Dynamical Behaviors of the Stochastic Hopfield Neural Networks with Mixed Time Delays

Figure 1

Time trajectories (a) as well as the set 𝐵_𝐶 and several typical phase portraits (b) for the system in Example 8 (color online). Where initial values for 𝑡<0 are chosen as 𝑥(𝑡)=(50,80). For (b), only phase portraits for 𝑡≥0 are shown.

(a)

(b)