Special Session 4: Delay and Functional Differential Equations and Applications

Stability and Convergence in Asymptotic Systems of Neural Networks with Infinite Delays
Ahmed Elmwafy
Universidade da Beira Interior
Portugal
Co-Author(s):    A. Elmwafy, Jos\`{e} J. Oliveira, C\`esar M. Silva
Abstract:
We investigate both the global exponential stability and the existence of a periodic solution of a general differential equation with unbounded distributed delays. The main stability criterion depends on the dominance of the non-delay terms over the delay terms. The criterion for the existence of a periodic solution is obtained with the application of the coincidence degree theorem. We use the main results to get criteria for the existence and global exponential stability of periodic solutions of a generalized higher-order periodic Cohen-Grossberg neural network model with discrete-time varying delays and infinite distributed delays. Additionally, we provide a comparison with the results in the literature and a numerical simulation to illustrate the effectiveness of some of our results.