R. Faure, NEURAL NETWORKS AND MATHEMATICAL DISTRIBUTIONS THEORY - PERIODICAL AND ALMOST PERIODICAL DIRAC FIRINGS, Computers & mathematics with applications, 27(6), 1994, pp. 93-97
In this paper, we study a neural network. In this set, each neuron is
characterized by its neural potential and its sequence of firings (Dir
ac sequence distribution). All the neurons are connected by continuous
links and also Dirac excitation (impulses = firings). With the use of
a small parameter lambda, the neural network can be represented by a
system of nonlinear differential equations. The existence of almost ge
neralized periodical oscillation is established. The set has a memory,
according to the theory of J.J. Hopfield [1].