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We prove a simple sufficient criteria to obtain some Hardy inequalities on Riemannian manifolds related to quasilinear second-order differential operator $\Delta_{p}u := \Div(\abs{\nabla u}^{p-2}\nabla u)$. Namely, if $\rho$ is a…

Analysis of PDEs · Mathematics 2013-04-16 Lorenzo D'Ambrosio , Serena Dipierro

In this paper, we prove a $p$-Hardy inequality on the discrete half-line with weights $n^{\alpha}$ for all real $p > 1$. Building on the work of Miclo for $p = 2$ and Muckenhoupt in the continuous settings, we develop a quantitative…

Functional Analysis · Mathematics 2025-01-03 Ali Barki

The motive of this note is twofold. Inspired by the recent development of a new kind of Hardy inequality, here we discuss the corresponding Hardy-Rellich and Rellich inequality versions in the integral form. The obtained sharp Hardy-Rellich…

Functional Analysis · Mathematics 2025-05-14 Tohru Ozawa , Prasun Roychowdhury , Durvudkhan Suragan

We investigate the Hardy and Rellich inequalities for classes of antisymmetric and odd functions and general exponent $p$. The obtained constants are better than the classical ones.

Classical Analysis and ODEs · Mathematics 2024-04-30 Michał Kijaczko

We prove a sharp $L^p$ weighted Hardy inequality involving boundary distance $\delta$ for any domain $\Omega\subsetneq \mathbb R^n$. The inequality may be improved substantially under the additional assumption that $-\log \delta$ is…

Analysis of PDEs · Mathematics 2020-07-21 Bo-Yong Chen

In this paper, we prove a sharp, weighted Hardy-type inequality for the Dirac operator. A key feature of our result is that the inequality is not only sharp but also attained, and we construct explicit minimizers that satisfy the equality…

Analysis of PDEs · Mathematics 2024-11-18 Luca Fanelli , Fabio Pizzichillo

Let M be an N-function satisfying the $\Delta_2$- condition, let $\omega, \vp$ be two other functions, $\omega\ge 0$. We study Hardy-type inequalities \[ \int_{\rp} M(\omega (x)|u(x)|) {\rm exp}(-\vp (x))dx \le C\int_{\rp} M(|u'(x)|) {\rm…

Analysis of PDEs · Mathematics 2009-03-27 Agnieszka Kalamajska , Katarzyna Pietruska-Paluba

We present several operator versions of the Dunkl--Williams inequality with respect to the $p$-angular distance for operators. More precisely, we show that if $A, B \in \mathbb{B}(\mathscr{H})$ such that $|A|$ and $|B|$ are invertible,…

Operator Algebras · Mathematics 2012-03-22 F. Dadipour , M. Fujii , M. S. Moslehian

As a corollary to our main result we deduce sharp A_p$ inequalities for T being either the Hilbert transform in dimension d=1, the Beurling transform in dimension d=2, or a Riesz transform in any dimension d\ge 2. For T_{\ast} the maximal…

Classical Analysis and ODEs · Mathematics 2011-03-30 Tuomas P. Hytönen , Michael T. Lacey , Maria Carmen Reguera , Armen Vagharshakyan

In this paper, generalised weighted $L^p$-Hardy,$ L^p$-Caffarelli-Kohn-Nirenberg, and $L^p$-Rellich inequalities with boundary terms are obtained on stratified Lie groups. As consequences, most of the Hardy type inequalities and Heisenberg-…

Analysis of PDEs · Mathematics 2017-07-24 Michael Ruzhansky , Bolys Sabitbek , Durvudkhan Suragan

We prove sharp Pitt's inequality for the Dunkl transform in $L^{2}(\mathbb{R}^{d})$ with the corresponding weights. As an application, we obtain the logarithmic uncertainty principle for the Dunkl transform.

Classical Analysis and ODEs · Mathematics 2015-05-13 Dmitry Gorbachev , Valery Ivanov , Sergey Tikhonov

In this paper we establish the subelliptic Picone type identities. As consequences, we obtain Hardy and Rellich type inequalities for anisotropic p-sub- Laplacians which are operators of the form $$ \mathcal{L}_p f :=…

Analysis of PDEs · Mathematics 2020-05-07 Michael Ruzhansky , Bolys Sabitbek , Durvudkhan Suragan

We study potential operators associated with Laguerre function expansions of convolution and Hermite types, and with Dunkl-Laguerre expansions. We prove qualitatively sharp estimates of the corresponding potential kernels. Then we…

Classical Analysis and ODEs · Mathematics 2016-07-06 Adam Nowak , Krzysztof Stempak

Let $L$ be a one-to-one operator of type $\omega$ having a bounded $H_\infty$ functional calculus and satisfying the $k$-Davies-Gaffney estimates with $k\in{\mathbb N}$. In this paper, the authors introduce the weak Hardy space…

Classical Analysis and ODEs · Mathematics 2014-12-02 Jun Cao , Der-Chen Chang , Huoxiong Wu , Dachun Yang

In this paper, we consider a weighted version of one-dimensional discrete Hardy inequalities with power weights of the form $n^\alpha$. We prove the inequality when $\alpha$ is an even natural number with the sharp constant and remainder…

Functional Analysis · Mathematics 2024-03-12 Shubham Gupta

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

We prove several interesting equalities for the integrals of higher order derivatives on the homogeneous groups. As consequences, we obtain the sharp Hardy--Rellich type inequalities for higher order derivatives including both the…

Functional Analysis · Mathematics 2017-08-31 Van Hoang Nguyen

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

This paper is devoted to Hardy type inequalities with remainders for compactly supported smooth functions on open sets in the Euclidean space. We establish new inequalities with weight functions depending on the distance function to the…

Functional Analysis · Mathematics 2020-03-20 Makarov R. V. , Nasibullin R. G

We give improvements and generalizations of both the classical Hardy inequality and the geometric Hardy inequality based on the divergence theorem. Especially, our improved Hardy type inequality derives both two Hardy type inequalities with…

Analysis of PDEs · Mathematics 2021-04-06 Megumi Sano