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Fourier Series in Fractional Dimensional Space

General Mathematics 2022-12-02 v1 Functional Analysis

Abstract

In this paper, a Fourier series in fractional dimensional space is introduced for an arbitrarily periodic function f(t;α)f(t;\alpha). We call it fractional Fourier series of the order α\alpha. Extending the basis functions of the linear space into fractional one, by rotation transformation, we define a real and complex Fourier series and obtain their coefficients. It is also shown that the fractional derivative of a periodic function can be realized through (fractional) Fourier series with modified coefficients.

Keywords

Cite

@article{arxiv.2212.00049,
  title  = {Fourier Series in Fractional Dimensional Space},
  author = {Ali Dorostkar and Ahmad Sabihi},
  journal= {arXiv preprint arXiv:2212.00049},
  year   = {2022}
}