Mathematical Modelling of the Inhibitory Role of Regulatory T Cells in Tumor Immune Response

Figure 4

The bifurcation diagrams of with respect to for different and 0.0004, respectively. The stable state is represented by the blue curve, and the unstable one corresponds to the red curve. The equilibria are , and of system (3) (in order to distinguish from , we move up a little bit). (a) . (b) .

(a)

(b)