期刊
CHAOS
卷 22, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3701726
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资金
- National Natural Science Foundation of China [61104138]
- Guangdong Natural Science Foundation [S2011040001704]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong, China [LYM10074]
A general fractional-order dynamical network model for synchronization behavior is proposed. Different from previous integer-order dynamical networks, the model is made up of coupled units described by fractional differential equations, where the connections between individual units are nondiffusive and nonlinear. We show that the synchronous behavior of such a network cannot only occur, but also be dramatically different from the behavior of its constituent units. In particular, we find that simple behavior can emerge as synchronized dynamics although the isolated units evolve chaotically. Conversely, individually simple units can display chaotic attractors when the network synchronizes. We also present an easily checked criterion for synchronization depending only on the eigenvalues distribution of a decomposition matrix and the fractional orders. The analytic results are complemented with numerical simulations for two networks whose nodes are governed by fractional-order Lorenz dynamics and fractional-order Rossler dynamics, respectively. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3701726]
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