Results 21 to 30 of about 1,883 (165)

On Uniqueness of Limit Cycles in General Bogdanov–Takens Bifurcation [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2018
In this paper, we present a complete study of the well-known Bogdanov–Takens bifurcation and give a rigorous proof for the uniqueness of limit cycles.
Han, Maoan, Llibre, Jaume, Yang, Junmin
openaire   +7 more sources

Bogdanov–Takens Bifurcation of Codimension 3 in the Gierer–Meinhardt Model

open access: yesInternational Journal of Bifurcation and Chaos, 2023
Bifurcation of the local Gierer–Meinhardt model is analyzed in this paper. It is found that the degenerate Bogdanov–Takens bifurcation of codimension 3 exists in the model, except for the saddle-node bifurcation and the Hopf bifurcation. That was not reported in the literature about this model.
Ranchao Wu, Lingling Yang
openaire   +2 more sources

Bogdanov-Takens bifurcation in predator-prey systems

open access: yesDiscrete & Continuous Dynamical Systems - S, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zeng, Bing, Deng, Shengfu, Yu, Pei
openaire   +2 more sources

Chaos in the Takens-Bogdanov bifurcation with O(2) symmetry [PDF]

open access: yes, 2016
The Takens–Bogdanov bifurcation is a codimension two bifurcation that provides a key to the presence of complex dynamics in many systems of physical interest. When the system is translation invariant in one spatial dimension with no left-right preference
A. M. Rucklidge   +8 more
core   +2 more sources

Slow–fast Bogdanov–Takens bifurcations

open access: yesJournal of Differential Equations, 2011
The paper deals with smooth families of slow-fast systems that represent a very general class of singular perturbation problems near a turning point. The authors introduce the notion of slow-fast Bogdanov-Takens bifurcation and provide a complete study of the perturbations from planar vector fields having a line of zeros, representing the singular ...
De Maesschalck, P., Dumortier, F.
openaire   +2 more sources

Takens-Bogdanov bifurcation of travelling wave solutions in pipe flow [PDF]

open access: yes, 2010
The appearance of travelling-wave-type solutions in pipe Poiseuille flow that are disconnected from the basic parabolic profile is numerically studied in detail.
B. ECKHARDT   +6 more
core   +5 more sources

Global bifurcations in the Takens-Bogdanov normal form with D_4 symmetry near the O(2) limit [PDF]

open access: yes, 2001
The dynamics of the normal form of the Takens-Bogdanov bifurcation with D_4 symmetry is governed by a one-dimensional map near the gluing bifurcation and near the O(2) integrable limit, rather than the three-dimensional map one would expect.
Rucklidge, A.M.
core   +1 more source

Complex Behaviors of Epidemic Model with Nonlinear Rewiring Rate

open access: yesComplexity, 2020
An SIS propagation model with the nonlinear rewiring rate on an adaptive network is considered. It is found by bifurcation analysis that the model has the complex behaviors which include the transcritical bifurcation, saddle-node bifurcation, Hopf ...
Ding Fang, Yongxin Zhang, Wendi Wang
doaj   +1 more source

Dynamic analysis of a Leslie-Gower predator-prey model with the fear effect and nonlinear harvesting

open access: yesMathematical Biosciences and Engineering, 2023
In this paper, we investigate the stability and bifurcation of a Leslie-Gower predator-prey model with a fear effect and nonlinear harvesting. We discuss the existence and stability of equilibria, and show that the unique equilibrium is a cusp of ...
Hongqiuxue Wu, Zhong Li, Mengxin He
doaj   +1 more source

Some results on homoclinic and heteroclinic connections in planar systems [PDF]

open access: yes, 2009
Consider a family of planar systems depending on two parameters $(n,b)$ and having at most one limit cycle. Assume that the limit cycle disappears at some homoclinic (or heteroclinic) connection when $\Phi(n,b)=0.$ We present a method that allows to ...
Andronov A A   +12 more
core   +4 more sources

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