Results 11 to 20 of about 648,405 (147)

Affine Hardy–Littlewood–Sobolev inequalities

open access: yesJournal of the European Mathematical Society
Sharp affine Hardy–Littlewood–Sobolev inequalities for functions on \mathbb{R}^{n} are established, which are significantly stronger than (and directly imply) the sharp Hardy–Littlewood–Sobolev inequalities by Lieb and by Beckner, Dou, and Zhu.
Julián Eduardo Haddad, Monika Ludwig
core   +13 more sources

Sobolev and Hardy–Littlewood–Sobolev inequalities

open access: yesJournal of Differential Equations, 2014
This paper is devoted to improvements of Sobolev and Onofri inequalities. The additional terms involve the dual counterparts, i.e. Hardy-Littlewood-Sobolev type inequalities. The Onofri inequality is achieved as a limit case of Sobolev type inequalities.
Jankowiak, Gaspard, Dolbeault, Jean
core   +9 more sources

Hardy-Littlewood-Sobolev inequalities via fast diffusion flows [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
We give a simple proof of the λ  =  d  - 2 cases of the sharp Hardy-Littlewood-Sobolev inequality for d ≥3, and the sharp Logarithmic Hardy-Littlewood-Sobolev inequality for d
Carlen, EA, Carrillo, JA, Loss, M
openaire   +7 more sources

Sobolev and Hardy-Littlewood-Sobolev inequalities: duality and fast diffusion [PDF]

open access: yesMathematical Research Letters, 2011
In the euclidean space of dimension d ≥ 3, Sobolev and Hardy-Littlewood-Sobolev inequalities can be related by duality. We investigate how to relate these inequalities using the flow of a fast diffusion equation. Up to a term which is needed for homogeneity reasons, the difference of the two terms in Sobolev's inequality can be seen as the derivative ...
Dolbeault, Jean
core   +7 more sources

Fractional Sobolev and Hardy-Littlewood-Sobolev inequalities

open access: yes, 2014
This work focuses on an improved fractional Sobolev inequality with a remainder term involving the Hardy-Littlewood-Sobolev inequality which has been proved recently. By extending a recent result on the standard Laplacian to the fractional case, we offer a new, simpler proof and provide new estimates on the best constant involved.
Jankowiak, Gaspard, Nguyen, Van Hoang
core   +5 more sources

A New, Rearrangement-free Proof of the Sharp Hardy–Littlewood–Sobolev Inequality [PDF]

open access: yes, 2011
We show that the sharp constant in the Hardy-Littlewood-Sobolev inequality can be derived using the method that we employed earlier for a similar inequality on the Heisenberg group. The merit of this proof is that it does not rely on rearrangement inequalities; it is the first one to do so for the whole parameter range.
Frank, Rupert L., Lieb, Elliott H.
openaire   +5 more sources

The HELP inequality on trees [PDF]

open access: yes, 2008
We establish analogues of Hardy and Littlewood's integro-differential equation for Schrödinger-type operators on metric and discrete trees, based on a generalised strong limit-point property of the graph ...
Brown, B. Malcolm   +2 more
core   +5 more sources

Ground states of coupled critical Choquard equations with weighted potentials [PDF]

open access: yesOpuscula Mathematica, 2022
In this paper, we are concerned with the following coupled Choquard type system with weighted potentials \[\begin{cases} -\Delta u+V_{1}(x)u=\mu_{1}(I_{\alpha}\!\ast\![Q(x)|u|^{\frac{N+\alpha}{N}}])Q(x)|u|^{\frac{\alpha}{N}-1}u+\beta(I_{\alpha}\!\ast\![Q(
Gaili Zhu   +3 more
doaj   +1 more source

Inversion positivity and the sharp Hardy–Littlewood–Sobolev inequality [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2009
We give a new proof of certain cases of the sharp HLS inequality. Instead of symmetric decreasing rearrangement it uses the reflection positivity of inversions in spheres. In doing this we extend a characterization of the minimizing functions due to Li and Zhu.
Frank, Rupert L., Lieb, Elliott H.
openaire   +3 more sources

Hardy-Littlewood-Sobolev inequality for $p=1$

open access: yesSbornik: Mathematics, 2022
Let $\mathcal{W}$ be a closed dilation and translation invariant subspace of the space of $\mathbb{R}^\ell$-valued Schwartz distributions in $d$ variables. We show that if the space $\mathcal{W}$ does not contain distributions of the type $a\otimes \delta_0$, $\delta_0$ being the Dirac delta, then the inequality $\|\operatorname{I}_\alpha [f]\|_{L_{d ...
openaire   +2 more sources

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