Stability of Almost Periodic Solution for a General Class of Discontinuous Neural Networks with Mixed Time-Varying Delays

Figure 5

Phase plane behavior of the state variables 𝑥₁, 𝑥₂, and 𝑥₃ when 𝐼(𝑡)=(2sin𝑡,−cos𝑡,−5sin2𝑡)^𝑇.