Figure 11

Bifurcation diagram of system (1): (A) with respect to p and \(h = 1.6\), \(\tau = 10\), \(\delta = 0.1\); (B) with respect to h and \(p = 0.76\), \(\tau = 7.1\), \(\delta = 0.1\); (C) with respect to τ and \(p = 0.08\), \(h = 7.8\), \(\delta = 0.1\); (D) with respect to δ and \(p = 0.078\), \(h = 9\), \(\tau = 3.5\). The other parameters are \(r = 1\), \(K = 50\), \(q = 0.2533\), \(a = 0.005\), \(c = 0.45\), \(v = 0.07\), \(\varepsilon = 4.11\), \(m = 0.36\), \(b = 0.19\), \(ET = 25\)