Periodic Epidemic Spreading over Complex Systems: Modeling and Analysis

Figure 1

Evolution of Model A, Model B, and its infectivity rate . (a) For Model A, the spreading scale oscillates violently within the interval (0.46, 0.5) on a cycle of two time steps; nevertheless, Model B shows a more interesting feature; the evolution curve of Model B displays a dual-cycle characteristic where the spreading scale evolutes on a minor cycle and a major cycle simultaneously. (b) is a magnified view of the revolution of the two models from which we can clearly see the minor cycles.

(a)

(b)