Research Article

On the Dynamical Complexity of a Seasonally Forced Discrete SIR Epidemic Model with a Constant Vaccination Strategy

Figure 6

(a) Variation of the mean value of the positive Lyapunov exponents, , with the proportion of susceptibles who received constant vaccination, , for (green) and (blue). (b) Variation of the derivative function , for (green) and (blue).
(a)
(b)