Effective centrality and explosive synchronization in complex networks
Abstract
Synchronization of networked oscillators is known to depend fundamentally on the interplay between the dynamics of the graph's units and the microscopic arrangement of the network's structure. We here propose an effective network whose topological properties reflect the interplay between the topology and dynamics of the original network. On that basis, we are able to introduce the effective centrality, a measure that quantifies the role and importance of each network's node in the synchronization process. In particular, in the context of explosive synchronization, we use such a measure to assess the propensity of a graph to sustain an irreversible transition to synchronization. We furthermore discuss a strategy to induce the explosive behavior in a generic network, by acting only upon a fraction of its nodes.
 Publication:

Physical Review E
 Pub Date:
 December 2015
 DOI:
 10.1103/PhysRevE.92.062820
 arXiv:
 arXiv:1503.00954
 Bibcode:
 2015PhRvE..92f2820N
 Keywords:

 89.75.Hc;
 05.45.Xt;
 87.18.Sn;
 Networks and genealogical trees;
 Synchronization;
 coupled oscillators;
 Neural networks;
 Nonlinear Sciences  Adaptation and SelfOrganizing Systems
 EPrint:
 doi:10.1103/PhysRevE.92.062820