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Using the method of Nehari manifold, we prove the existence of at least two distinct weak solutions to elliptic equation of four order with singulatities and with critical Sobolev growth.

Differential Geometry · Mathematics 2012-10-24 Mohammed Benalili , Kamel Tahri

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 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

In this paper we study weighted singular $p$-Laplace equations involving a bounded weight function which can be discontinuous. Due to its discontinuity classical regularity results cannot be applied. Based on Nehari manifolds we prove the…

Analysis of PDEs · Mathematics 2019-11-13 Nikolaos S. Papageorgiou , Patrick Winkert

In this paper we establish the existence of at least two weak solutions for the following fractional Kirchhoff problem involving singular and exponential nonlinearity \begin{equation*} \left\{\begin{split}…

Analysis of PDEs · Mathematics 2020-08-25 Tuhina Mukherjee , Mingqi Xiang

We study the existence of positive solutions of a particular elliptic system in $\mathbb{R}^3$ composed of two coupled non linear stationary Schr\"odinger equations (NLSEs), that is $-\epsilon^2 \Delta u + V(x) u= h_v(u,v), - \epsilon^2…

Analysis of PDEs · Mathematics 2024-02-29 Tommaso Cortopassi , Vladimir Georgiev

The main topic of this note is a discussion of applicability conditions of the Nehari manifold method depending on the value of parameters of equations. As the main tool, we apply the nonlinear generalized Rayleigh quotient method.

Analysis of PDEs · Mathematics 2021-08-03 Yavdat Il'yasov

In this paper we study a class of Hardy--Sobolev type systems defined in $\mathbb{R}^N$ and coupled by a singular critical Hardy--Sobolev term. The main novelty of this work is that the orders of the singularities are independent and…

Analysis of PDEs · Mathematics 2024-06-03 Ángel Arroyo , Rafael López-Soriano , Alejandro Ortega

In the present paper, we study a singular double phase variable exponent Dirichlet problem in the setting of a new Musielak-Orlicz Sobolev space with the nonlinearity (the external source) having gradient dependence (so-called convection…

Analysis of PDEs · Mathematics 2026-02-26 Mustafa Avci

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 prove the multiplicity of solutions for a class of quasilinear problems in $ \mathbb{R}^{N} $ involving variable exponents. The main tool used is in the proof are the direct methods, Ekeland's variational principle and some…

Analysis of PDEs · Mathematics 2014-09-02 Claudianor O. Alves , José L. P. Barreiro

This article investigates the existence, non-existence, and multiplicity of weak solutions for a parameter-dependent nonlocal Schr\"odinger-Kirchhoff type problem on $\mathbb R^N$ involving singular non-linearity. By performing fine…

Analysis of PDEs · Mathematics 2023-09-19 Deepak Kumar Mahanta , Tuhina Mukherjee , Abhishek Sarkar

In this paper we study the existence of a least energy sign-changing solution to a nonlocal elliptic PDE involving singularity by using the Nehari manifold method, the constraint variational method and Brouwer degree theory.

Analysis of PDEs · Mathematics 2021-08-26 Sekhar Ghosh , Kamel Saoudi , Mouna Kratou , Debajyoti Choudhuri

We study a class of nonlinear schr\"{o}dinger system with external sources terms as perturbations in order to obtain existence of multiple solutions, this system arises from Bose-Einstein condensates etc..As these external sources terms are…

Analysis of PDEs · Mathematics 2014-06-19 Zexin Qi , Zhitao Zhang

We consider an eigenvalue problem for a double-phase differential operator with unbalanced growth. Using the Nehari method, we show that the problem has a continuous spectrum determined by the minimal eigenvalue of the weighted p-Laplacian.

Analysis of PDEs · Mathematics 2023-02-22 Laura Gambera , Umberto Guarnotta , Nikolaos S. Papageorgiou

We establish the existence of a nonnegative fully nontrivial solution to a non-variational weakly coupled competitive elliptic system. We show that this kind of solutions belong to a topological manifold of Nehari-type, and apply a…

Analysis of PDEs · Mathematics 2022-03-29 Mónica Clapp , Andrzej Szulkin

The present paper deals with a parametrized Kirchhoff type problem involving a critical nonlinearity in high dimension. Existence, non existence and multiplicity of solutions are obtained under the effect of a subcritical perturbation by…

Analysis of PDEs · Mathematics 2020-06-11 F. Faraci , K. Silva

In this article, we study a double-phase variable-exponent Kirchhoff problem and show the existence of at least three solutions. The proposed model, as a generalization of the Kirchhoff equation, is interesting since it is driven by a…

Analysis of PDEs · Mathematics 2025-07-31 Mustafa Avci

In the paper, results on the existence of critical points in annular subsets of a cone are obtained with the additional goal of obtaining multiplicity results. Compared to other approaches in the literature based on the use of…

Analysis of PDEs · Mathematics 2025-12-19 Radu Precup , Andrei Stan

We are looking for solutions to nonlinear Schr\"odinger-type equations of the form $$ (-\Delta)^{\alpha / 2} u (x) + V(x) u(x) = h (x,u(x)), \quad x \in \mathbb{R}^N, $$ where $V : \mathbb{R}^N \rightarrow \mathbb{R}$ is an external…

Analysis of PDEs · Mathematics 2018-10-04 Bartosz Bieganowski