Filippov Ratio-Dependent Prey-Predator Model with Threshold Policy Control

Figure 4

Boundary node bifurcation for Filippov system (3). The parameter values are fixed as follows: 𝑎=0.7, 𝑏=0.6, 𝑟=1.5, 𝑘=12, 𝛽=0.5, 𝛿=0.25, 𝑞₁=0.25, and 𝑞₂=0.1.

(a) ET=4

(b) ET=4.6667

(c) ET=5.8