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We investigate necessary and sufficient conditions on the weights for the Hardy-Rellich inequalities to hold, and propose a new way to use the notion of Bessel pair to establish the optimal Hardy-Rellich type inequalities. Our results…

偏微分方程分析 · 数学 2023-10-11 Anh Xuan Do , Nguyen Lam , Guozhen Lu

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…

偏微分方程分析 · 数学 2018-07-11 Angelo Alvino , Adele Ferone , Anna Mercaldo , Futoshi Takahashi , Roberta Volpicelli

We prove local refined versions of Hardy's and Rellich's inequalities as well as of uncertainty principles for sums of squares of vector fields on bounded sets of smooth manifolds under certain assumptions on the vector fields. We also give…

偏微分方程分析 · 数学 2016-03-30 Michael Ruzhansky , Durvudkhan Suragan

We prove a one-dimensional Hardy inequality on the halfline with sharp constant, which improves the classical form of this inequality. As a consequence of this new inequality we can rederive known doubly weighted Hardy inequalities. Our…

偏微分方程分析 · 数学 2022-04-05 Rupert L. Frank , Ari Laptev , Timo Weidl

We obtain sharp Hardy inequalities on antisymmetric functions where antisymmetry is understood for multi-dimensional particles. Partially it is an extension of the previously published paper \cite{HL}, where Hardy's inequalities were…

偏微分方程分析 · 数学 2023-06-16 Thomas Hoffmann-Ostenhof , Ari Laptev , Il'ya Shcherbakov

Given a homogeneous k-th order differential operator $A (D)$ on $\mathbb{R}^n$ between two finite dimensional spaces, we establish the Hardy inequality $$\int_{\mathbb{R}^n} \frac{\lvert D^{k-1}u\rvert}{\lvert x \rvert} \,\mathrm{d} x \leq…

泛函分析 · 数学 2019-04-11 Pierre Bousquet , Jean Van Schaftingen

We establish in this paper some weighted Hardy and Rellich type inequalities on the half line in the framework of equalities, extending recent results proved by Machihara-Ozawa-Wadade and Bez-Machihara-Ozawa. In particular, the…

经典分析与常微分方程 · 数学 2023-04-04 Yi C. Huang , Fuping Shi

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…

偏微分方程分析 · 数学 2023-03-20 Debdip Ganguly , Prasun Roychowdhury

After works by Michael and Simon [10], Hoffman and Spruck [9], and White [14], the celebrated Sobolev inequality could be extended to submanifolds in a huge class of Riemannian manifolds. The universal constant obtained depends only on the…

微分几何 · 数学 2015-09-15 Márcio Batista , Heudson Mirandola , Feliciano Vitório

In this paper we prove sharp weighted Hardy-type inequalities on Carnot groups with the homogeneous norm $N=u^{1/(2-Q)}$ associated to Folland's fundamental solution $u$ for the sub-Laplacian $\Delta_{\mathbb{G}}$. We also prove uncertainty…

泛函分析 · 数学 2007-05-23 Ismail Kombe

We consider a family of Caffarelli-Kohn-Nirenberg interpolation inequalities and weighted logarithmic Hardy inequalities which have been obtained recently as a limit case of the first ones. We discuss the ranges of the parameters for which…

偏微分方程分析 · 数学 2012-12-06 Jean Dolbeault , Maria J. Esteban

We deal with Dirac operators with external homogeneous magnetic fields. Hardy-type inequalities related to these operators are investigated: for a suitable class of transversal magnetic fields, we prove a Hardy inequality with the same best…

数学物理 · 物理学 2016-03-24 Luca Fanelli , Luis Vega , Nicola Visciglia

Based on a new idea of factorization, we prove an improved discrete Rellich inequality and discuss its optimality. We also give a conjecture on improved higher order discrete Hardy-like inequalities and formulate an open problem for the…

谱理论 · 数学 2022-06-23 Borbala Gerhat , David Krejcirik , Frantisek Stampach

We first establish a family of sharp Caffarelli-Kohn-Nirenberg type inequalities on the Euclidean spaces and then extend them to the setting of Cartan-Hadamard manifolds with the same best constant. The quantitative version of these…

泛函分析 · 数学 2017-09-20 Van Hoang Nguyen

In this current work, we revisit the recent improvement of the discrete Hardy's inequality in one dimension and establish an extended improved discrete Hardy's inequality with its optimality. We also study one-dimensional discrete Copson's…

泛函分析 · 数学 2023-04-18 Bikram Das , Atanu Manna

In this paper we obtain weighted higher order Rellich, weighted Gagliardo-Nirenberg, Trudinger, Caffarelli-Kohn-Nirenberg inequalities and the uncertainty principle for Dunkl operators. Moreover, we introduce an extension of the classical…

偏微分方程分析 · 数学 2019-08-20 Andrei Velicu , Nurgissa Yessirkegenov

In this paper, we develop an abstract framework for John-Nirenberg inequalities associated to BMO-type spaces. This work can be seen as the sequel of [5], where the authors introduced a very general framework for atomic and molecular Hardy…

泛函分析 · 数学 2010-03-03 Frederic Bernicot , Jiman Zhao

We present a simple method for proving Rellich inequalities on Riemannian manifolds with constant, non-positive sectional curvature. The method is built upon simple convexity arguments, integration by parts, and the so-called Riccati pairs,…

偏微分方程分析 · 数学 2025-08-20 Sándor Kajántó

We investigate Hardy-Rellich inequalities for perturbed Laplacians. In particular, we show that a non-trivial angular perturbation of the free operator typically improves the inequality, and may also provide an estimate which does not hold…

偏微分方程分析 · 数学 2021-11-22 Biagio Cassano , Lucrezia Cossetti , Luca Fanelli

We establish a new improvement of the classical $L^p$-Hardy inequality on the multidimensional Euclidean space in the supercritical case. Recently, in [14], there has been a new kind of development of the one dimensional Hardy inequality.…

泛函分析 · 数学 2024-01-12 Prasun Roychowdhury , Michael Ruzhansky , Durvudkhan Suragan