Results 21 to 30 of about 521 (162)

Multiple Solutions for Singular Systems with Sign-Changing Weight, Nonlinear Singularities and Critical Exponent

open access: yesInternational Journal of Differential Equations
This paper is an attempt to establish the existence and multiplicity results of nontrivial solutions to singular systems with sign-changing weight, nonlinear singularities, and critical exponent.
Mohammed El Mokhtar Ould El Mokhtar   +1 more
doaj   +2 more sources

The Nehari manifold for a semilinear elliptic equation with a sign-changing weight function

open access: bronzeJournal of Differential Equations, 2003
AbstractThe Nehari manifold for the equation −Δu(x)=λa(x)u(x)+b(x)|u(x)|ν−1u(x) for x∈Ω together with Dirichlet boundary conditions is investigated. Exploiting the relationship between the Nehari manifold and fibrering maps (i.e., maps of the form t→J(tu) where J is the Euler functional associated with the equation) we discuss how the Nehari manifold ...
K.J. Brown, Yanping Zhang
openalex   +3 more sources

Nehari manifold approach for a singular multi-phase variable exponent problem [PDF]

open access: green
This paper is concerned with a singular multi-phase problem with variable singularities. The main tool used is the Nehari manifold approach. Existence of at least two positive solutions with positive-negative energy levels are obtained.
Mustafa Avcı
openalex   +3 more sources

On extreme values of Nehari manifold method via nonlinear Rayleigh's quotient [PDF]

open access: greenTopological Methods in Nonlinear Analysis, 2017
We study applicability conditions of the Nehari manifold method for the equation of the form $ D_u T(u)- D_u F(u)=0 $ in a Banach space $W$, where $ $ is a real parameter. Our study is based on the development of the theory Rayleigh's quotient for nonlinear problems.
Yavdat Il’yasov
openalex   +6 more sources

On branches of positive solutions for 𝑝-Laplacian problems at the extreme value of the Nehari manifold method

open access: bronzeProceedings of the American Mathematical Society, 2017
This paper is concerned with variational continuation of branches of solutions for nonlinear boundary value problems, which involve the p p -Laplacian, an indefinite nonlinearity, and depend on a real parameter λ \lambda .
Yavdat Il’yasov, Kaye Silva
openalex   +5 more sources

The Nehari manifold for a fractional Laplacian equation involving critical nonlinearities

open access: goldCommunications on Pure & Applied Analysis, 2018
We study the combined effect of concave and convex nonlinearities on the numbers of positive solutions for a fractional equation involving critical Sobolev exponents. In this paper, we concerned with the following fractional equation \begin{document}$ \left\{ \begin{array}{l}{\left( { - \Delta } \right)^s}u = \lambda f\left( x ...
Qingfang Wang
openalex   +3 more sources

On the existence of ground states of an equation of Schrödinger–Poisson–Slater type

open access: yesComptes Rendus. Mathématique, 2021
We study the existence of ground states of a Schrödinger–Poisson–Slater type equation with pure power nonlinearity. By carrying out the constrained minimization on a special manifold, which is a combination of the Pohozaev manifold and Nehari manifold ...
Lei, Chunyu, Lei, Yutian
doaj   +1 more source

Existence and multiplicity of solutions to fractional p-Laplacian systems with concave–convex nonlinearities [PDF]

open access: yesBulletin of Mathematical Sciences, 2020
This paper is concerned with a fractional p-Laplacian system with both concave–convex nonlinearities. The existence and multiplicity results of positive solutions are obtained by variational methods and the Nehari manifold.
Hamed Alsulami   +4 more
doaj   +1 more source

The Nehari manifold for systems of nonlinear elliptic equations [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2006
Abstract This paper deals with the existence and multiplicity results of nonlocal positive solutions to the following system: - Δ p u = λ | u | p 1 - 2 u + ( α + 1 ) u | u | α - 1 | v | β + 1 , - Δ q v = μ | v | q - 2 v + ( β + 1 ) | u |
Khalid Adriouch, A. El Hamidi
openaire   +2 more sources

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