Global Dynamics of a Virus-Immune System with Virus-Guided Therapy and Saturation Growth of Virus

Figure 4

Solution trajectories of Filippov system (3) for Case with different threshold conditions. (a) The boundary equilibrium is globally asymptotically stable, here ; (b) the pseudoequilibrium is globally asymptotically stable, here ; (c) the pseudoequilibrium is globally asymptotically stable, here ; (d) the pseudoequilibrium is globally asymptotically stable, here ; (e) the regular equilibrium is globally asymptotically stable, here ; (f) the regular equilibrium and the pseudoequilibrium are bistable, here . Parameter values are chosen as follows: , , , , , , , , and .

(a)

(b)

(c)

(d)

(e)

(f)