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A Paley type inequality for the Fourier transform on $H^p(H^n);$ the Hardy space on the Heisenberg group, is obtained for $0 < p \leq 1.$

Functional Analysis · Mathematics 2013-12-24 Rahmouni Atef

\begin{abstract} For the Hardy space $H^p(\mathbb{R}^{d})$, $ 0<p\leq 1,$ we shall improve a Hardy's type inequality associated with Dunkl transform respect to the measures $d\mu_{k}$ homogeneous of degree $\gamma ,$ on the strip…

Functional Analysis · Mathematics 2013-05-02 Rahmouni Atef

We do research on the real method of Hardy spaces associated with the Dunkl setting on the real line for the range of 0<p<=1.

Classical Analysis and ODEs · Mathematics 2022-06-30 Zhuo Ran Hu

Let $\Delta$ and $L=\Delta -\|\mathbf x\|^2$ be the Dunkl Laplacian and the Dunkl harmonic oscillator respectively. We define the Hardy space $\mathcal H^1$ associated with the Dunkl harmonic oscillator by means of the nontangential maximal…

Functional Analysis · Mathematics 2019-05-14 Agnieszka Hejna

For $p>p_0=\frac{2\lambda}{2\lambda+1}$ with $\lambda>0$, the Hardy space $H_{\lambda}^p(\mathbb{R}_+^2)$ associated with the Dunkl transform $\mathcal{F}_\lambda$ and the Dunkl operator $D$ on the real line $\mathbb{R}$, where…

Analysis of PDEs · Mathematics 2022-06-30 ZhuoRan Hu

In this article, we establish an analogue of Pitt's inequality for the Strichartz Fourier transform on the Heisenberg group $\mathbb{H}^n$. By exploiting the scalar-valued formulation of the transform and the framework of decreasing…

Functional Analysis · Mathematics 2026-03-03 Aparajita Dasgupta , Prerna Gulia , Sanjoy Pusti , Sundaram Thangavelu

We prove an improved version of Poincar\'e-Hardy inequality in suitable subspaces of the Sobolev space on the hyperbolic space via Bessel pairs. As a consequence, we obtain a new Hardy type inequality with an improved constant (than the…

Analysis of PDEs · Mathematics 2023-03-20 Debdip Ganguly , Prasun Roychowdhury

We prove Hardy-type inequalities for a fractional Dunkl--Hermite operator which incidentally give Hardy inequalities for the fractional harmonic oscillator as well. The idea is to use $h$-harmonic expansions to reduce the problem in the…

Classical Analysis and ODEs · Mathematics 2016-09-06 Ó. Ciaurri , L. Roncal , S. Thangavelu

Some q-analysis variants of Hardy type inequalities of the form \int_0^b (x^{\alpha-1} \int_0^x t^{-\alpha} f(t) d_qt)^p d_qx \leq C \int_0^b f^p(t) d_qt with sharp constant C are proved and discussed. A similar result with the…

Classical Analysis and ODEs · Mathematics 2014-03-26 Lech Maligranda , Ryskul Oinarov , Lars-Erik Persson

We prove fractional Sobolev-Poincar\'e inequalities, capacitary versions of fractional Poincar\'e inequalities, and pointwise and localized fractional Hardy inequalities in a metric space equipped with a doubling measure. Our results…

Classical Analysis and ODEs · Mathematics 2021-08-17 Bartłomiej Dyda , Juha Lehrbäck , Antti V. Vähäkangas

In this paper we study various forms of the Hardy inequality for Dunkl operators, including the classical inequality, $L^p$ inequalities, an improved Hardy inequality, as well as the Rellich inequality and a special case of the…

Functional Analysis · Mathematics 2020-06-22 Andrei Velicu

In this paper, we prove several versions of the classical Paley inequality for the Weyl transform. As an application, we discuss $L^p$-$L^q$ boundedness of the Weyl multipliers and prove a version of the H\"ormander's multiplier theorem. We…

Classical Analysis and ODEs · Mathematics 2023-07-06 Ritika Singhal , N. Shravan Kumar

The paper deals about Hardy-type inequalities associated with the following higher order Poincar\'e inequality: $$ \left( \frac{N-1}{2} \right)^{2(k -l)} := \inf_{ u \in C_{c}^{\infty} \setminus \{0\}} \frac{\int_{\mathbb{H}^{N}}…

Classical Analysis and ODEs · Mathematics 2015-11-03 Elvise Berchio , Debdip Ganguly

We prove second and fourth order improved Poincar\'e type inequalities on the hyperbolic space involving Hardy-type remainder terms. Since theirs l.h.s. only involve the radial part of the gradient or of the laplacian, they can be seen as…

Functional Analysis · Mathematics 2020-08-31 Elvise Berchio , Debdip Ganguly , Prasun Roychowdhury

In this paper some extensions of Hardy's integral inequalities to $0<p\leq 1$ are established.

Classical Analysis and ODEs · Mathematics 2011-03-08 Shunchao Long

In this work we extend the theory of the classical Hardy space $H^1$ to the rational Dunkl setting. Specifically, let $\Delta$ be the Dunkl Laplacian on a Euclidean space $\mathbb{R}^N$. On the half-space $\mathbb{R}_+\times\mathbb{R}^N$,…

Functional Analysis · Mathematics 2018-02-20 Jean-Philippe Anker , Jacek Dziubański , Agnieszka Hejna

There is a lot of information available concerning Hardy-Hilbert type inequalities in one or more dimensions. In this paper we introduce the development of such inequalities on homogeneous groups. Moreover, we point out a unification of…

Functional Analysis · Mathematics 2025-02-17 Markos Fisseha Yimer , Lars Erik Persson , Michael Ruzhansky , Natasha Samko , Tsegaye Gedif Ayele

In this paper, by using hardy inequality, we establish some new integral inequalities of Hardy-Hilbert type with general kernel. As applications, equivalent forms and some particular results are built; the corresponding to the double series…

General Mathematics · Mathematics 2011-10-21 Guang-Sheng Chen

In the present paper, we investigate in Dunkl analysis, the action of some fundamental operators on the atomic Hardy space H1.

Functional Analysis · Mathematics 2015-03-17 Chokri Abdelkefi , Mongi Rachdi

In this paper we prove three differenttypes of the so-called many-particle Hardy inequalities. One of them is a "classical type" which is valid in any dimesnion $d\neq 2$. The second type deals with two-dimensional magnetic Dirichlet forms…

Analysis of PDEs · Mathematics 2014-02-26 M. Hoffmann-Ostenhof , T. Hoffmann-Ostenhof , A. Laptev , J. Tidblom
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