabo   +3 more
doaj   +1 more source

Zero-Hopf bifurcation in the Van der Pol oscillator with delayed position and velocity feedback [PDF]

open access: yes, 2014
In this paper, we consider the traditional Van der Pol Oscillator with a forcing dependent on a delay in feedback. The delay is taken to be a nonlinear function of both position and velocity which gives rise to many different types of bifurcations.
Bramburger, Jason   +2 more
core   +1 more source

Bifurcations of global reinjection orbits near a saddle-node Hopf bifurcation [PDF]

open access: yes, 2006
The saddle-node Hopf bifurcation (SNH) is a generic codimension-two bifurcation of equilibria of vector fields in dimension at least three. It has been identified as an organizing centre in numerous vector field models arising in applications.
Krauskopf, B, Oldeman, BE
core   +3 more sources

Oscillations and secondary bifurcations in nonlinear magnetoconvection [PDF]

open access: yes, 1993
Complicated bifurcation structures that appear in nonlinear systems governed by partial differential equations (PDEs) can be explained by studying appropriate low-order amplitude equations.
A. M. Rucklidge   +13 more
core   +1 more source

Hopf-zero bifurcation of Oregonator oscillator with delay

open access: yesAdvances in Difference Equations, 2018
In this paper, we study the Hopf-zero bifurcation of Oregonator oscillator with delay. The interaction coefficient and time delay are taken as two bifurcation parameters. Firstly, we get the normal form by performing a center manifold reduction and using
Yuting Cai, Liqin Liu, Chunrui Zhang
doaj   +1 more source

Oscillation and convergence behaviors exhibited in an ‘unstable’ second-order digital filter with saturation-type nonlinearity [PDF]

open access: yes, 2004
This letter explains the oscillatory behaviors exhibited in a second-order digital filter with saturation-type nonlinearity via the Hopf bifurcation theorem.
Ho, Charlotte Yuk-Fan   +3 more
core   +1 more source

Stability and Bifurcation Analysis in a Class of Two-Neuron Networks with Resonant Bilinear Terms

open access: yesAbstract and Applied Analysis, 2011
A class of two-neuron networks with resonant bilinear terms is considered. The stability of the zero equilibrium and existence of Hopf bifurcation is studied.
Changjin Xu, Xiaofei He
doaj   +1 more source

Hopf Bifurcation and Global Periodic Solutions in a Predator-Prey System with Michaelis-Menten Type Functional Response and Two Delays

open access: yesAbstract and Applied Analysis, 2014
We consider a predator-prey system with Michaelis-Menten type functional response and two delays. We focus on the case with two unequal and non-zero delays present in the model, study the local stability of the equilibria and the existence of Hopf ...
Yunxian Dai, Yiping Lin, Huitao Zhao
doaj   +1 more source

On the interaction of a system with multifrequency oscillations with a chaotic generator [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of the work: to study the influence of the dynamics of a chaotic system on a system with multi-frequency quasi-periodicity and the Landau-Hopf scenario.
Kuznetsov, Aleksandr Petrovich   +1 more
doaj   +1 more source

Spirals and ribbons in counter-rotating Taylor-Couette flow: frequencies from mean flows and heteroclinic orbits [PDF]

open access: yes, 2019
A number of time-periodic flows have been found to have a property called RZIF: when a linear stability analysis is carried out about the temporal mean (rather than the usual steady state), an eigenvalue is obtained whose Real part is Zero and whose ...
Bengana, Yacine, Tuckerman, Laurette S.
core   +2 more sources

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