Journal
APPLIED MATHEMATICS AND COMPUTATION
Volume 333, Issue -, Pages 194-212Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amc.2018.03.084
Keywords
Hindmarsh-Rose neurons; Coupled dynamical complex network; Synchronization; Modular network; Small-world network; Assortativity
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Emergence of synchronization is a remarkable collective phenomena between apparently independent agents in numerous multilevel and complex systems. The evidence of synchronization ranges from the elementary biological organisms to the most sophisticated human societies. In this paper, the problem of synchronization of nonlinearly coupled dynamical networks of Hindmarsh-Rose neurons with a sigmoidal coupling function is addressed. Sufficient condition for synchrony in terms of network structure is developed. A study on the basis of attraction of the complete synchronization is carried out for different structured networks. Also the phase synchronization of dynamical network of Hindmarsh-Rose neurons are studied. The impact of different structural properties of complex network on the phase synchronization are analyzed. The synchronization of Hindmarsh-Rose neurons are evaluated and compared on different structured network like random, regular, small-world, scale-free and modular networks. Interestingly, it was found that networks with high clustering coefficient and neutral degree mixing pattern promote better synchronization. Some chimera like state are also found in different structural networks. Further the effect of time delay dynamics on the synchronization of nonlinearly coupled network of Hindmarsh-Rose neurons are illustrated. (C) 2018 Published by Elsevier Inc.
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