Results 41 to 50 of about 3,779 (211)

New approach to study the van der Pol equation for large damping

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We present a new approach to establish the existence of a unique limit cycle for the van der Pol equation in case of large damping. It is connected with the bifurcation of a stable hyperbolic limit cycle from a closed curve composed of two heteroclinic ...
Klaus Schneider
doaj   +1 more source

Stability of quasi-simple heteroclinic cycles [PDF]

open access: yesDynamical Systems, 2018
The stability of heteroclinic cycles may be obtained from the value of the local stability index along each connection of the cycle. We establish a way of calculating the local stability index for quasi-simple cycles: cycles whose connections are 1-dimensional and contained in flow-invariant spaces of equal dimension.
Sofia B. S. D. Castro   +1 more
openaire   +3 more sources

Slow Switching in Globally Coupled Oscillators: Robustness and Occurrence through Delayed Coupling [PDF]

open access: yes, 2001
The phenomenon of slow switching in populations of globally coupled oscillators is discussed. This characteristic collective dynamics, which was first discovered in a particular class of the phase oscillator model, is a result of the formation of a ...
A.T. Winfree   +18 more
core   +3 more sources

Singular Orbits and Dynamics at Infinity of a Conjugate Lorenz-Like System

open access: yesMathematical Modelling and Analysis, 2015
A conjugate Lorenz-like system which includes only two quadratic nonlinearities is proposed in this paper. Some basic properties of this system, such as the distribution of its equilibria and their stabilities, the Lyapunov exponents, the bifurcations ...
Fengjie Geng, Xianyi Li
doaj   +1 more source

Spiralling dynamics near heteroclinic networks [PDF]

open access: yes, 2013
There are few explicit examples in the literature of vector fields exhibiting complex dynamics that may be proved analytically. We construct explicitly a {two parameter family of vector fields} on the three-dimensional sphere $\EU^3$, whose flow has a ...
Address Of Alex   +7 more
core   +1 more source

Heteroclinic Dynamics of Localized Frequency Synchrony: Stability of Heteroclinic Cycles and Networks [PDF]

open access: yesJournal of Nonlinear Science, 2019
In the first part of this paper, we showed that three coupled populations of identical phase oscillators give rise to heteroclinic cycles between invariant sets where populations show distinct frequencies. Here, we now give explicit stability results for these heteroclinic cycles for populations consisting of two oscillators each.
Christian Bick, Alexander Lohse
openaire   +4 more sources

Shapley Polygons in 4 x 4 Games

open access: yesGames, 2010
We study 4 x 4 games for which the best response dynamics contain a cycle. We give examples in which multiple Shapley polygons occur for these kinds of games.
Martin Hahn
doaj   +1 more source

The Hunt Opinion Model-An Agent Based Approach to Recurring Fashion Cycles. [PDF]

open access: yesPLoS ONE, 2016
We study a simple agent-based model of the recurring fashion cycles in the society that consists of two interacting communities: "snobs" and "followers" (or "opinion hunters", hence the name of the model).
RafaƂ Apriasz   +3 more
doaj   +1 more source

On Takens' Last Problem: tangencies and time averages near heteroclinic networks [PDF]

open access: yes, 2017
We obtain a structurally stable family of smooth ordinary differential equations exhibiting heteroclinic tangencies for a dense subset of parameters. We use this to find vector fields $C^2$-close to an element of the family exhibiting a tangency, for ...
Labouriau, Isabel S.   +1 more
core   +2 more sources

Criteria for robustness of heteroclinic cycles in neural microcircuits [PDF]

open access: yesThe Journal of Mathematical Neuroscience, 2011
We introduce a test for robustness of heteroclinic cycles that appear in neural microcircuits modeled as coupled dynamical cells. Robust heteroclinic cycles (RHCs) can appear as robust attractors in Lotka-Volterra-type winnerless competition (WLC) models as well as in more general coupled and/or symmetric systems.
Ashwin, Peter   +2 more
openaire   +5 more sources

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