Positive Almost Periodic Solutions for a Discrete Competitive System Subject to Feedback Controls

Figure 2

2-dimensional phase portrait. (a) Phase portrait of 𝑥^∗₁(𝑛) and 𝑥^∗₂(𝑛) with initial values 𝑥^∗₁(0)=1.18,𝑥^∗₂(0)=0.96 for 𝑛∈[0,100], respectively. (b) Phase portrait of 𝑢^∗₁(𝑛) and 𝑢^∗₂(𝑛) with initial values 𝑢^∗₁(0)=0.024,𝑢^∗₂(0)=0.023 for 𝑛∈[0,100], respectively.

(a)

(b)