English

The two-dimensional fractional orthogonal derivative

Classical Analysis and ODEs 2020-12-29 v1

Abstract

This paper is an edited and shortened version of Chapter 6 from the thesis of the author. First the one dimensional orthogonal derivative will be extended to the two-dimensional case. In the two-dimensional case we have to define the region of integration. In this paper we treat the integration over the square region and over the triangle region where in the last case we use biorthogonal polynomials expressed in terms of Appell functions. Next the two-dimensional orthogonal derivative will be extended to the two-dimensional fractional orthogonal derivative. The results are highly dependent on the F1F_1,\ F2F_2 and F3F_3 Appell functions.

Keywords

Cite

@article{arxiv.2012.14189,
  title  = {The two-dimensional fractional orthogonal derivative},
  author = {Enno Diekema},
  journal= {arXiv preprint arXiv:2012.14189},
  year   = {2020}
}
R2 v1 2026-06-23T21:29:05.791Z