Results 121 to 130 of about 7,371 (144)

Dynamics of a Filippov epidemic model with limited hospital beds

open access: yesMathematical Biosciences and Engineering, 2018
A Filippov epidemic model is proposed to explore the impact of capacity and limited resources of public health system on the control of epidemic diseases.
Aili Wang, Yanni Xiao, Huaiping Zhu
doaj   +1 more source

Homoclinic Points Calculation Method With Particle Swarm Optimization

open access: yesIEEE Access
This paper proposes a novel algorithm to accurately calculate the coordinates of homoclinic points observed in discrete-time dynamical systems. The proposed method is based on the particle swarm optimization method. Compared with the current methods, the
Tatsumi Makino   +3 more
doaj   +1 more source

Parametrically Excited Nonlinear Two-Degree-of-Freedom Systems with Repeated Natural Frequencies

open access: yesShock and Vibration, 1995
The method of normal forms is used to study the nonlinear response of two-degree-of-freedom systems with repeated natural frequencies and cubic nonlinearity to a principal parametric excitation.
A. H. Nayfeh, C. Chin, D. T. Mook
doaj   +1 more source

Bifurcation of multi-bump homoclinics in systems with normal and slow variables

open access: yesElectronic Journal of Differential Equations, 2000
Bifurcation of multi-bump homoclinics is studied for a pair of ordinary differential equations with periodic perturbations when the first unperturbed equation has a manifold of homoclinic solutions and the second unperturbed equation is vanishing.
Michal Feckan
doaj  

Resonant Homoclinic Flip Bifurcations [PDF]

open access: possibleJournal of Dynamics and Differential Equations, 2000
Homoclinic bifurcations gained a lot of attention because they are closely related to transitions to chaotic dynamics. Many kinds of homoclinic bifurcations were studied (the best known is the Shil'nikov case of a homoclinic orbit to a saddle-focus equilibrium).
Homburg, A.J., Krauskopf, B.
openaire   +2 more sources

Homoclinic bifurcations and the Floquet torus

Ergodic Theory and Dynamical Systems, 2000
In this paper we show that a $C^r$ diffeomorphism having an invariant Floquet torus which is non-normally hyperbolic can be approximated, in the $C^{r-3}$ topology, by another one which exhibits a homoclinic tangency.
Leonardo Mora, J. C. Martín
openaire   +3 more sources

Transverse bifurcations of homoclinic cycles

Physica D: Nonlinear Phenomena, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pascal Chossat   +3 more
openaire   +3 more sources

Homoclinic bifurcations in heterogeneous market models

Chaos, Solitons & Fractals, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
FORONI, ILARIA, Gardini, L.
openaire   +5 more sources

Bifurcation of degenerate homoclinics

Results in Mathematics, 1992
The continuation and bifurcation of homoclinic orbits near a given degenerate homoclinic orbit is analyzed. It is shown that the existence of such degenerate homoclinic orbits is a codimension three phenomenon and that generically the set of parameter values at which a homoclinic solution exists forms a codimension one surface which shows a singularity
openaire   +2 more sources

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