Results 81 to 90 of about 7,949 (154)

Infinitely many weak solutions for a p-Laplacian equation with nonlinear boundary conditions

open access: yesElectronic Journal of Differential Equations, 2007
We study the following quasilinear problem with nonlinear boundary conditions $$displaylines -Delta _{p}u+a(x)|u|^{p-2} u=f(x,u) quad mbox{in }Omega, cr | abla u|^{p-2} frac{partial u}{partial u}=g(x,u) quad mbox{on } partialOmega, }$$ where ...
Pei-Hao Zhao, Ji-Hong Zhao
doaj  

Existence and multiplicity of solutions for Dirichlet problems involving the p(x)-Laplace operator

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study superlinear Dirichlet problems involving the p(x)-Laplace operator without using the Ambrosetti-Rabinowitz's superquadraticity condition.
Mustafa Avci
doaj  

Infinitely many solutions for an elliptic system with nonlinear boundary conditions

open access: yesElectronic Journal of Differential Equations, 2001
In this paper we prove the existence of infinitely many nontrivial solutions of the system $Delta u = u, Delta v = v,$ with nonlinear coupling at the smooth boundary of a bounded domain of $mathbb{R}^N$.
Julian Fernandez Bonder   +2 more
doaj  

Existence and non-existence of solutions for a p(x)-biharmonic problem

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we study the following problem with Navier boundary conditions $$\displaylines{ \Delta (|\Delta u|^{p(x)-2}\Delta u)+|u|^{p(x)-2}u =\lambda |u|^{q(x)-2}u +\mu|u|^{\gamma(x)-2}u\quad \text{in } \Omega,\cr u=\Delta u=0 \quad \text{on
Ghasem A. Afrouzi   +2 more
doaj  

Multiplicity of normalized solutions to a class of nonlinear fractional Schrödinger–Poisson systems with Hardy potential

open access: yesBoundary Value Problems
In this paper, we study the multiplicity of normalized solutions to a class of nonlinear fractional Schrödinger–Poisson systems with Hardy potential. First, by using some ideas of the fountain theorem, we define a sequence of minimax values, and then we ...
Xinsheng Du, Shanshan Wang
doaj   +1 more source

Infinitely many large energy solutions of superlinear Schrodinger-Maxwell equations

open access: yesElectronic Journal of Differential Equations, 2012
In this article we study the existence of infinitely many large energy solutions for the superlinear Schrodinger-Maxwell equations $$displaylines{ -Delta u+V(x)u+ phi u=f(x,u) quad hbox{in }mathbb{R}^3,cr -Delta phi=u^2, quad hbox{in }mathbb{R}^3, }
Lin Li, Shang-Jie Chen
doaj  

Cross-sectional associations between serum PFASs and inflammatory biomarkers in a population exposed to AFFF-contaminated drinking water. [PDF]

open access: yesInt J Hyg Environ Health, 2022
Barton KE   +7 more
europepmc   +1 more source

Existence and multiplicity of periodic solutions generated by impulses for second-order Hamiltonian system

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study the existence of non-zero periodic solutions for Hamiltonian systems with impulsive conditions. By using a variational method and a variant fountain theorem, we obtain new criteria to guarantee that the system has at least ...
Dan Zhang, Qinghua Wu, Binxiang Dai
doaj  

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