Ref: K. A. Mirus and J. C. Sprott, Phys. Lett. A 254, 275-278 (1999)
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Fig. 1. Recurrence plot histogram for the coupled Lorenz system.
The period-one peak occurs at m = 252.5 time steps, or f
Fig. 2. Results of perturbing a coupled Lorenz system as evidenced by
the Lyapunov dimension (DL) and the leading Lyapunov exponent
(LLE). The solid horizontal lines indicate values for the unperturbed
system. Note that a perturbation frequency f = 1.014 produces
a limit cycle for r1 = 4, 10, and 12.
Fig. 3. Spatiotemporal plot of xi vs time for the
coupled Lorenz equations. A perturbation amplitude of r1
= 4 and frequency f = 1.014 is turned on at t = 40 and off
at t = 160.