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Synchronization analysis in an array of asymmetric neural networks with time-varying delays and nonlinear coupling. (English) Zbl 1194.34145
Summary: The global exponential synchronization is investigated for an array of asymmetric neural networks with time-varying delays and nonlinear coupling, assuming neither the differentiability for time-varying delays nor the symmetry for the inner coupling matrices. By employing a new Lyapunov-Krasovskii functional, applying the theory of Kronecker product of matrices and the technique of linear matrix inequality (LMI), a delay-dependent sufficient condition in LMIs form for checking global exponential synchronization is obtained. The proposed result generalizes and improves the earlier publications. An example with chaotic nodes is given to show the effectiveness of the obtained result.
##### MSC:
 34K25 Asymptotic theory of functional-differential equations 34K20 Stability theory of functional-differential equations 34D06 Synchronization
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