Periodic Solution of Prey-Predator Model with Beddington-DeAngelis Functional Response and Impulsive State Feedback Control

Figure 11

The phase portraits of system (1.3) with 𝑝=0.4, 𝑞=0.4, 𝑥₀=0.22, 𝑦₀=0.114, 𝜄=0.6, and different ℎ: (a) ℎ=1.2; (b) ℎ=0.81; (c) ℎ=0.23.

(a)

(b)

(c)