Results 21 to 30 of about 10,744 (292)

On the Zero-Hopf Bifurcation of the Lotka–Volterra Systems in R 3

open access: yesMathematics, 2020
Here we study 3-dimensional Lotka–Volterra systems. It is known that some of these differential systems can have at least four periodic orbits bifurcating from one of their equilibrium points.
Maoan Han, Jaume Llibre, Yun Tian
doaj   +1 more source

Bifurcation of big periodic orbits through symmetric homoclinics‎, ‎application to Duffing equation [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
‎We consider a planar symmetric vector field that undergoes a homoclinic bifurcation‎. ‎In order to study the existence of exterior periodic solutions of the vector field around broken symmetric homoclinic orbits‎, ‎we investigate the existence of fixed ...
Liela Soleimani, Omid RabieiMotlagh
doaj   +1 more source

On periodic orbits in discrete-time cascade systems

open access: yesDiscrete Dynamics in Nature and Society, 2006
We present some results on existence, minimum period, number of periodic orbits, and stability of periodic orbits in discrete-time cascade systems. Some examples are presented to illustrate these results.
Huimin Li, Xiao-Song Yang
doaj   +1 more source

Mixed-coexistence of periodic orbits and chaotic attractors in an inertial neural system with a nonmonotonic activation function

open access: yesMathematical Biosciences and Engineering, 2019
In this paper, we construct an inertial two-neuron system with a non-monotonic activation function. Theoretical analysis and numerical simulation are employed to illustrate the complex dynamics.
Zigen Song, Jian Xu, Bin Zhen
doaj   +1 more source

Orbital Magnetization in Periodic Insulators [PDF]

open access: yesPhysical Review Letters, 2005
submitted to PRL; signs corrected in Eqs. (11), (12), (19), and (20)
T. THONHAUSER   +3 more
openaire   +4 more sources

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

Unstable periodic orbits and attractor of the barotropic ocean model [PDF]

open access: yesNonlinear Processes in Geophysics, 1998
A numerical method for detection of unstable periodic orbits on attractors of nonlinear models is proposed.  The method requires similar techniques to data assimilation.  This fact facilitates its implementation for geophysical models.  ...
E. Kazantsev
doaj  

Global Analysis of a Planetary Gear Train

open access: yesShock and Vibration, 2014
By using the Poincaré-like cell-to-cell mapping method and shooting method, the global characteristics of a planetary gear train are studied based on the torsional vibration model with errors of transmission, time-varying meshing stiffness, and multiple ...
Tongjie Li, Rupeng Zhu
doaj   +1 more source

Periodic Orbit Theory of Diffraction [PDF]

open access: yesPhysical Review Letters, 1994
An extension of the Gutzwiller trace formula is given that includes diffraction effects due to hard wall scatterers or other singularities. The new trace formula involves periodic orbits which have arcs on the surface of singularity and which correspond to creping waves. A new family of resonances in the two disk scattering system can be well described
Vattay, G., Wirzba, A., Rosenqvist, P.
openaire   +4 more sources

Bifurcations of Orbit and Inclination Flips Heteroclinic Loop with Nonhyperbolic Equilibria

open access: yesThe Scientific World Journal, 2014
The bifurcations of heteroclinic loop with one nonhyperbolic equilibrium and one hyperbolic saddle are considered, where the nonhyperbolic equilibrium is supposed to undergo a transcritical bifurcation; moreover, the heteroclinic loop has an orbit flip ...
Fengjie Geng, Junfang Zhao
doaj   +1 more source

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