English

Hardy's Theorem for the $(k,\frac{2}{n})-$Fourier Transform

Classical Analysis and ODEs 2026-04-21 v3

Abstract

By comparing a function and its (k,2n)(k, \frac{2}{n})-Fourier transform to a Gaussian analogue, enax2ne^{-na|x|^\frac{2}{n}}, we establish a Hardy-type uncertainty principle using Phragm\'en-Lindl\"of lemma. Furthermore, we investigate the heat equation in this context, deriving a dynamical version of Hardy's theorem that illustrates the temporal evolution of the uncertainty principle. We also extend our results to LpLqL^p-L^q versions, proving Miyachi-type and Cowling-Price-type theorems for the (k,2n)(k,\frac{2}{n})-Fourier transform.

Keywords

Cite

@article{arxiv.2503.01094,
  title  = {Hardy's Theorem for the $(k,\frac{2}{n})-$Fourier Transform},
  author = {Hanen Jilani and Selma Negzaoui},
  journal= {arXiv preprint arXiv:2503.01094},
  year   = {2026}
}