Results 11 to 20 of about 214,926 (206)

Infinitely Many Periodic Solutions for Variable Exponent Systems

open access: yesJournal of Inequalities and Applications, 2009
We mainly consider the system in , in , where are periodic functions, and is called -Laplacian. We give the existence of infinitely many periodic solutions under some conditions.
Lu Mingxin, Guo Xiaoli, Zhang Qihu
doaj   +4 more sources

Infinitely many solutions for nonhomogeneous Choquard equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
In this paper, we study the following nonhomogeneous Choquard equation \begin{equation*} \begin{split} -\Delta u+V(x)u=(I_\alpha*|u|^p)|u|^{p-2}u+f(x),\qquad x\in \mathbb{R}^N, \end{split} \end{equation*} where $N\geq3,\alpha\in(0,N),p\in \big[\frac{N ...
Tao Wang, Hui Guo
doaj   +2 more sources

Infinitely many geometrically distinct solutions for periodic Schrödinger–Poisson systems [PDF]

open access: yesBoundary Value Problems, 2019
This paper is dedicated to studying the following Schrödinger–Poisson system: {−△u+V(x)u+K(x)ϕ(x)u=f(x,u),x∈R3,−△ϕ=K(x)u2,x∈R3, $$ \textstyle\begin{cases} -\triangle u+V(x)u+K(x)\phi (x)u=f(x, u), \quad x\in {\mathbb {R}}^{3}, \\ -\triangle \phi =K(x)u ...
Jing Chen, Ning Zhang
doaj   +10 more sources

Infinitely Many Solutions of Strongly Indefinite Semilinear Elliptic Systems [PDF]

open access: yesBoundary Value Problems, 2009
We proved a multiplicity result for strongly indefinite semilinear elliptic systems −Δu+u=±1/(1+|x|a)|v|p−2v in ℝN, −Δv+v=±1/(1+|x|b)|u|q−2u in ℝN where a and b are positive numbers ...
Kuan-Ju Chen
doaj   +3 more sources

Infinitely Many Solutions for a Robin Boundary Value Problem [PDF]

open access: yesInternational Journal of Differential Equations, 2010
By combining the embedding arguments and the variational methods, we obtain infinitely many solutions for a class of superlinear elliptic problems with the Robin boundary value under weaker conditions.
Aixia Qian, Chong Li
doaj   +4 more sources

Infinitely many solutions at a resonance

open access: yesElectronic Journal of Differential Equations, 2000
We use bifurcation theory to show the existence of infinitely many solutions at the first eigenvalue for a class of Dirichlet problems in one dimension.
Philip Korman, Yi Li
doaj   +2 more sources

Infinitely many positive solutions of nonlinear Schrödinger equations [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2021
AbstractThe paper deals with the equation $$-\Delta u+a(x) u =|u|^{p-1}u $$ - Δ u + a ( x ) u
Molle R., Passaseo D.
openaire   +6 more sources

Infinitely many solutions for Schrödinger–Newton equations

open access: yesCommunications in Contemporary Mathematics, 2023
We prove the existence of infinitely many non-radial positive solutions for the Schrödinger–Newton system [Formula: see text] provided that [Formula: see text] has the following behavior at infinity: [Formula: see text] where [Formula: see text] and [Formula: see text] are some positive constants.
Hu Y., Jevnikar A., Xie W.
openaire   +2 more sources

A variational approach for mixed elliptic problems involving the p-Laplacian with two parameters

open access: yesBoundary Value Problems, 2022
By exploiting an abstract critical-point result for differentiable and parametric functionals, we show the existence of infinitely many weak solutions for nonlinear elliptic equations with nonhomogeneous boundary conditions. More accurately, we determine
Armin Hadjian, Juan J. Nieto
doaj   +1 more source

Infinitely many solutions of degenerate quasilinear Schrödinger equation with general potentials

open access: yesBoundary Value Problems, 2021
In this paper, we study the following quasilinear Schrödinger equation: − div ( a ( x , ∇ u ) ) + V ( x ) | x | − α p ∗ | u | p − 2 u = K ( x ) | x | − α p ∗ f ( x , u ) in  R N , $$ -\operatorname{div}\bigl(a(x,\nabla u)\bigr)+V(x) \vert x \vert ...
Yan Meng, Xianjiu Huang, Jianhua Chen
doaj   +1 more source

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