Results 31 to 40 of about 648,405 (147)

Sharp Hardy–Littlewood–Sobolev inequalities on the octonionic Heisenberg group [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2016
The Hardy-Littlewood-Sobolev inequality for the conjugate exponent on a group of Heisenberg type has the form \[ \left|\iint_{G\times G}\frac{\overline{f(u)}g(v)}{|u^{-1}v|^\lambda}dudv\right|\lesssim\|f\|_p\|g\|_p, \] where ...
Christ, Michael, Liu, Heping, Zhang, An
openaire   +1 more source

Extremal problems of Hardy-Littlewood-Sobolev inequalities on compact Riemannian manifolds [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2021
This paper studies the existence of extremal problems for the Hardy-Littlewood-Sobolev inequalities on compact manifolds without boundary via Concentration-Compactness principle.
Zhang, Shutao, Han, Yazhou
openaire   +3 more sources

Choquard-type equations with Hardy–Littlewood–Sobolev upper-critical growth

open access: yesAdvances in Nonlinear Analysis, 2018
We are concerned with the existence of ground states and qualitative properties of solutions for a class of nonlocal Schrödinger equations. We consider the case in which the nonlinearity exhibits critical growth in the sense of the Hardy–Littlewood ...
Cassani Daniele, Zhang Jianjun
doaj   +1 more source

Existence of positive solutions to negative power nonlinear integral equations with weights

open access: yesBoundary Value Problems, 2020
This paper is devoted to the existence and non-existence of positive solutions to the following negative power nonlinear integral equation related to the sharp reversed Hardy–Littlewood–Sobolev inequality: f q − 1 ( x ) = ∫ Ω K ( x ) f ( y ) K ( y ) | x −
Hang Chen, Qianqiao Guo, Qian Wang
doaj   +1 more source

On the critical Choquard-Kirchhoff problem on the Heisenberg group

open access: yesAdvances in Nonlinear Analysis, 2022
In this paper, we deal with the following critical Choquard-Kirchhoff problem on the Heisenberg group of the form: M(‖u‖2)(−ΔHu+V(ξ)u)=∫HN∣u(η)∣Qλ∗∣η−1ξ∣λdη∣u∣Qλ∗−2u+μf(ξ,u),M\left(\Vert u{\Vert }^{2})\left(-{\Delta }_{{\mathbb{H}}}u\left+V\left(\xi )u)=\
Sun Xueqi, Song Yueqiang, Liang Sihua
doaj   +1 more source

Biharmonic system with Hartree-type critical nonlinearity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this article, we investigate the multiplicity results of the following biharmonic Choquard system involving critical nonlinearities with sign-changing weight function: \begin{align*} \begin{cases} \Delta^{2}u = \lambda F(x) |u|^{r-2}u+ H(x)\left ...
Anu Rani, Sarika Goyal
doaj   +1 more source

Extremals in Hardy-Littlewood-Sobolev inequalities for stable processes

open access: yesJournal of Mathematical Analysis and Applications, 2022
We prove the existence of an extremal function in the Hardy-Littlewood-Sobolev inequality for the energy associated to an stable operator. To this aim we obtain a concentration-compactness principle for stable processes in $\mathbb{R}^N$.
de Pablo, Arturo   +2 more
openaire   +4 more sources

Symmetry and Nonexistence of Positive Solutions for Weighted HLS System of Integral Equations on a Half Space

open access: yesAbstract and Applied Analysis, 2014
We consider system of integral equations related to the weighted Hardy-Littlewood-Sobolev (HLS) inequality in a half space. By the Pohozaev type identity in integral form, we present a Liouville type theorem when the system is in both supercritical and ...
Linfen Cao, Zhaohui Dai
doaj   +1 more source

Groundstates for Choquard type equations with weighted potentials and Hardy–Littlewood–Sobolev lower critical exponent

open access: yesAdvances in Nonlinear Analysis, 2021
We are concerned with a class of Choquard type equations with weighted potentials and Hardy–Littlewood–Sobolev lower critical ...
Zhou Shuai, Liu Zhisu, Zhang Jianjun
doaj   +1 more source

Reverse Hardy-Littlewood-Sobolev inequalities

open access: yes, 2018
This paper is devoted to a new family of reverse Hardy-Littlewood-Sobolev inequalities which involve a power law kernel with positive exponent. We investigate the range of the admissible parameters and characterize the optimal functions. A striking open question is the possibility of concentration which is analyzed and related with nonlinear diffusion ...
Dolbeault, Jean   +2 more
openaire   +2 more sources

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