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Globally asymptotical stability of discrete-time analog neural networks

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2 Author(s)
Liang Jin ; SED Syst. Inc., Saskatoon, Sask., Canada ; M. M. Gupta

Some globally asymptotical stability criteria for the equilibrium states of a general class of discrete-time dynamic neural networks with continuous states are presented using a diagonal Lyapunov function approach. The neural networks are assumed to have the asymmetrical weight matrices throughout the paper. The resulting criteria are described by the diagonal stability of some matrices associated with the network parameters. Some novel stability conditions represented by either the existence of the positive diagonal solutions of the Lyapunov equations or some inequalities are given. Using the equivalence between the diagonal stability and the Schur stability for a nonnegative matrix, some simplified global stability conditions are also presented. Finally, some examples are provided for demonstrating the effectiveness of the global stability conditions presented

Published in:

IEEE Transactions on Neural Networks  (Volume:7 ,  Issue: 4 )