Evolution, its Fractional Extension and Generalization
Abstract
The evolution of a quantity, described by a function of space and time, relates the first derivative in time of this function to a spatial operator applied to the function. The initial value of the function at time t=0 is given. The fractional extension of this evolution consists of replacing the first derivative in time by a fractional derivative of order α, 0 < α 1. We give a relationship between the solution of the equation of evolution and the solution of the equation belonging to its fractional extension.
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