Results 21 to 30 of about 2,202 (135)

Zero-Hopf Bifurcations of 3D Quadratic Jerk System

open access: yesMathematics, 2020
This paper is devoted to local bifurcations of three-dimensional (3D) quadratic jerk system. First, we start by analysing the saddle-node bifurcation. Then we introduce the concept of canonical system.
Bo Sang, Bo Huang
doaj   +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

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

Hopf bifurcation on one of tumor models

open access: yesLietuvos Matematikos Rinkinys, 2005
The article deals with qualitative analysis of model of pulsing tumor. The model is described by the system of second order differential equations.
Algis Kavaliauskas
doaj   +3 more sources

Hopf Bifurcation Analysis for a Four-Dimensional Recurrent Neural Network with Two Delays

open access: yesJournal of Applied Mathematics, 2013
A four-dimensional recurrent neural network with two delays is considered. The main result is given in terms of local stability and Hopf bifurcation. Sufficient conditions for local stability of the zero equilibrium and existence of the Hopf bifurcation ...
Zizhen Zhang, Huizhong Yang
doaj   +1 more source

Stability and Hopf bifurcation of a modified predator-prey model with a time delay and square root response function

open access: yesAdvances in Difference Equations, 2017
In this paper, we consider a two-dimensional predator-prey model with a time delay and square root response function. We analyze the stability of equilibria with the delay τ increasing and the critical value of τ when Hopf bifurcation occurs. Because the
Xinyu Zhu   +3 more
doaj   +1 more source

Delayed Feedback Control and Bifurcation Analysis of an Autonomy System

open access: yesAbstract and Applied Analysis, 2013
An autonomy system with time-delayed feedback is studied by using the theory of functional differential equation and Hassard’s method; the conditions on which zero equilibrium exists and Hopf bifurcation occurs are given, the qualities of the Hopf ...
Zhen Wang, Huitao Zhao, Xiangyu Kong
doaj   +1 more source

Traveling waves in a parabolic problem with a rotation on the circle [PDF]

open access: yesКомпьютерные исследования и моделирование, 2017
Optical systems with two-dimensional feedback demonstrate wide possibilities for studying the nucleation and development processes of dissipative structures.
Yuliya Aleksandrovna Khazova
doaj   +1 more source

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