English
Related papers

Related papers: An improved one-dimensional Hardy inequality

200 papers

In this short note, we improve the famous Reid Inequality related to linear operators.

Functional Analysis · Mathematics 2017-04-25 Mohammed Hichem Mortad

In this paper, we obtain sharp remainder terms for the Hardy-Poincar\'e inequalities with general non-radial weights in the setting of Baouendi-Grushin vector fields (see Theorem 2.5). It is worth emphasizing that all of our results are new…

Analysis of PDEs · Mathematics 2026-01-29 Yerkin Shaimerdenov , Nurgissa Yessirkegenov , Amir Zhangirbayev

We prove sharp inequalities of Hardy type for functions in the Sobolev space $W^{1,p}$ on the unit sphere $\mathbb{S}^{n-1}$ in $\mathbb{R}^{n}$. We achieve this in both the subcritical and critical cases. The method we use to show…

Functional Analysis · Mathematics 2020-06-15 Ahmed A. Abdelhakim

We prove an optimal Hardy inequality for the fractional Laplacian on the half-space.

Analysis of PDEs · Mathematics 2008-07-14 Krzysztof Bogdan , Bartłomiej Dyda

We continue our previous study of improved Hardy, Rellich and Uncertainty principle inequalities on a Riemannian manifold $M$, started in \cite{Kombe-Ozaydin}. In the present paper we prove new weighted Hardy-Poincar\'e, Rellich type…

Functional Analysis · Mathematics 2011-03-15 Ismail Kombe , Murad Özaydin

By using, among other things, the Fourier analysis techniques on hyperbolic and symmetric spaces, we establish the Hardy-Sobolev-Maz'ya inequalities for higher order derivatives on half spaces. The proof relies on a Hardy-Littlewood-Sobolev…

Analysis of PDEs · Mathematics 2017-03-24 Guozhen Lu , Qiaohua Yang

We prove that a pointwise fractional Hardy inequality implies a fractional Hardy inequality, defined via a Gagliardo-type seminorm. The proof consists of two main parts. The first one is to characterize the pointwise fractional Hardy…

Classical Analysis and ODEs · Mathematics 2024-04-09 Lizaveta Ihnatsyeva , Kaushik Mohanta , Antti V. Vähäkangas

We consider a multidimensional version of an inequality due to Leray as a substitute for Hardy's inequality in the case $p=n\geq2.$ In this paper we provide an optimal Sobolev-type improvement of this substitute, analogous to the…

Functional Analysis · Mathematics 2014-08-01 Georgios Psaradakis , Daniel Spector

We prove an improved version of the trace-Hardy inequality, so-called Kato's inequality, on the half-space in Finsler context. The resulting inequality extends the former one obtained by \cite{AFV} in Euclidean context. Also we discuss the…

Analysis of PDEs · Mathematics 2018-07-11 Angelo Alvino , Adele Ferone , Anna Mercaldo , Futoshi Takahashi , Roberta Volpicelli

A Hardy inequality of the form \[\int_{\tilde{\Omega}} |\nabla f({\bf{x}})|^p d {\bf{x}} \ge (\frac{p-1}{p})^p \int_{\tilde{\Omega}} \{1 + a(\delta, \partial \tilde{\Omega})(\x)\}\frac{|f({\bf{x}})|^p}{\delta({\bf{x}})^p} d{\bf{x}}, \] for…

Spectral Theory · Mathematics 2011-05-27 A. A. Balinsky , W. D. Evans , R. T. Lewis

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 improve constants in the Rademacher-Menchov inequality.

Probability · Mathematics 2007-05-23 Witold Bednorz

The classical Hormander's inequality for linear partial differential operators with constant coeffcients is extended to pseudodifferential operators.

Analysis of PDEs · Mathematics 2007-05-23 Chikh Bouzar

This is a chapter from PhD Thesis by Stefano Biagi (advisor: prof. A. Bonfiglioli). We overview existing results showing that it is possible to generalize the classical Hardy's Inequality to more general linear partial differential…

Analysis of PDEs · Mathematics 2016-01-29 Stefano Biagi , Andrea Bonfiglioli

We study Hardy type inequalities involving mixed cylindrical and spherical weights, for functions supported in cones. These inequalities are related to some singular or degenerate differential operators.

Analysis of PDEs · Mathematics 2023-05-10 Gabriele Cora , Roberta Musina , Alexander I. Nazarov

[1] investigates advanced connotations of Hardy and Rellich-type inequalities on complete noncompact Riemannian manifolds, delving on deriving inequalities that incorporate poignant weight functions. These inequalities prolongate classical…

Differential Geometry · Mathematics 2024-11-13 Shouvik Datta Choudhury

We consider the series expansion of the $L^p$-Hardy inequality of \cite{BFT2}, in the particular case where the distance is taken from an interior point of a bounded domain in $\mathbb{R}^n$ and $1<p\neq n$. For $p<n$ we improve it by…

Analysis of PDEs · Mathematics 2018-05-29 Konstantinos T. Gkikas , Georgios Psaradakis

We extend Hardy's inequality from sequences of non-negative numbers to sequences of positive semi-definite operators if the parameter p satisfies 1<p<=2, and to operators under a trace for arbitrary p>1. Applications to trace functions are…

Operator Algebras · Mathematics 2010-01-13 Frank Hansen

In this paper, we derive a new proof on some sharp double integral inequalities of the Hermite-Hadamard type. Our approach is mainly based on well-known Taylor's theorem with the integral remainder.

Functional Analysis · Mathematics 2008-05-06 Vu Nhat Huy , Wenjun Liu , Quoc Anh Ngo

We investigate the growth of the polynomial and multilinear Hardy--Littlewood inequalities. Analytical and numerical approaches are performed and, in particular, among other results, we show that a simple application of the best known…

Functional Analysis · Mathematics 2018-04-02 J. Campos , W. Cavalcante , V. Fávaro , D. Nuñez-Alarcón , D. Pellegrino , D. M. Serrano-Rodríguez