Figure 3From: Periodic pulse control of Hopf bifurcation in a fractional-order delay predator–prey model incorporating a prey refugeWaveform plots of system (2.2) with initial values \((6.46,5.1)\) in Example 1. The delay is chosen as: \(\tau =5.1>\tau _{0}=4.9967\). This figure illustrates that the coexistence equilibrium \(\varepsilon _{2}=(5.5556, 4.8148)\) is unstableBack to article page