Results 61 to 70 of about 1,690 (115)

Multiple solutions for a nonhomogeneous Schr\"odinger-Maxwell system in $R^3$

open access: yes, 2014
The paper considers the following nonhomogeneous Schr\"odinger-Maxwell system -\Delta u + u+\lambda\phi (x) u =|u|^{p-1}u+g(x),\ x\in \mathbb{R}^3, -\Delta\phi = u^2, \ x\in \mathbb{R}^3, .
Ambrosetti   +22 more
core   +1 more source

Existence of solutions of elliptic boundary value problems with mixed type nonlinearities

open access: yes, 2012
We study the existence of a nontrivial solution of the following elliptic boundary value problem with mixed type nonlinearities: {−△u=f(x,u)in Ω,u=0on ∂Ω, where f(x,u)=−Ku+Wu. We consider the problem in a different case: lim|u|→∞f(x,u)/u=∞, lim|u|→0f(x,
Anmin Mao, Yan Zhu, S. Luan
semanticscholar   +1 more source

One‐sided resonance for quasilinear problems with asymmetric nonlinearities

open access: yes, 2002
Abstract and Applied Analysis, Volume 7, Issue 1, Page 53-60, 2002.
Kanishka Perera
wiley   +1 more source

Elliptic equations with one-sided critical growth

open access: yesElectronic Journal of Differential Equations, 2002
We consider elliptic equations in bounded domains $Omegasubset mathbb{R}^N $ with nonlinearities which have critical growth at $+infty$ and linear growth $lambda$ at $-infty$, with $lambda > lambda_1$, the first eigenvalue of the Laplacian. We prove that
Marta Calanchi, Bernhard Ruf
doaj  

Normalized solutions for the p-Laplacian equation with a trapping potential

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we are concerned with normalized solutions for the pp -Laplacian equation with a trapping potential and Lr{L}^{r}-supercritical growth, where r=pr=p or 2.2.
Wang Chao, Sun Juntao
doaj   +1 more source

Positive solutions for a class of singular (p, q)-equations

open access: yesAdvances in Nonlinear Analysis, 2023
We consider a nonlinear singular Dirichlet problem driven by the (p,q)\left(p,q)-Laplacian and a reaction where the singular term u−η{u}^{-\eta } is multiplied by a strictly positive Carathéodory function f(z,u)f\left(z,u).
Leonardi Salvatore   +1 more
doaj   +1 more source

A Fibering Map Approach for a Laplacian System With Sign-Changing Weight Function [PDF]

open access: yes, 2014
We prove the existence of at least two positive solutions for the Laplacian system(E?)On a bounded region by using the Nehari manifold and the fibering maps associated with the Euler functional for the ...
Kazemipoor, Seyyed Sadegh   +1 more
core  

Existence of solitary waves in dipolar quantum gases

open access: yes, 2010
We study a nonlinear Schroedinger equation arising in the mean-field description of dipolar quantum gases. Under the assumption of sufficiently strong dipolar interactions, the existence of standing waves, and hence solitons, is proved together with some
Antonelli, Paolo, Sparber, Christof
core   +1 more source

Non-degeneracy of multi-peak solutions for the Schrödinger-Poisson problem

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we consider the following Schrödinger-Poisson problem: −ε2Δu+V(y)u+Φ(y)u=∣u∣p−1u,y∈R3,−ΔΦ(y)=u2,y∈R3,\left\{\begin{array}{ll}-{\varepsilon }^{2}\Delta u+V(y)u+\Phi (y)u={| u| }^{p-1}u,& y\in {{\mathbb{R}}}^{3},\\ -\Delta \Phi (y)={u}^{2},
Chen Lin   +3 more
doaj   +1 more source

Symmetries, Hopf fibrations and supercritical elliptic problems

open access: yes, 2015
We consider the semilinear elliptic boundary value problem \[ -\Delta u=\left\vert u\right\vert ^{p-2}u\text{ in }\Omega,\text{\quad }u=0\text{ on }\partial\Omega, \] in a bounded smooth domain $\Omega$ of $\mathbb{R}^{N}$ for supercritical exponents $p>\
Clapp, Mónica, Pistoia, Angela
core   +1 more source

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