Results 31 to 40 of about 8,199,777 (182)

Positive solutions of a boundary value problem with integral boundary conditions [PDF]

open access: yes, 2011
We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters μ*, λ so ...
Webb, J.
core   +5 more sources

Radial and non-radial positive solutions to a system with critical growth on Rᴺ [PDF]

open access: yes, 2017
In this talk, I will look at positive entire solutions to the following system involving the critical Sobolev exponent: -Δuᵢ = ∑ⱼ aᵢⱼ uⱼ^{(N+2)/(N-2)} in Rᴺ, uᵢ > 0 in Rᴺ, uᵢ ∈ D¹²(Rᴺ), where i=1,...,k and N ≥ 3.
Troestler, Christophe
core   +1 more source

Positive radial solutions of p-Laplace equations on exterior domains

open access: yesAIMS Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yongxiang Li, Mei Wei
openaire   +2 more sources

Positive radial solutions for quasilinear biharmonic equations

open access: yesComputers & Mathematics with Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Multiple Non-radial Solutions for Coupled Schr\"{o}dinger Equations [PDF]

open access: yes, 2023
The paper deals with the existence of non-radial solutions for an $N$-coupled nonlinear elliptic system. In the repulsive regime with some structure conditions on the coupling and for each symmetric subspace of rotation symmetry, we prove the existence ...
Huang, Xiaopeng   +2 more
core  

Existence of Positive Radial Solutions for Elliptic Systems

open access: yesJournal of Mathematical Analysis and Applications, 1996
This article is devoted to the study of the equation \(\partial\theta/\partial t=\text{div}({\mathcal R}\nabla p_t)+f\), where \(\theta(t,x)\) is the saturation, \(\mathcal R\) is the matrix \((a_{ij})=(\rho/\mu)\kappa_{ij}\), where the \(n\times n\)-matrix \((\kappa_{ij}(x))\) describes the permeability of the medium, \(\mu\) is the viscosity of the ...
openaire   +2 more sources

Positive radial solutions for a noncooperative resonant nuclear reactor model with sign-changing nonlinearities

open access: yesJournal of Inequalities and Applications, 2021
This paper is concerned with the existence of positive radial solutions of the following resonant elliptic system: { − Δ u = u v + f ( | x | , u ) , 0 < R 1 < | x | < R 2 , x ∈ R N , − Δ v = c g ( u ) − d v , 0 < R 1 < | x | < R 2 , x ∈ R N , ∂ u ∂ n = 0
Ruipeng Chen   +3 more
doaj   +1 more source

Non-radial normalized solutions for a nonlinear Schrodinger equation

open access: yesElectronic Journal of Differential Equations, 2023
This article concerns the existence of multiple non-radial positive solutions of the L2-constrained problem $$\displaylines{-\Delta{u}-Q(\varepsilon x)|u|^{p-2}u=\lambda{u},\quad \text{in }\mathbb{R}^N, \\ \int_{\mathbb{R}^N}|u|^2dx=1,}$$ where \(Q(x)\)
Zhi-Juan Tong   +2 more
doaj   +1 more source

Infinitely many positive solutions for a Schrödinger-Poisson system

open access: yes, 2011
We are interested in the existence of infinitely many positive non-radial solutions of a Schrödinger-Poisson system with a positive radial bounded external potential decaying at infinity. © 2011 Elsevier Ltd.
Vaira G., D'Avenia P., Pomponio A.
core   +2 more sources

Nonexistence of positive radial solutions for a problem with singular potential

open access: yesAdvances in Nonlinear Analysis, 2014
This article completes the picture in the study of positive radial solutions in the function space 𝒟1,2(ℝN)∩L2(ℝN,|x|-αdx)∩Lp(ℝN)${{\mathcal {D}^{1,2}({\mathbb {R}^N}) \cap L^2({{\mathbb {R}^N}, | x |^{-\alpha } dx})\cap L^p({\mathbb {R}^N})}}$ for the ...
Catrina Florin
doaj   +1 more source

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