English
Related papers

Related papers: Critical point localization and multiplicity resul…

200 papers

Using the Nehari manifold method, we establish sufficient conditions such that a smooth functional attains a ground state within an annular domain of a closed cone. The localization we obtain immediately allows for multiplicity when applied…

Analysis of PDEs · Mathematics 2025-03-18 Andrei Stan

In this paper, we study the multiplicity of nonnegative solutions for mixed local and non-local problem involving critical nonlinearity with sign changing weight. Using Nehari manifold method and fibering map analysis, we have shown…

Analysis of PDEs · Mathematics 2024-12-02 V. M. Tripathi

In this paper, we deal with equations of variational form which Nahari manifolds can contain more than two different types of critical points. We introduce a method of separating critical points on the Nahari manifold, based on the use of…

Analysis of PDEs · Mathematics 2019-06-20 Marcos L. M. Carvalho , Yavdat Sh. Il'yasov , Carlos Alberto Santos

The aim of this paper is to extend the Nehari manifold method from the variational setting to the nonvariational framework of fixed point equations. This is achieved by constructing a radial energy functional that generalizes the standard…

Analysis of PDEs · Mathematics 2025-12-09 Radu Precup , Andrei Stan

This paper is dedicated to studying the existence of nontrivial positive solutions for a Kirchhoff-type problem with sign change nonlinearities and a singular term, Using the Nehari manifold and EkelandS variational principle we prove that…

Analysis of PDEs · Mathematics 2025-10-10 Djamel Abid

In this paper we study the existence and multiplicity of two distinct nontrivial weak solutions of the following equation in Nehari manifold. We have also proved that these solutions are in $L^{\infty}(\Omega)$. \begin{align*} \begin{split}…

Analysis of PDEs · Mathematics 2019-07-23 Amita Soni , D. Choudhuri

This paper develops a fixed point version of the well-known Nehari manifold method from critical point theory. The main result is formulated for systems of operator equations, relying on the fixed point theorems of Schauder and Schaefer.…

Functional Analysis · Mathematics 2025-12-18 Radu Precup , Andrei Stan

In this paper, we consider the multiplicity of solutions for a class of Kirchhoff type problems with sub-linear and critical terms on an unbounded domain. With the aid of Ekeland's variational principle and the concentration compactness…

Functional Analysis · Mathematics 2016-05-23 Xiaofei Cao , Junxiang Xu , Jun Wang

By using the fibering method jointly with Nehari manifold techniques, we obtain the existence of multiple solutions to a fractional $p$-Laplacian system involving critical concave-convex nonlinearities provided that a suitable smallness…

Analysis of PDEs · Mathematics 2016-07-05 Wenjing Chen , Marco Squassina

We proceed with the study of the Nehari manifold method for functionals in $C^1(X \setminus \{0\})$, where $X$ is a Banach space. We deal now with functionals whose fibering maps have two critical points (a minimiser followed by a…

Analysis of PDEs · Mathematics 2025-02-11 Edir J. F. Leite , Humberto Ramos Quoirin , Kaye Silva

In this paper we are concerned with some $p$-Kirchhoff type problems involving sign-changing weight functions. We prove the existence of multiple positive solutions of the problem via the Nehari manifold approach.

Analysis of PDEs · Mathematics 2016-02-11 S. H. Rasouli , K. Fallah

In this paper, we prove multiplicity of solutions for a class of quasilinear problems in $ \mathbb{R}^{N} $ involving variable exponents and nonlinearities of concave-convex type. The main tools used are variational methods, more precisely,…

Analysis of PDEs · Mathematics 2014-09-04 Claudianor O. Alves , José L. P. Barreiro , José V. A. Gonçalves

In this paper, we study certain critical Schr\"{o}dinger-Kirchhoff type systems involving the fractional $p$-Laplace operator on a bounded domain. More precisely, using the properties of the associated functional energy on the Nehari…

Analysis of PDEs · Mathematics 2023-06-16 S. Fareh , K. Akrout , A. Ghanmi , D. D. Repovš

In this paper, some existence results for sign-changing critical points of locally Lipschitz functionals in real Banach space are obtained by the method combining the invariant sets of descending ow method with a quantitative deformation.…

Analysis of PDEs · Mathematics 2024-04-26 Xian Xu , Baoxia Qin

In this article using Nehari manifold method we study the multiplicity of solutions of the following nonlocal elliptic system involving variable exponents and concave-convex nonlinearities: \begin{equation*} \;\;\; \begin{array}{rl}…

Analysis of PDEs · Mathematics 2020-04-21 Reshmi Biswas , Sweta Tiwari

We propose existence and multiplicity results for the system of Schr\"odinger equations with sign-changing nonlinearities in bounded domains or in the whole space $\mathbb{R}^N$. In the bounded domain we utilize the classical approach via…

Analysis of PDEs · Mathematics 2019-08-20 Bartosz Bieganowski

Firstly, we use Nehari manifold and Mountain Pass Lemma to prove an existence result of positive solutions for a class of nonlocal elliptic system with Kirchhoff type. Then a multiplicity result is established by cohomological index of…

Analysis of PDEs · Mathematics 2014-10-24 Zhitao Zhang , Yimin Sun

In this paper, we prove new existence and multiplicity results for critical points of lower semicontinuous functionals in Banach spaces, complementing the nonsmooth critical point theory set forth by Szulkin and avoiding the need of the…

Analysis of PDEs · Mathematics 2026-03-11 Jaeyoung Byeon , Norihisa Ikoma , Andrea Malchiodi , Luciano Mari

We obtain existence and multiplicity results for the solutions of a class of coupled semilinear bi-harmonic Schr\"{o}dinger equations. Actually, using the classical Mountain Pass Theorem and minimization techniques, we prove the existence…

Analysis of PDEs · Mathematics 2014-05-30 P. Álvarez-Caudevilla , E. Colorado , V. A. Galaktionov

This paper is concerned with variational continuation of branches of solutions for nonlinear boundary value problems, which involve the p-Laplacian, the indefinite nonlinearity, and depend on the real parameter $\lambda$. A special focus is…

Analysis of PDEs · Mathematics 2019-06-06 Yavdat Il'yasov , Kaye Silva
‹ Prev 1 2 3 10 Next ›