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arXiv · 2503.01094

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

Hanen Jilani·Selma Negzaoui
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Abstract

By comparing a function and its $(k, \frac{2}{n})-$Fourier transform to a Gaussian analogue, $e^{-na|x|^\frac{2}{n}}$, we establish a Hardy-type uncertainty principle using Phragmén-Lindlöf 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 $L^p-L^q$ versions, proving Miyachi-type and Cowling-Price-type theorems for the $(k,\frac{2}{n})$-Fourier transform.

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Hanen Jilani, Selma Negzaoui. 2026-04-20. Hardy's Theorem for the $(k,\frac{2}{n})-$Fourier Transform. https://arxiv.org/abs/2503.01094

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