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Johensen, J. (2010) Simple Proofs of Nowhere-Differentiability for Weierstrass’s Function and Cases of Slow Growth. Journal of Fourier Analysis and Applications, 16, 17-33.
http://dx.doi.org/10.1007/s00041-009-9072-2

has been cited by the following article:

• TITLE: Fractional Weierstrass Function by Application of Jumarie Fractional Trigonometric Functions and Its Analysis

  AUTHORS: Uttam Ghosh, Susmita Sarkar, Shantanu Das

  KEYWORDS: Hölder Exponent, Fractional Weierstrass Function, Box Dimension, Jumarie Fractional Derivative, Jumarie Fractional Trigonometric Function

  JOURNAL NAME: Advances in Pure Mathematics, Vol.5 No.12, October 13, 2015

  ABSTRACT: The classical example of no-where differentiable but everywhere continuous function is Weierstrass function. In this paper we have defined fractional order Weierstrass function in terms of Jumarie fractional trigonometric functions. The H?lder exponent and Box dimension of this new function have been evaluated here. It has been established that the values of H?lder exponent and Box dimension of this fractional order Weierstrass function are the same as in the original Weierstrass function. This new development in generalizing the classical Weierstrass function by use of fractional trigonometric function analysis and fractional derivative of fractional Weierstrass function by Jumarie fractional derivative, establishes that roughness indices are invariant to this generalization.