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Related papers: Fractional Hardy inequalities and capacity density

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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…

Analysis of PDEs · Mathematics 2022-04-05 Rupert L. Frank , Ari Laptev , Timo Weidl

We study the existence/nonexistence and qualitative properties of the positive solutions to the problem \begin{align*} (-\Delta)^s u -\theta\frac{u}{|x|^{2s}}&=u^p - u^q \quad\text{in }\,\, \mathbb{R}^N,\quad u > 0 \quad\text{in }\,\,…

Analysis of PDEs · Mathematics 2021-10-28 Mousomi Bhakta , Debdip Ganguly , Luigi Montoro

In this paper, a new two-dimensional Hardy type inequality is given in terms of pseudo-analysis dealing with set-valued functions. The first one is given for a pseudo-integral of set-valued function where pseudo-addition and…

Functional Analysis · Mathematics 2022-06-29 Bayaz Daraby , Mortaza Tahmourasi , Asghar Rahimi

We extend the work of Dyda and Kijaczko by establishing the corresponding weighted fractional Hardy inequalities with singularities on any flat submanifolds. While they derived weighted fractional Hardy inequalities with singularities at a…

Analysis of PDEs · Mathematics 2026-02-11 Vivek Sahu

In this paper, we consider a fractional p-Laplacian system of equations in the entire space RN with doubly critical singular nonlinearities involving a local critical Sobolev term together with a nonlocal Choquard critical term; the problem…

Analysis of PDEs · Mathematics 2024-12-16 Ronaldo B. Assunção , Olímpio H. Miyagaki , Rafaella F. S. Siqueira

We characterize the fractional Sobolev inequality with fractional isocapacitary and isoperimetric inequalities. We give a sufficient condition and examples so that the fractional capacity of the closure of an open set is bounded above by…

Classical Analysis and ODEs · Mathematics 2013-12-12 Ritva Hurri Syrjänen , Antti V. Vähäkangas

Given a space of homogeneous type we give sufficient conditions on a variable exponent {p(.)} so that the fractional maximal operator {M_{\eta}} maps {L^{p(.)}(X)} to {L^{q(.)}(X)}, where {1/p(.) - 1/q(.) = {\eta}}. In the endpoint case we…

Classical Analysis and ODEs · Mathematics 2015-12-01 David Cruz-Uribe , Parantap Shukla

We give sharp two-sided estimates of the semigroup generated by the fractional Laplacian plus the Hardy potential on $\mathbb{R}^d$, including the case of the critical constant. We use Davies' method back-to-back with a new method of…

Analysis of PDEs · Mathematics 2017-11-06 Krzysztof Bogdan , Tomasz Grzywny , Tomasz Jakubowski , Dominika Pilarczyk

In this work we establish the following fractional Hardy's inequality $$C\int_{\mathbb{H}^n_+}\frac{|f(\xi)|^p}{x_1^{sp+\alpha}}d\xi\leq \int_{\mathbb{H}^n}\int_{\mathbb{H}^n}\frac{|f(\xi)-f(\xi')|^p}{d({\xi}^{-1}\circ…

Analysis of PDEs · Mathematics 2025-04-10 Haripada Roy

We prove Gagliardo-Nirenberg interpolation inequalities estimating the Sobolev semi-norm in terms of the bounded mean oscillation semi-norm and a Sobolev semi-norm, with some of the Sobolev semi-norms having fractional order.

Classical Analysis and ODEs · Mathematics 2023-09-11 Jean Van Schaftingen

In this paper we consider a new kind of inequality related to fractional integration, motivated by Gressman's paper. Based on it we investigate its multilinear analogue inequalities. Combining with the Gressman's work on multilinear…

Functional Analysis · Mathematics 2016-06-17 Ting Chen

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

In this article, we introduce the fractional maximal operator on the Hyperbolic space, a non-doubling measure space, and study the weighted boundedness. Motivated in the weighted boundedness of Hardy-Littlewood maximal studied by Antezana…

Classical Analysis and ODEs · Mathematics 2024-01-01 Gonzalo Ibañez-Firnkorn , Emanuel Ramadori

We investigate the existence of positive solutions to fractional equations presenting a double criticality: a multi-polar Hardy-type potential and a Sobolev critical nonlinearity. The nonlocal nature of the operator and the absence of…

Analysis of PDEs · Mathematics 2026-05-01 Edoardo Mainini , Debangana Mukherjee , Roberto Ognibene

We consider a new fractional impulsive differential hemivariational inequality which captures the required characteristics of both the hemivariational inequality and the fractional impulsive differential equation within the same framework.…

Optimization and Control · Mathematics 2020-11-17 Yun-hua Weng , Tao Chen , Nan-jing Huang , Donal O'Regan

We prove a Hardy inequality on convex sets, for fractional Sobolev-Slobodecki\u{\i} spaces of order $(s,p)$. The proof is based on the fact that in a convex set the distance from the boundary is a superharmonic function, in a suitable…

Analysis of PDEs · Mathematics 2018-06-12 Lorenzo Brasco , Eleonora Cinti

In the setting of spaces of homogeneous type, we study some Hardy type inequalities, which notably appeared in the proofs of local T(b) theorems as in [AR]. We give some suffi cient conditions ensuring their validity, related to the…

Classical Analysis and ODEs · Mathematics 2013-04-12 Eddy Routin

We establish both sufficient and necessary conditions for weighted Hardy inequalities in metric spaces in terms of Assouad (co)dimensions. Our sufficient conditions in the case where the complement is thin are new even in Euclidean spaces,…

Functional Analysis · Mathematics 2017-04-14 Juha Lehrbäck

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…

Spectral Theory · Mathematics 2022-06-23 Borbala Gerhat , David Krejcirik , Frantisek Stampach

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