Results 41 to 50 of about 1,353 (146)

Perturbation Method for Particle-like Solutions of the Einstein-Dirac-Maxwell Equations [PDF]

open access: yes, 2009
The aim of this Note is to prove by a perturbation method the existence of solutions of the coupled Einstein-Dirac-Maxwell equations for a static, spherically symmetric system of two fermions in a singlet spinor state and with the electromagnetic ...
Finster   +6 more
core   +5 more sources

Existence of groundstates for a class of nonlinear Choquard equations [PDF]

open access: yes, 2012
We prove the existence of a nontrivial solution (u \in H^1 (\R^N)) to the nonlinear Choquard equation [- \Delta u + u = \bigl(I_\alpha \ast F (u)\bigr) F' (u) \quad \text{in (\R^N),}] where (I_\alpha) is a Riesz potential, under almost necessary ...
Jean, Van Schaftingen, Vitaly Moroz
core   +1 more source

Singularly perturbed critical Choquard equations

open access: yesJournal of Differential Equations, 2017
In this paper we study the semiclassical limit for the singularly perturbed Choquard equation $$ -\vr^2 u +V(x)u =\vr^{ -3}\Big(\int_{\R^3} \frac{Q(y)G(u(y))}{|x-y|^ }dy\Big)Q(x)g(u) \quad \mbox{in $\R^3$}, $$ where ...
Alves, Claudianor   +3 more
openaire   +4 more sources

Choquard equations under confining external potentials [PDF]

open access: yesNonlinear Differential Equations and Applications NoDEA, 2016
We consider the nonlinear Choquard equation $$ - u+V u=(I_ \ast \vert u\vert ^p)\vert u\vert ^{p-2}u \qquad \text{ in } \mathbb{R}^N $$ where $N\geq 1$, $I_ $ is the Riesz potential integral operator of order $ \in (0, N)$ and $p > 1$. If the potential $ V \in C (\mathbb{R}^N; [0,+\infty)) $ satisfies the confining condition $$ \liminf\limits_ ...
Jean Van Schaftingen, Jiankang Xia
openaire   +3 more sources

Infinitely many non-radial solutions for a Choquard equation

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we consider the non-linear Choquard equation −Δu+V(∣x∣)u=∫R3∣u(y)∣2∣x−y∣dyuinR3,-\Delta u+V\left(| x| )u=\left(\mathop{\int }\limits_{{{\mathbb{R}}}^{3}}\frac{| u(y){| }^{2}}{| x-y| }{\rm{d}}y\right)u\hspace{1.0em}\hspace{0.1em}\text{in}\
Gao Fashun, Yang Minbo
doaj   +1 more source

Orbital stability of generalized Choquard equation [PDF]

open access: yesBoundary Value Problems, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Xing, Sun, Xiaomei, Lv, Wenhua
openaire   +2 more sources

Saddle solutions for the fractional Choquard equation [PDF]

open access: yesZeitschrift für angewandte Mathematik und Physik, 2022
We study the saddle solutions for the fractional Choquard equation \begin{align*} (- )^{s}u+ u=(K_ \ast|u|^{p})|u|^{p-2}u, \quad x\in \mathbb{R}^N \end{align*} where $s\in(0,1)$, $N\geq 3$ and $K_ $ is the Riesz potential with order $ \in (0,N)$. For every Coxeter group $G$ with rank $1\leq k\leq N$ and $p\in[2,\frac{N+ }{N-2s})$, we construct a ...
Ying-Xin Cui, Jiankang Xia
openaire   +3 more sources

Critical growth elliptic problems involving Hardy-Littlewood-Sobolev critical exponent in non-contractible domains

open access: yesAdvances in Nonlinear Analysis, 2019
The paper is concerned with the existence and multiplicity of positive solutions of the nonhomogeneous Choquard equation over an annular type bounded domain.
Goel Divya, Sreenadh Konijeti
doaj   +1 more source

Existence of Solutions for Choquard Type Elliptic Problems with Doubly Critical Nonlinearities

open access: yesAdvanced Nonlinear Studies, 2021
In this article, we first study the existence of nontrivial solutions to the nonlocal elliptic problems in ℝN{\mathbb{R}^{N}} involving fractional Laplacians and the Hardy–Sobolev–Maz’ya potential.
Shen Yansheng
doaj   +1 more source

Multiple solutions for a quasilinear Choquard equation with critical nonlinearity

open access: yesOpen Mathematics, 2021
In the present work, we are concerned with the multiple solutions for quasilinear Choquard equation with critical nonlinearity in RN{{\mathbb{R}}}^{N}.
Li Rui, Song Yueqiang
doaj   +1 more source

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