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Awaking and sleeping of a complex network

  Articoli su Riviste JCR/ISI  (anno 2007)

Autori:  Lopez-Ruiz R., Moreno Y., Pacheco A.F., Boccaletti S., Hwang D

Affiliazione Autori:  Univ Zaragoza, Fac Sci, Dept Comp Sci, E-50009 Zaragoza, Spain; Univ Zaragoza, Fac Sci, BIFI, E-50009 Zaragoza, Spain; Univ Zaragoza, Fac Sci, Dept Theoret Phys, E-50009 Zaragoza, Spain; Ist Nazl Ott Applicata, I-50125 Florence, Italy

Riassunto:  A network with a logistic-like local dynamics is considered. We implement a mean-field multiplicative coupling among first-neighbor nodes. When the coupling parameter is small, the dynamics is dissipated and there is no activity: the network is turned off. For a critical value of the coupling, a non-null stable synchronized state, which represents a turned on network, emerges. This global bifurcation is independent of the network topology. We characterize the bistability of the system by studying how to perform the transition, which is now topology dependent, from the active state to that with no activity, for the particular case of a scale-free network. This could be a naive model for the wakening and sleeping of a brain-like system, i.e., a multi-component system with two different dynamical behaviors. (c) 2006 Elsevier Ltd. All rights reserved.

Rivista/Giornale:  NEURAL NETWORKS
Volume n.:  20 (1)      Pagine da: 102  a: 108
DOI: 10.1016/j.neunet.2006.04.002

*Impact Factor della Rivista: (2007) 1.951   *Citazioni: 7
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  26/05/2019

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