Figure 7

Numerical results in forced SISP model. Figures (a), (c), (e) are time-series plots, while (b,d,f) are phase plane plots of system (2). The forced parameters ω of (a), (b), (c), (d), and (e), (f) are 0.05, 0.30, and 0.55, respectively. The model’s parameters are as follows: \(\beta _{\mathrm{min}} = 0.01\), \(\delta _{\mathrm{min}} = 0.02\), \(\alpha = 0.40\), \(\mu = 0.13\), \(m = 0.10\), and \(\gamma = 0.50\)