Article (Scientific journals)
Global analysis of a continuum model for monotone pulse-coupled oscillators
Mauroy, Alexandre; Sepulchre, Rodolphe
2013In IEEE Transactions on Automatic Control, 58 (5), p. 1154-1166
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Keywords :
Global stability; Impulsive coupling; Lyapunov function; Partial differential equations; Phase oscillators; Synchronization; Total variation distance; Transport equation; Instantaneous couplings; Leaky integrate-and-fire model; Nonlinear transport equations; Pulse-coupled oscillators; Total variation; Continuum mechanics; Nonlinear equations; Oscillators (mechanical); Phase modulation; Lyapunov functions
Abstract :
[en] We consider a continuum of phase oscillators on the circle interacting through an impulsive instantaneous coupling. In contrast with previous studies on related pulse-coupledmodels, the stability results obtained in the continuum limit are global. For the nonlinear transport equation governing the evolution of the oscillators, we propose (under technical assumptions) a global Lyapunov function which is induced by a total variation distance between quantile densities. The monotone time evolution of the Lyapunov function completely characterizes the dichotomic behavior of the oscillators: either the oscillators converge in finite time to a synchronous state or they asymptotically converge to an asynchronous state uniformly spread on the circle. The results of the present paper apply to popular phase oscillators models (e.g., the well-known leaky integrate-and-fire model) and show a strong parallel between the analysis of finite and infinite populations. In addition, they provide a novel approach for the (global) analysis of pulse-coupled oscillators. © 2012 IEEE.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Mathematics
Author, co-author :
Mauroy, Alexandre ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Sepulchre, Rodolphe ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Global analysis of a continuum model for monotone pulse-coupled oscillators
Publication date :
2013
Journal title :
IEEE Transactions on Automatic Control
ISSN :
0018-9286
Publisher :
Institute of Electrical and Electronics Engineers, United States - New Jersey
Volume :
58
Issue :
5
Pages :
1154-1166
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 03 April 2014

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