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Noise in Coevolving Networks

Diakonova, Marina; Eguiluz, Victor M.; San Miguel, Maxi
Physical Review E 92, 032803 (2015)

Coupling dynamics of the states of the nodes of a network to the dynamics of the network topology leads to generic absorbing and fragmentation transitions. The coevolving voter model is a typical system that exhibits such transitions at some critical rewiring. We study the robustness of these transitions under two distinct ways of introducing noise. Noise affecting all the nodes destroys the absorbing-fragmentation transition, giving rise in finite-size systems to two regimes: bimodal magnetisation and dynamic fragmentation. Noise Targeting a fraction of nodes preserves the transitions but introduces shattered fragmentation with its characteristic fraction of isolated nodes and one or two giant components. Both the lack of absorbing state for homogenous noise and the shift in the absorbing transition to higher rewiring for targeted noise are supported by analytical approximations.

DOI 10.1103/PhysRevE.92.032803 
ArXiv Number 1411.5181 
Files FullyMixing.mp4 (3451587 Bytes)
BimodalMagnetisation.mp4 (3449183 Bytes)
DynamicFragmentation.mp4 (3393934 Bytes)
NoiseinCoevolvingNetworks.pdf (3970293 Bytes)
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