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Related papers: Hardy inequalities and nonlocal capacity

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Sobolev embeddings, of arbitrary order, are considered into function spaces on domains of $\mathbb R^n$ endowed with measures whose decay on balls is dominated by a power $d$ of their radius. Norms in arbitrary rearrangement-invariant…

Functional Analysis · Mathematics 2019-12-10 Andrea Cianchi , Luboš Pick , Lenka Slavíková

Let $\Omega$ be an open set in a metric measure space $X$. Our main result gives an equivalence between the validity of a weighted Hardy-Sobolev inequality in $\Omega$ and quasiadditivity of a weighted capacity with respect to Whitney…

Classical Analysis and ODEs · Mathematics 2021-06-11 Lizaveta Ihnatsyeva , Juha Lehrbäck , Antti V. Vähäkangas

In this note, we give the affirmative answer of the question in [18], which is a compactness result of the non-radial Sobolev spaces. As an application, we show the existence of an extremal function of the critical Hardy inequality under…

Functional Analysis · Mathematics 2022-06-29 Shuji Machihara , Megumi Sano

The purpose of this article is twofold. The first is to strengthen fractional Sobolev type inequalities in Besov spaces via the classical Lorentz space. In doing so, we show that the Sobolev inequality in Besov spaces is equivalent to the…

Analysis of PDEs · Mathematics 2022-02-22 Pengtao Li , Rui Hu , Zhichun Zhai

In this article we first establish a complete characterization of Hardy's inequalities in $\mathbb{R}^n$ involving distances to different codimension subspaces. In particular the corresponding potentials have strong interior singularities.…

Analysis of PDEs · Mathematics 2009-11-06 Stathis Filippas , Achilles Tertikas , Jesper Tidblom

In this paper we focus our attention on an embedding result for a weighted Sobolev space that involves as weight the distance function from the boundary taken with respect to a general smooth gauge function $F$. Starting from this type of…

Functional Analysis · Mathematics 2019-11-28 Giuseppina di Blasio , Giovanni Pisante , Georgeos Psaradakis

Contains a further development of the V.G. Maz'ya concept of polynomial capacities.A different different approach is given together with new results. The primary application is for Hardy inequalities. This is treated in a later report. Here…

Analysis of PDEs · Mathematics 2007-05-23 Andreas Wannebo

We prove a characterization of Hardy's inequality in Sobolev-Slobodecki\u{\i} spaces in terms of positive local weak supersolutions of the relevant Euler-Lagrange equation. This extends previous results by Ancona and Kinnunen & Korte for…

Analysis of PDEs · Mathematics 2022-09-08 Francesca Bianchi , Lorenzo Brasco , Firoj Sk , Anna Chiara Zagati

We characterize a weighted norm inequality which corresponds to the embedding of a class of absolutely continuous functions into the fractional order Sobolev space. The auxiliary result of the paper is of independent interest. It comprises…

Functional Analysis · Mathematics 2017-09-01 Maria G. Nasyrova , Elena P. Ushakova

We define Euler-Hilbert-Sobolev spaces and obtain embedding results on homogeneous groups using Euler operators, which are homogeneous differential operators of order zero. Sharp remainder terms of $L^{p}$ and weighted Sobolev type and…

Functional Analysis · Mathematics 2018-01-24 Michael Ruzhansky , Durvudkhan Suragan , Nurgissa Yessirkegenov

In this paper we establish several Hardy and Hardy-Sobolev type inequalities with homogeneous weights on the first orthant $\displaystyle \mathbb{R}_{*}^n:=\{(x_1, \ldots, x_n):x_1>0, \ldots, x_n>0 \}$. We then use some of them to produce…

Analysis of PDEs · Mathematics 2021-08-11 I. Kömbe , S. Bakım , R. Tellioğlu Balekoğlu

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 study the Hardy identities and inequalities on Cartan-Hadamard manifolds using the notion of a Bessel pair. These Hardy identities offer significantly more information on the existence/nonexistence of the extremal functions of the Hardy…

Analysis of PDEs · Mathematics 2021-03-25 J. Flynn , N. Lam , G. Lu , S. Mazumdar

We establish a sharp Adams-type inequality invoking a Hardy inequality for any even dimension. This leads to a non compact Sobolev embedding in some Orlicz space. We also give a description of the lack of compactness of this embedding in…

Analysis of PDEs · Mathematics 2015-02-19 Mohamed Khalil Zghal

In this article we establish new improvements of the optimal Hardy inequality in the half space. We first add all possible linear combinations of Hardy type terms thus revealing the structure of this type of inequalities and obtaining best…

Analysis of PDEs · Mathematics 2008-02-08 Stathis Filippas , Achilles Tertikas , Jesper Tidblom

We prove logarithmic Sobolev inequalities for semi-direct product operators (see definition in Section 1). We apply our main results to examples of operators and provide some applications to ultracontractive bounds of semigroups. Hardy's…

Analysis of PDEs · Mathematics 2014-12-05 Piero D'Ancona , Patrick Maheux , Vittoria Pierfelice

We prove a critical Hardy inequality on the half-space by using the harmonic transplantation. Also we give an improvement of the subcritical Hardy inequality on the half-space, which converges to the critical Hardy inequality. Sobolev type…

Analysis of PDEs · Mathematics 2022-01-07 Megumi Sano , Futoshi Takahashi

We study Dirichlet forms defined by nonintegrable L\'evy kernels whose singularity at the origin can be weaker than that of any fractional Laplacian. We show some properties of the associated Sobolev type spaces in a bounded domain, such as…

Analysis of PDEs · Mathematics 2017-10-12 Ernesto Correa , Arturo de Pablo

We determine the sharp constant in the Hardy inequality for fractional Sobolev spaces. To do so, we develop a non-linear and non-local version of the ground state representation, which even yields a remainder term. From the sharp Hardy…

Analysis of PDEs · Mathematics 2008-11-15 Rupert L. Frank , Robert Seiringer

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…

Analysis of PDEs · Mathematics 2023-06-16 Thomas Hoffmann-Ostenhof , Ari Laptev , Il'ya Shcherbakov
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