Fractional-order systems without equilibria: The first example of hyperchaos and its application to synchronization
Cafagna Donato†, Grassi Giuseppe
       
Stability region (in grey color) of the error system ( 25 ) under condition ( 27 ) for q = 0.96. The figure is not in scale. The selected eigenvalues (0.2 + i9.5, 0.2-i9.5, 0.5 + i10.04, 0.5 – i10.04) have positive real parts but belong to the stability region.