Fig. 17
From: Bistability and bifurcations in HIV-1 infection model with non-monotone responses
(a) The immune-free equilibrium exhibits backward bifurcation type III for the parameter ranges \(r = 0.058\), \(K = 10^5\), \(\beta = 0.9\), \(\epsilon = 0.9\), \(a \in (0,0.9)\), \(c=0.1\). (b) Backward bifurcation type III for the infected cell population of immune-free equilibrium.
