Marcelo Kuperman, Damian Zanette
Published 2001-11-15Version 1
We analyze the phenomenon of stochastic resonance in an Ising-like system on a small-world network. The system, which is subject to the combined action of noise and an external modulation, can be interpreted as a stylized model of opinion formation by imitation under the effects of a ``fashion wave''. Both the amplitude threshold for the detection of the external modulation and the width of the stochastic-resonance peak show considerable variation as the randomness of the underlying small-world network is changed.
Comments: 5 pages, 5 figures included
Opinion formation in networked societies with strong leaders
Effect of leader's strategy on opinion formation in networked societies
Responses of Ensemble Neurons to Spike-Train Signals with Independent Noises: Stochastic Resonance and Spike Variability
