Results 91 to 100 of about 5,037 (196)

The sharp constant in the Hardy-Sobolev-Maz'ya inequality in the three dimensional upper half-space

open access: yes, 2008
It is shown that the sharp constant in the Hardy-Sobolev-Maz'ya inequality on the upper half space H-3 subset of R-3 is given by the Sobolev constant.
Frank, Rupert L.,   +2 more
core   +1 more source

Ground state solution for Schrödinger-Choquard equation: doubly critical case

open access: yesBoundary Value Problems
In this paper, we investigate the following Schrödinger-Choquard equation: − Δ u + u = ( I α ∗ | u | 2 α ♯ ) | u | 2 α ♯ − 2 u + | u | q − 2 u + | u | r − 2 u , x ∈ R N , $$ -\Delta u+u = (I_{\alpha }*|u|^{2_{\alpha }^{\sharp }})|u|^{2_{\alpha }^{ \sharp
Yusheng Shen, Zhiwei Zou, You Gao
doaj   +1 more source

The sharp constant in the Hardy-Sobolev-Maz’ya inequality in the three dimensional upper half-space [PDF]

open access: yes, 2007
It is shown that the sharp constant in the Hardy-Sobolev-Maz’ya inequality on the upper half space H^3 ⊂ R^3 is given by the Sobolev constant. This is achieved by a duality argument relating the problem to a Hardy-Littlewood-Sobolev type inequality whose
Benguria, Rafael D.   +2 more
core  

Regularity lifting result for an integral system involving Riesz potentials

open access: yesElectronic Journal of Differential Equations, 2017
In this article, we study the integral system involving the Riesz potentials $$\displaylines{ u(x)=\sqrt{p} \int_{\mathbb{R}^n}\frac{u^{p-1}(y)v(y)dy}{|x-y|^{n-\alpha}}, \quad u>0 \text{ in } \mathbb{R}^n,\cr v(x)=\sqrt{p} \int_{\mathbb{R}^n}\frac{u ...
Yayun Li, Deyun Xu
doaj  

Existence of extremals for stability of nonlocal Sobolev inequality

open access: yesAdvanced Nonlinear Studies
This paper is devoted to quantitative refinements of the nonlocal Sobolev inequality with explicit determination of stability constants. In the single-bubble regime, we rigorously prove that the optimal stability constantcHLS=infu∈D1,2(RN)\M‖∇u‖L2(RN)2 ...
Zhang Qian
doaj   +1 more source

Hardy-Sobolev Inequalities [PDF]

open access: yes, 2022
Στην παρούσα εργασία θα μελετηθούν δύο ανισότητες Hardy-Sobolev, μια που αφορά απόσταση από σημείο και μια που αφορά απόσταση από σύνορο. Για την ανισότητα Hardy-Sobolev που αφόρα απόσταση απο σημείο βρίσκουμε βέλτιστη σταθερά.
Akrivou Eleni-Ioanna   +1 more
core  

Hardy-Littlewood-Sobolev inequality in total Morrey spaces

open access: yesPositivity
We study some necessary and sufficient conditions for the boundedness of the Riesz potential operator Iα and its commutator on the total Morrey spaces Lp,λ,μ(Rn). We characterize the strong and weak Spanne type and Adams type boundedness of Iα on Lp,λ,μ(Rn), respectively.
openaire   +2 more sources

Hardy-Littlewood-Sobolev inequality on product spaces

open access: yes, 2018
We study a family of fractional integral operator defined on an homogeneous space with a "rectangle doubling" measure. As a result, we give an extension of the classical Hardy-Littlewood-Sobolev theorem to a multi-parameter setting.
openaire   +2 more sources

Spherical reflection positivity and the Hardy-Littlewood-Sobolev inequality

open access: yes, 2010
We introduce the concept of spherical (as distinguished from planar) reflection positivity and use it to obtain a new proof of the sharp constants in certain cases of the HLS and the logarithmic HLS inequality. Our proofs relies on an extension of a work by Li and Zhu which characterizes the minimizing functions of the type $(1+|x|^2)^{-p}$.
Frank, Rupert L., Lieb, Elliott H.
openaire   +3 more sources

Approximation theory for weighted Sobolev spaces on curves [PDF]

open access: yes, 2001
17 pages, no figures.-- MSC2000 codes: 41A10, 46E35, 46G10.MR#: MR1882649 (2003c:42002)In this paper we present a definition of weighted Sobolev spaces on curves and find general conditions under which the spaces are complete.
Pestana Galván, Domingo   +6 more
core  

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