Multiple metastable rotating waves and long transients in cooperative CNN rings

This paper further investigates on the phenomena leading to the existence of long transient oscillations in a class of cooperative cellular neural network (CNN) rings. It is shown, by analytic arguments, numerical simulations, and laboratory experiments, that the transients are due to the existence of several symmetric and nonsymmetric metastable rotating waves in the CNN ring which are strongly attracting along the stable manifold and weakly repelling along the unstable manifold.