980578.fig.001a
(a) 3D view in the space  
980578.fig.001b
(b) 3D view in the space
980578.fig.001c
(c) 3D view in the space
980578.fig.001d
(d) 3D view in the space
980578.fig.001e
(e) Projection onto the plane
980578.fig.001f
(f) Projection onto the plane
980578.fig.001g
(g) Projection onto the plane
980578.fig.001h
(h) Projection onto the plane
980578.fig.001i
(i) Projection onto the plane
980578.fig.001j
(j) Projection onto the plane
Figure 1: Phase portraits of the dynamic system when , , , and and , , , , and .