A new four-dimensional hyperjerk system with stable equilibrium point, circuit implementation, and its synchronization by using an adaptive integrator backstepping control
Singh J P1, †, Pham V T2, Hayat T3, 4, Jafari S5, Alsaadi F E6, Roy B K1
       

(color online) Bifurcation diagram and Lyapunov spectrum with the variation of parameter a ∈ [2.6, 2.75] and b = 1.43, c = 2.18, d = 6.11, f = 2.65, and g = 1.74.