Universal Fractional Map and Cascade of Bifurcations Type Attractors
  We modified the way in which the Universal Map is obtained in the regular dynamics to derive the Universal $\alpha$-Family of Maps depending on a single parameter $\alpha > 0$ which is the order of the fractional derivative in the nonlinear fractional differential equation describing a system experiencing periodic kicks. We consider two particular $\alpha$-families corresponding to the Standard and Logistic Maps. For fractional $\alpha<2$ in the area of parameter values of the transition through the period doubling cascade of bifurcations from regular to chaotic motion in regular dynamics corresponding fractional systems demonstrate a new type of attractors - cascade of bifurcations type trajectories. 
Mark Edelman
nlin.CD physics.bio-ph