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

Figure 1

Notations for null-isoclines, regular/virtual equilibria, pseudoequilibrium, and sliding segment. The parameter values are fixed as follows: 𝑎=0.7, 𝑏=0.6, 𝑟=1.2, 𝑘=12, 𝛽=0.5, 𝛿=0.25, 𝑞₁=0.25, 𝑞₂=0.1, and ET=5.