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Existence of phase-locking in the Kuramoto system under mean-field feedback
Franci, Alessio; Pasillas-Lépine, W; Chaillet, A
2011In IFAC Proceedings Volumes (IFAC-PapersOnline)
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Keywords :
Deep brain stimulation; Kuramoto oscillators; Mean-field feedback; Phase-locking; Feedback; Locks (fasteners); Neurosurgery; Coupled nonlinear oscillators; Implicit function theorem; Mean field; Neurological disease; Standard assumptions; Microwave oscillators
Abstract :
[en] Motivated by the development of Deep Brain Stimulation (DBS) for neurological diseases, we study a network of interconnected oscillators under the influence of a proportional mean-field feedback. Under standard assumptions, this system can be reduced to a modified version of the Kuramoto model of coupled nonlinear oscillators. In the first part of the paper we show that, in general, no oscillating phase-locked solution can co-exist with any non-zero feedback gain. In the second part we propose a new characterization of phase-locking between Kuramoto oscillators. In particular we derive a fixed point equation for the Kuramoto system under mean-field feedback and we show how, generically, the "standard" (with zero feedback gain) Kuramoto fixed point equation is locally invertible in terms of the implicit function theorem. © 2011 IFAC.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Franci, Alessio  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Brain-Inspired Computing ; Univ. Paris Sud 11, L2S, Supélec, Gif sur Yvette, 91192, France
Pasillas-Lépine, W;  CNRS, L2S, France
Chaillet, A;  EECI, L2S, France
Language :
English
Title :
Existence of phase-locking in the Kuramoto system under mean-field feedback
Publication date :
2011
Event name :
IFAC World Congress 2011
Event date :
2011
Main work title :
IFAC Proceedings Volumes (IFAC-PapersOnline)
Publisher :
IFAC Secretariat
Peer reviewed :
Peer reviewed
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