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Existence and exponential stability of periodic solutions for a class of Cohen-Grossberg neural networks with time-varying delays. (English) Zbl 1145.34049
A class of Cohen-Grossberg neural networks with time-varying delays is studied. Sufficient conditions for existence and exponentially stability of the periodic solutions are obtained by means of the concidence degree theorem and differential inequality techniques. An illustrative example is given as well.

MSC:
34K60 Qualitative investigation and simulation of models involving functional-differential equations
92B20 Neural networks for/in biological studies, artificial life and related topics
34K20 Stability theory of functional-differential equations
34K13 Periodic solutions to functional-differential equations
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