Optimization of synchronization in gradient clustered networks

Details Optimization of synchronization in gradient clustered networks Optimization of synchronization in gradient clustered networks

2006-12-26

arxiv.org/abs/nlin/0612057v2

Nonlinear Sciences

Chaotic Dynamics

PRE, 76, 056113 (2007)

Scientific paper

We consider complex clustered networks with a gradient structure, where sizes of the clusters are distributed unevenly. Such networks describe more closely actual networks in biophysical systems and in technological applications than previous models. Theoretical analysis predicts that the network synchronizability can be optimized by the strength of the gradient field but only when the gradient field points from large to small clusters. A remarkable finding is that, if the gradient field is sufficiently strong, synchronizability of the network is mainly determined by the properties of the subnetworks in the two largest clusters. These results are verified by numerical eigenvalue analysis and by direct simulation of synchronization dynamics on coupled-oscillator networks.

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