Results 61 to 70 of about 348 (123)

Multiple positive solutions for Kirchhoff problems with sign-changing potential

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we study the existence and multiplicity of positive solutions for a class of Kirchhoff type equations with sign-changing potential. Using the Nehari manifold, we obtain two positive solutions.
Gao-Sheng Liu   +3 more
doaj  

Infinitely Many Nontrivial Solutions of Resonant Cooperative Elliptic Systems with Superlinear Terms

open access: yesAbstract and Applied Analysis, 2014
We study a class of resonant cooperative elliptic systems and replace the Ambrosetti-Rabinowitz superlinear condition with general superlinear conditions.
Guanwei Chen, Shiwang Ma
doaj   +1 more source

A Note on the Minimal Period Problem for Second Order Hamiltonian Systems

open access: yesAbstract and Applied Analysis, 2014
We study periodic solutions of second order Hamiltonian systems with even potential. By making use of generalized Nehari manifold, some sufficient conditions are obtained to guarantee the multiplicity and minimality of periodic solutions for second order
Huafeng Xiao
doaj   +1 more source

Multiplicity of positive solutions for a Navier boundary-value problem involving the p-biharmonic with critical exponent

open access: yesElectronic Journal of Differential Equations, 2011
By using the Nehari manifold and variational methods, we prove that a p-biharmonic system has at least two positive solutions when the pair the parameters satisfy certain inequality.
Ying Shen, Jihui Zhang
doaj  

Nehari manifold and multiplicity result for elliptic equation involving p-laplacian problems

open access: yesBoletim da Sociedade Paranaense de Matemática, 2018
This article shows the existence and multiplicity of positive solutions of the $p$-Laplacien problem $$\displaystyle -\Delta_{p} u=\frac{1}{p^{\ast}}\frac{\partial F(x,u)}{\partial u} + \lambda a(x)|u|^{q-2}u \quad \mbox{for } x\in\Omega;\quad \quad u=0,\quad \mbox{for } x\in\partial\Omega$$ where $\Omega$ is a bounded open set in $\mathbb{R}^n$ with ...
Khaled Ben Ali, Abdeljabbar Ghanmi
openaire   +4 more sources

Multiplicity of positive solutions for critical singular elliptic systems with sign-changing weight function

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper, the existence and multiplicity of positive solutions for a critical singular elliptic system with concave and convex nonlinearity and sign-changing weight function, are established.
Huixing Zhang
doaj   +1 more source

Existence of Solutions for Nonhomogeneous Choquard Equations Involving p-Laplacian

open access: yesMathematics, 2019
This paper is devoted to investigating a class of nonhomogeneous Choquard equations with perturbation involving p-Laplacian. Under suitable hypotheses about the perturbation term, the existence of at least two nontrivial solutions for the given problems ...
Xiaoyan Shi, Yulin Zhao, Haibo Chen
doaj   +1 more source

Solitary Waves of the Schrödinger Lattice System with Nonlinear Hopping

open access: yesJournal of Function Spaces, 2015
This paper is concerned with the nonlinear Schrödinger lattice with nonlinear hopping. Via variation approach and the Nehari manifold argument, we obtain two types of solution: periodic ground state and localized ground state.
Ming Cheng
doaj   +1 more source

Multiplicity of Positive Solutions of laplacian systems with sign-changing weight functions

open access: yesSahand Communications in Mathematical Analysis, 2014
In this paper, we study the multiplicity of positive solutions for the Laplacian systems with sign-changing weight functions. Using the decomposition of the Nehari manifold, we prove that an elliptic system has at least two positive solutions.
Seyyed Sadegh Kazemipoor   +1 more
doaj  

Existence and multiplicity of positive solutions for indefinite semilinear elliptic problems in R^N

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study a class of indefinite semilinear elliptic problems in R^N. By using the fibering maps and studying some properties of the Nehari manifold, we obtain the existence and multiplicity of positive solutions.
Yi-Hsin Cheng, Tsung-Fang Wu
doaj  

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