483492.fig.0015a
(a)
483492.fig.0015b
(b)
483492.fig.0015c
(c)
483492.fig.0015d
(d)
Figure 15: (The antikink wave is bifurcated from the antikink-like wave). The varying process for the graph of when , , , and , where , , , and (a) . (b) . (c) . (d) .