Research Article

Bifurcations and Periodic Solutions for an Algae-Fish Semicontinuous System

Figure 3

It represents the proof on Theorem 17. In (a) and (b), the line and the line represent impulsive set and phase set, respectively. The cures represent trajectory of system (1), and the lines denote impulsive line of system (1).
619721.fig.003a
(a)
619721.fig.003b
(b)