Hyperchaotic Oscillation in the Deformed Rikitake Two-Disc Dynamo System Induced by Memory Effect

Figure 6

Various periodic oscillations in system (4) with b = 2, c = 5, d = 0.75, and k = 1 and (a) a = 3.2, (b) a = 5.8, (c) a = 7, (d) a = 8.5, (e) a = 9, and (f) a = 9.8, IC = (0.1, 0.1, 0.1, 0.1) is blue, (−0 1, 0.1, 0.1, 0.1) is red, and (0.1, 0.1, −0.1, 0.1) is green.

(a)

(b)

(c)

(d)

(e)

(f)