Computation of the Domain of Attraction for Suboptimal Immunity Epidemic Models Using the Maximal Lyapunov Function Method

Figure 1

The DOA when (𝐴,𝛽,𝑣,𝑐,𝑎,𝜇,𝑘)=(19.2,0.5,1,10,0.5,1,0.25) for the model (17).