Numerical Studies for Fractional-Order Logistic Differential Equation with Two Different Delays

Figure 4

Show phase portrait of the system, that is, plot of 𝑥(𝑡) versus 𝑥(𝑡−𝑟₁) (a) and plot of 𝑥(𝑡) versus 𝑥(𝑡−𝑟₂) (b) at 𝑟₁=0.7, 𝑟₂=0.7, and 𝛼=0.85.

(a)

(b)