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We are interested in looking for two nontrivial solutions for a class of nonhomogeneous quasilinear elliptic system with sign-changing weight functions and concave-convex nonlinearities on the bounded domain. This kind of quasilinear…

Analysis of PDEs · Mathematics 2024-01-01 Wanting Qi , Xingyong Zhang

It is established some existence and multiplicity of solution results for a quasilinear elliptic problem driven by $\Phi$-Laplacian operator. One of these solutions is built as a ground state solution. In order to prove our main results we…

Analysis of PDEs · Mathematics 2017-03-28 M. L. M. Carvalho , J. V. Goncalves , C. Goulart , O. H. Miyagaki

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

In this paper, we study the multiplicity of positive solutions for the p-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…

Analysis of PDEs · Mathematics 2013-12-30 Seyyed Sadegh Kazemipoor , Mahboobeh Zakeri

In this paper we study quasilinear elliptic equations driven by the double phase operator involving a Choquard term of the form \begin{align*} -\mathcal{L}_{p,q}^{a}(u) + |u|^{p-2}u+ a(x) |u|^{q-2}u = \left( \int_{\mathbb{R}^N} \frac{F(y,…

Analysis of PDEs · Mathematics 2022-10-27 Rakesh Arora , Alessio Fiscella , Tuhina Mukherjee , Patrick Winkert

We are concerned with the existence and asymptotic behavior of multiple radial sign-changing solutions with the nodal characterization for a Kirchhoff-type problem involving the nonlinearity $|u|^{p-2}u(2<p<4)$ in $\mathbb{R}^3$. By…

Analysis of PDEs · Mathematics 2025-01-23 Haining Fan , Marco Squassina , Jianjun Zhang

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

We study the existence and multiplicity of solutions to the elliptic system where RN is a bounded and smooth domain. Using fibering maps and extracting Palais-Smale sequences in the Nehari manifold, we prove the existence of at least two…

Analysis of PDEs · Mathematics 2015-12-29 Seyyed Sadegh Kazemipoor , Mahboobeh Zakeri

We establish the existence of multiple solutions for singular quasilinear elliptic problems with a precise sign information: two opposite constant sign solutions and a nodal solution. The approach combines sub-supersolutions method and…

Analysis of PDEs · Mathematics 2023-10-30 Dumitru Motreanu , Abdelkrim Moussaoui

We investigate the multiplicity of solutions for a quasilinear scalar field equation with a nonhomogeneous differential operator defined by \begin{eqnarray} Su:=-\mbox{div}\left\{\phi \left(\frac{u^{2}+|\nabla u|^{2}}{2}\right)\nabla…

Analysis of PDEs · Mathematics 2023-11-02 Wanting Qi , Xingyong Zhang

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 this paper, we consider a fractional p-Laplacian system with both concave-convex nonlinearities and sign-changing weight functions in bounded domains. With the help of the Nehari\ manifold, we prove that the system has at least two…

Analysis of PDEs · Mathematics 2017-11-20 Maoding Zhen

In this work, we establish the existence and multiplicity of weak solutions for nonlocal elliptic problems driven by the fractional $\Phi$-Laplacian operator, in the presence of a sign-indefinite nonlinearity. More specifically, we…

Analysis of PDEs · Mathematics 2025-07-22 L. R. S. de Assis , M. L. M. Carvalho , Edcarlos D. Silva , A. Salort

We obtain existence and multiplicity results for quasilinear fourth order elliptic equations on $\mathbb{R}^{N}$ with sign-changing potential. Our results generalize some recent results on this problem.

Analysis of PDEs · Mathematics 2018-08-09 Shibo Liu , Zhihan Zhao

We study the following singular problem involving the p$(x)$-Laplace operator $\Delta_{p(x)}u= div(|\nabla u|^{p(x)-2}\nabla u)$, where $p(x)$ is a nonconstant continuous function, \begin{equation} \nonumber {{(\rm P_\lambda)}}…

Analysis of PDEs · Mathematics 2022-12-20 Dušan D. Repovš , Kamel Saoudi

\noi In this article, we study the existence of non-negative solutions of the following polyharmonic Kirchhoff type problem with critical singular exponential nolinearity $$ \quad \left\{ \begin{array}{lr} \quad…

Analysis of PDEs · Mathematics 2016-04-04 Pawan Kumar Mishra , Sarika Goyal , K. Sreenadh

It is established existence, multiplicity and asymptotic behavior of positive solutions for a quasilinear elliptic problem driven by the $\Phi$-Laplacian operator. One of these solutions is obtained as ground state solution by applying the…

Analysis of PDEs · Mathematics 2016-10-18 C. Goulart , E. D. da Silva , M. L. M. Carvalho , J. V. Goncalves

In this paper, we are concerned with the quasilinear Schr\"{o}dinger equation \begin{equation*} -\Delta u+V(x)u-u\Delta(u^2)=g(u),\ \ x\in \mathbb{R}^{N}, \end{equation*} where $N\geq3$, $V$ is radially symmetric and nonnegative, and $g$ is…

Analysis of PDEs · Mathematics 2022-05-31 Hui Zhang , Fengjuan Meng , Jianjun Zhang

We consider planar solutions to certain quasilinear elliptic equations subject to the Dirichlet boundary conditions; the boundary data is assumed to have finite number of relative maximum and minimum values. We are interested in certain…

Analysis of PDEs · Mathematics 2012-09-21 Seppo Granlund , Niko Marola

We study a $p$-Laplacian equation involving a parameter $\lambda$ and a concave-convex nonlinearity containing a weight which can change sign. By using the Nehari manifold and the fibering method, we show the existence of two positive…

Analysis of PDEs · Mathematics 2019-06-06 Kaye Silva , Abiel Macedo