Results 121 to 130 of about 359 (156)

Asymmetric superlinear problems under strong resonance conditions

open access: yesElectronic Journal of Differential Equations, 2017
We study the existence and multiplicity of solutions of the problem $$\displaylines{ -\Delta u = -\lambda_1 u^- + g(x,u),\quad \text{in } \Omega; \cr u = 0, \quad \text{on } \partial\Omega, }$$ where $\Omega$ is a smooth bounded domain in $\mathbb{R ...
Leandro Recova, Adolfo J. Rumbos
doaj  

Systems of Generalized Quasivariational Inclusion Problems with Weak Continuity and Weak Convexity and Variants of Set-valued Ekeland’s Variational Principle

open access: yes, 2011
[[abstract]]An existence theorm of systems of generalized quasivariational inclusion problems with very weak continuity and convexity assumptions is proven.
L. J. Lin; P.H.Sach
core  

Existence and multiplicity of solutions to triharmonic problems

open access: yesElectronic Journal of Differential Equations
The authors consider the triharmonic equation $$ (-\Delta)^3u+c_1\Delta^2 u+c_2\Delta u=h(x)|u|^{p-2} u+g(x,u) $$ in $\Omega$, where $p\in(1,2)$, subject to Navier boundary conditions.
Qifan Wei, Xuemei Zhang
doaj  

Existence and multiplicity of solutions for nonhomogeneous Klein-Gordon-Maxwell equations

open access: yesElectronic Journal of Differential Equations, 2015
This article concerns the nonhomogeneous Klein-Gordon-Maxwell equation $$\displaylines{ -\Delta u+u-(2\omega +\phi)\phi u=|u|^{p-1}u +h(x), \quad\text{in }\mathbb{R}^3,\cr \Delta \phi=(\omega +\phi)u^2,\quad\text{in }\mathbb{R}^3, }$$ where ...
Liping Xu, Haibo Chen
doaj  

Existence of normalized solutions to Kirchhoff-Boussinesq equations in the subcritical and supercritical regime

open access: yesElectronic Journal of Differential Equations
In this article we study the existence of normalized solutions to the Kirchhoff-Boussinesq equation under the mass constraint $\|u\|_{2}=c$. In the $L^{2}$-subcritical regime, we apply Ekeland's variational principle and concentration compactness method ...
Chunling Tao, Lintao Liu, Kaimin Teng
doaj  

A simple proof of Ekeland and Scheinkman's result on the necessity of a transversality condition

open access: yes
Ekeland and Scheinkman (1986) prove the necessity of a standard transversality condition under certain technical conditions. Their result is one of the most powerful on the necessity of a transversality condition currently available in the literature ...
Takashi Kamihigashi
core  

Terminal perturbation method for the backward approach to continuous time mean-variance portfolio selection

open access: yes
A terminal perturbation method is introduced to study the backward approach to continuous time mean-variance portfolio selection with bankruptcy prohibition in a complete market model.
Ji, Shaolin, Peng, Shige
core  

Ekeland's variational principle in vecter optimization

open access: yesEkeland's variational principle in vecter optimization
新潟大学 平成20年3月24日 新大院博(理)第292号 新大院博(理 ...
openaire  

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