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

Figure 7

Various periodic oscillations in system (4) with a = 7, b = 3, c = 5, d = 0.75, and k = 1: (a) IC = (0.1, 0.1, 0.1, 0.1) is blue, (0.1, −0.1, 0.1, 0.1) is red, (b) IC = (0.1, 5, 0.1, 0.1) is blue, (0.1, −5, 0.1, 0.1) is red, and (c) IC = (0.1, 10, 0.1, 0.1) is blue, (0.1, −10, 0.1, 0.1) is red.

(a)

(b)

(c)