Local Fractional Derivatives of Differentiable Functions are Integer-order Derivatives or Zero

Abstract

In this paper we prove that local fractional derivatives of differentiable functions are integer-order derivative or zero operator. We demonstrate that the local fractional derivatives are limits of the left-sided Caputo fractional derivatives. The Caputo derivative of fractional order alpha of function f(x) is defined as a fractional integration of order (n-alpha) of the derivative f^(n)(x) of integer order n. The requirement of the existence of integer-order derivatives allows us to conclude that the local fractional derivative cannot be considered as the best method to describe nowhere differentiable functions and fractal objects. We also prove that unviolated Leibniz rule cannot hold for derivatives of orders alpha, which are not equal to one.

LaTeX, 9 pages

References in corpus (2)

• Vector Calculus in Non-Integer Dimensional Space and its Applications to Fractal Media
• Anisotropic Fractal Media by Vector Calculus in Non-Integer Dimensional Space

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