Figure 7
From: Chaotic systems with variable indexs for image encryption application

Poincare sections on \(x_3=2\) planes. (a) poincare section when \(i_{(3)}=k_{(3)}=2\) and \(a=4.5\). (b) poincare section when \(i_{(3)}=k_{(3)}=3\) and \(a=4.5\). (c) poincare section when \(i_{(3)}=k_{(3)}=4\) and \(a=4.5\). (d) poincare section when \(i_{(3)}=k_{(3)}=6\) and \(a=4.5\).