Fractional Dynamics with Non-Local Scaling

Abstract

Nonlinear fractional dynamics with scale invariance in continuous and discrete time approaches are described. We use non-integer-order integro-differential operators that can be interpreted as generalizations of scaling (dilation) differential operator for the case of non-locality. Nonlinear integro-differential equations with Hadamard type operators of non-integer orders with respect to time and periodic sequence of kicks are considered. Exact solutions of these equations are derived without using approximations. Using these solutions for discrete time points, we derive mappings with non-local scaling in time from proposed equations without approximation. Non-local mappings are obtained in general for arbitrary orders of the Hadamard type fractional operators. An example of these mappings with non-local scaling in time is given for arbitrary positive orders of integro-differential equations with kicks. The proposed mappings are independent of the period of kicks at zero initial conditions. The proposed approach can be used to describe the nonlinear fractional dynamics that is characterized by scale invariance.

30 pages, LaTeX

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