Results 91 to 100 of about 160 (129)

Existence of solutions for a class of quasilinear Schrödinger equations with Choquard-type nonlinearity

open access: yesAdvances in Nonlinear Analysis
For the following quasilinear Choquard-type equation: −Δu−Δ(u2)u+V(x)u=(Iμ*∣u∣p)∣u∣p−2u,x∈RN,-\Delta u-\Delta \left({u}^{2})u+V\left(x)u=\left({I}_{\mu }* {| u| }^{p}){| u| }^{p-2}u,\hspace{1em}x\in {{\mathbb{R}}}^{N}, where N≥3 ...
Shen Zifei, Yang Ning
doaj   +1 more source

On the existence of a priori bounds for positive solutions of elliptic problems, I

open access: yesRevista Integración, 2019
This paper gives a survey over the existence of uniform L∞ a priori bounds for positive solutions of subcritical elliptic equations (P)p     -\Delta_p u =f(u),  in  \Omega,    u = 0, on \partial\Omega widening the known ranges of subcritical ...
Rosa Pardo
doaj  

Multiple positive solutions for superlinear Kirchhoff type problems on R^N

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we study the multiplicity of positive solutions for a class of Kirchhoff type problems depending on two real functions and a nonnegative parameter on an unbounded domain.
Yu Duan, Chun-Lei Tang
doaj  

Ground state solutions for nonlinear fractional Schrodinger equations involving critical growth

open access: yesElectronic Journal of Differential Equations, 2017
This article concerns the ground state solutions of nonlinear fractional Schrodinger equations involving critical growth. We obtain the existence of ground state solutions when the potential is not a constant and not radial.
Hua Jin, Wenbin Liu
doaj  

Pohozaev-like identity for the regional fractional laplacian

open access: yes
We establish a new integration by parts formula for the regional fractional laplacian $(-Δ)^s_Ω$ in bounded open sets of class $C^2$. As a direct application, we prove that weak solutions to the corresponding Dirichlet problem satisfy a Pohozaev-like identity with an explicit remainder term.
openaire   +2 more sources

Infinitely many radial solutions for a sub-super critical Dirichlet boundary value problem in a ball

open access: yesElectronic Journal of Differential Equations, 2007
We prove the existence of infinitely many solutions to a semilinear Dirichlet boundary value problem in a ball for a nonlinearity $g(u)$ that grows subcritically for $u$ positive and supercritically for $u$ negative.
Chee Meng Tan, John Kwon, Alfonso Castro
doaj  

Nonexistence results for semilinear systems in unbounded domains

open access: yesElectronic Journal of Differential Equations, 2009
This paper concerns the non-existence of nontrivial solutions for the semi-linear system of gradient type $$displaylines{ lambda frac{partial ^{2}u_{k}}{partial t^{2}} -sum_{i=1}^n frac{partial }{partial x_{i}}(p_{i}(x)frac{ partial u_{k}}{partial x_{i}}
Abdelkrim Moussaoui, Brahim Khodja
doaj  

The Stress-Energy Tensor and Pohozaev's Identity for Systems

open access: yes, 2012
Utilizing stress-energy tensors which allow for a divergence-free formulation, we establish Pohozaev's identity for certain classes of quasilinear systems with variational structure. © 2012 Wuhan Institute of Physics and Mathematics.
Alikakos, N.D., Faliagas, A.C.
openaire   +1 more source

Regular solutions to elliptic equations

open access: yesElectronic Journal of Differential Equations, 2023
Alfonso Castro, Jon Jacobsen
doaj  

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