[en] In this paper, we study the behavior of pulse-coupled integrate-and-fire oscillators. Each oscillator is characterized by a state evolving between two threshold values. As the state reaches the upper threshold, it is reset to the lower threshold and emits a pulse which increments by a constant value the state of every other oscillator. The behavior of the system is described by the so-called firing map: depending on the stability of the firing map, an important dichotomy characterizes the behavior of the oscillators (synchronization or clustering). The firing map is
the composition of a linear map with a scalar nonlinearity. After briefly discussing the case of the scalar firing map (corresponding to two oscillators), the stability analysis is extended to the general n-dimensional firing map (for n +1 oscillators). Different models are considered (leaky oscillators, quadratic oscillators,...), with a particular emphasis on the persistence of the dichotomy in higher dimensions.
Disciplines :
Mathematics Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Mauroy, Alexandre ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Hendrickx, Julien; Massachusetts Institute of Technology - MIT > Electrical Engineering and Computer Science > Laboratory for Information and Decision Systems
Megretski, Alexandre; Massachusetts Institute of Technology - MIT > Electrical Engineering and Computer Science > Laboratory for Information and Decision Systems
Sepulchre, Rodolphe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Global Analysis of Firing Maps
Publication date :
July 2010
Event name :
19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010)
Event place :
Budapest, Hungary
Event date :
5-9 july 2010
Audience :
International
Main work title :
Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems
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