358930.fig.006a
(a)
358930.fig.006b
(b)
358930.fig.006c
(c)
358930.fig.006d
(d)
Figure 6: Different attractors’ coexistence: solution with initial value will finally tend to strange attractor, solution with will finally tend to periodic solution when , solution with initial value will finally tend to strange attractor, and solution with will finally tend to periodic solution when , respectively.