English
Related papers

Related papers: Two consequences of Davies's Hardy inequality

200 papers

Hardy's paradox provides an all-versus-nothing fashion to directly certify that quantum mechanics cannot be completely described by local realistic theory. However, when considering potential imperfections in experiments, like imperfect…

Quantum Physics · Physics 2022-11-28 Shuai Zhao , Qing Zhou , Si-Ran Zhao , Xin-Yu Xu , Wen-Zhao Liu , Li Li , Nai-Le Liu , Qiang Zhang , Jing-Ling Chen , Kai Chen

[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

The purpose of this article is to establish the dual version of the uniform cover inequality of Bollobas and Thomason.

Metric Geometry · Mathematics 2018-02-12 Dimitris-Marios Liakopoulos

We show that Hardy's uncertainty principle can be reformulated in such a way that it has an analogue even for compact Lie groups and symmetric spaces of compact type.

Functional Analysis · Mathematics 2013-12-05 Sundaram Thangavelu

In this paper, we first prove the Hardy-Sobolev inequality for the Hessian integral by means of a descent gradient flow of certain Hessian functionals. As an application, we study the existence and regularity results of solutions to related…

Analysis of PDEs · Mathematics 2025-05-07 Rongxun He , Wei Ke

In this paper, we will prove several new inequalities of Hardy's types with explicit constants. The main results will be proved by making use of some generalizations of Opial's type inequalities and H\"older's inequality. To the best of the…

Classical Analysis and ODEs · Mathematics 2011-12-21 S. H. Saker

In this paper, we prove the Hardy-Leray inequality and related inequalities in variable Lebesgue spaces. Our proof is based on a version of the Stein-Weiss inequality in variable Lebesgue spaces derived from two weight inequalities due to…

Classical Analysis and ODEs · Mathematics 2023-03-28 David Cruz-Uribe , Durvudkhan Suragan

We prove Davis decompositions for vector valued Hardy martingales and illustrate their use. This paper continues our previous work on Davis and Garsia inequalities for scalar Hardy martingales.

Functional Analysis · Mathematics 2016-06-29 Paul F. X. Müller

In this paper we prove sharp Hardy inequalities by using Maximal function theory. Our results improve and extend the well-known results of G.Hardy \cite{Ha04}, T.Cazenave \cite {Ca03}, J.-Y.Chemin\cite {Ch06} and T.Tao\cite {TT06}.

Analysis of PDEs · Mathematics 2007-05-23 Jia Yuan , Junyong Zhang

The current status concerning Hardy-type inequalities with sharp constants is presented and described in a unified convexity way. In particular, it is then natural to replace the Lebesgue measure $dx$ with the Haar measure $dx/x.$ There are…

Classical Analysis and ODEs · Mathematics 2023-02-27 Lars-Erik Persson , Natasha Samko , George Tephnadze

We give a~new proof of the known criteria for the inequality \begin{equation*} \left(\int_{0}^{\infty}\left(\int_{0}^{t}f\right)^{q}w(t)\,dt\right)^{\frac{1}{q}} \leq C \left(\int_{0}^{\infty}f^{p}v\right)^{\frac{1}{p}}. \end{equation*} The…

Classical Analysis and ODEs · Mathematics 2021-10-01 Amiran Gogatishvili , Luboš Pick

We prove a reverse form of the multidimensional Brascamp-Lieb inequality. Our method also gives a new way to derive the Brascamp-Lieb inequality and is rather convenient for the study of equality cases.

Functional Analysis · Mathematics 2016-09-07 Franck Barthe

In this article we study various forms of the Hardy inequality for affine connections on a complete noncompact Riemannian manifold, including the two-weight Hardy inequality, the improved Hardy inequality, the Rellich inequality, the…

Analysis of PDEs · Mathematics 2024-02-05 Pengyan Wang , Huiting Chang

In this paper the double-sided Taylor's approximations are studied. A short proof of a well-known theorem on the double-sided Taylor's approximations is introduced. Also, two new theorems are proved regarding the monotonicity of such…

Classical Analysis and ODEs · Mathematics 2018-11-27 Branko Malesevic , Marija Rasajski , Tatjana Lutovac

We prove the Hardy-Littlewood theorem in two dimensions for functions whose Fourier coefficients obey general monotonicity conditions and, importantly, are not necessarily positive. The sharpness of the result is given by a counterexample,…

Classical Analysis and ODEs · Mathematics 2023-10-06 Kristina Oganesyan

We prove a Hardy inequality for ultraspherical expansions by using a proper ground state representation. From this result we deduce some uncertainty principles for this kind of expansions. Our result also implies a Hardy inequality on…

Classical Analysis and ODEs · Mathematics 2017-03-10 Alberto Arenas , Óscar Ciaurri , Edgar Labarga

Sharp extensions of Pitt's inequality and bounds for Stein-Weiss fractional integrals are obtained that incorporate gradient forms and vector-valued operators. Such results include Hardy-Rellich inequalities.

Analysis of PDEs · Mathematics 2007-05-23 William Beckner

A simple normal form for Hardy operators is introduced that unifies and simplifies the theory of weighted Hardy inequalities. A straightforward transition to normal form is given that applies to the various Hardy operators and their duals,…

Functional Analysis · Mathematics 2022-01-20 Gord Sinnamon

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 study certain double--series inequalities, which are motivated by weighted Hardy inequalities.

Classical Analysis and ODEs · Mathematics 2011-12-20 Peng Gao