Who’s Talking First? Consensus or Lack Thereof in Coevolving Opinion Formation Models

Cecilia Nardini, Balázs Kozma, and Alain Barrat
Phys. Rev. Lett. 100, 158701 – Published 18 April 2008

Abstract

We investigate different opinion formation models on adaptive network topologies. Depending on the dynamical process, rewiring can either (i) lead to the elimination of interactions between agents in different states, and accelerate the convergence to a consensus state or break the network in noninteracting groups or (ii), counterintuitively, favor the existence of diverse interacting groups for exponentially long times. The mean-field analysis allows us to elucidate the mechanisms at play. Strikingly, allowing the interacting agents to bear more than one opinion at the same time drastically changes the model’s behavior and leads to fast consensus.

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  • Received 8 November 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.158701

©2008 American Physical Society

Authors & Affiliations

Cecilia Nardini1,2, Balázs Kozma1, and Alain Barrat1,3

  • 1LPT, CNRS, UMR 8627, and Univ Paris-Sud, Orsay, F-91405 (France)
  • 2Universitá di Padova, dipartimento di Fisica “G. Galilei” (Italy)
  • 3Complex Networks Lagrange Laboratory, ISI Foundation, Turin, Italy

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Issue

Vol. 100, Iss. 15 — 18 April 2008

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