Adaptive control for a class of nonlinear complex dynamical systems with uncertain complex parameters and perturbations
Fig 1
The phase portrait of the chaotic attractor for unperturbed Duffing CVCSs Eq (1) with complex parameters α = 0.13, β = w = 1, γ′ = 0.18(1 + j), and initial values z1 = −0.2 − 0.2j, z2 = 0.