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Related papers: Multiple positive solutions for a double phase sys…

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We study the existence of positive solutions for a class of double phase Dirichlet equations which have the combined effects of a singular term and of a parametric superlinear term. The differential operator of the equation is the sum of a…

Analysis of PDEs · Mathematics 2021-05-17 Nikolaos S. Papageorgiou , Dušan D. Repovš , Calogero Vetro

We prove the existence of at least two positive solutions for the Laplacian system(E?)On a bounded region by using the Nehari manifold and the fibering maps associated with the Euler functional for the system.

Analysis of PDEs · Mathematics 2014-01-03 Seyyed Sadegh Kazemipoor , Mahboobeh Zakeri

In this article, we prove the existence of at least two positive weak solutions for a mixed local-nonlocal singular problem in the presence of critical exponential nonlinearity in dimension two. The novelty of this work is the inclusion of…

Analysis of PDEs · Mathematics 2025-03-12 Sanjit Biswas

This paper deals with existence of a nontrivial positive solution to systems of equations involving nontrivial nonhomogeneous terms and critical or subcritical nonlinearities. Via a minimization argument we prove existence of a positive…

Analysis of PDEs · Mathematics 2020-03-09 Mousomi Bhakta , Souptik Chakraborty , Patrizia Pucci

In this paper we study quasilinear elliptic equations driven by the double phase operator along with a reaction that has a singular and a parametric superlinear term and with a nonlinear Neumann boundary condition of critical growth. Based…

Analysis of PDEs · Mathematics 2022-02-23 Ángel Crespo-Blanco , Nikolaos S. Papageorgiou , Patrick Winkert

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

Two fiber lines may compensate each other for nonlinearity with the help of optical phase conjugation. The pair of fiber lines and the optical signals in them may be either mirror-symmetric or translationally symmetric about the conjugator.

Optics · Physics 2007-05-23 Haiqing Wei , David V. Plant

In this paper a nonlinear coupled Schrodinger system in the presence of mixed cubic and superlinear power laws is considered. Focus are made on the steady state solutions of the continuous system for existence and uniqueness by minimizing…

Analysis of PDEs · Mathematics 2018-05-16 Abdurahman F. Aljohani , Anouar Ben Mabrouk

In the present work, we establish the existence and multiplicity of positive solutions for the singular elliptic equations with a double weighted nonlocal interaction term defined in the whole space $\mathbb{R}^N$. The nonlocal term and the…

Analysis of PDEs · Mathematics 2025-03-11 Márcia S. B. A. Cardoso , Edcarlos D. Silva , Marcos. L. M. Carvalho , Minbo Yang

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

In this paper we study quasilinear elliptic Kirchhoff equations driven by a non-homogeneous operator with unbalanced growth and right-hand sides that consist of sub-linear, possibly singular, and super-linear reaction terms. Under very…

Analysis of PDEs · Mathematics 2025-10-31 Umberto Guarnotta , Patrick Winkert

In this paper, we study a class of singular double phase problems defined on Minkowski spaces in terms of Finsler manifolds and with right-hand sides that allow a certain type of critical growth for such problems. Under very general…

Analysis of PDEs · Mathematics 2021-03-18 Csaba Farkas , Patrick Winkert

In this paper, we study the existence of multiple positive solutions for a class of fractional Schr\"{o}dinger-Poisson systems involving sign-changing potential and critical nonlinearities on an unbounded domain. With the help of Nehari…

Analysis of PDEs · Mathematics 2021-03-03 Haining Fan , Zhaosheng Feng , Xingjie Yan

In this article, we study an elliptic problem of mixed order with both local and nonlocal aspects involving singular nonlinearity in combination with critical Hartree-type nonlinearity. Using variational methods together with the critical…

Analysis of PDEs · Mathematics 2023-10-12 G. C. Anthal , J. Giacomoni , K. Sreenadh

We study the existence of bound and ground states for a class of nonlinear elliptic systems in $\mathbb{R}^N$. These equations involve critical power nonlinearities and Hardy-type singular potentials, coupled by a term containing up to…

Analysis of PDEs · Mathematics 2021-07-09 Eduardo Colorado , Rafael López-Soriano , Alejandro Ortega

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

Results on existence and multiplicity of solutions for a nonlinear elliptic problem driven by the $\Phi$-Laplace operator are established. We employ minimization arguments on suitable Nehari manifolds to build a negative and a positive…

Analysis of PDEs · Mathematics 2016-10-11 E. D. Silva , M. L. M. Carvalho , F. J. S. A. Corrêa , Jose V. A. Goncalves

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 deals with some classes of Kirchhoff type problems on a double phase setting and with nonlinear boundary conditions. Under general assumptions, we provide multiplicity results for such problems in the case when the perturbations…

Analysis of PDEs · Mathematics 2021-12-16 Alessio Fiscella , Greta Marino , Andrea Pinamonti , Simone Verzellesi

In this paper we first introduce an innovative equivalent norm in the Musielak-Orlicz Sobolev spaces in a very general setting and we then present a new result on the boundedness of the solutions of a wide class of nonlinear Neumann…

Analysis of PDEs · Mathematics 2024-11-12 Eleonora Amoroso , Ángel Crespo-Blanco , Patrizia Pucci , Patrick Winkert