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In this paper we prove the existence of two solutions having a prescribed $L^2$-norm for a quasi-linear Schr\"odinger equation. One of these solutions is a mountain pass solution relative to a constraint and the other one a minimum either…

Analysis of PDEs · Mathematics 2015-04-29 Louis Jeanjean , Tingjian Luo , Zhi-Qiang Wang

In this paper, we study a class of quasilinear Schr\"{o}dinger equation of the form $$-\varepsilon^2\Delta u+V(x)u-\varepsilon^2(\Delta(|u|^{2\alpha}))|u|^{2\alpha-2}u &=&\lambda|u|^{q-2}u+|u|^{2^*(2\alpha)-2}u,\quad\mbox{in}{\mathbb{R}}^N,…

Analysis of PDEs · Mathematics 2013-06-21 Zhouxin Li , Yimin Zhang

We investigate the existence and multiplicity of weak solutions for a nonlinear Kirchhoff type quasilinear elliptic system on the whole space $\mathbb{R}^N$. We assume that the nonlinear term satisfies the locally super-$(m_1,m_2)$…

Analysis of PDEs · Mathematics 2022-05-26 Cuiling Liu , Xingyong Zhang

We study the existence of nonnegative solutions to the following nonlocal elliptic problem involving singularity \begin{align} \mathfrak{M}\left(\int_{Q}\frac{|u(x)-u(y)|^p}{|x-y|^{N+ps}}dxdy\right)(-\Delta)_{p}^{s}…

Analysis of PDEs · Mathematics 2024-06-18 Sekhar Ghosh , Debajyoti Choudhuri , Alessio Fiscella

It is established the existence and multiplicity of weak solutions for a class of nonlocal equations involving the fractional laplacian, nonlinearities with critical exponential growth and potentials this is which may change sign. The…

Analysis of PDEs · Mathematics 2014-11-19 Manassés de Souza , Yane Lisley Araújo

In this paper, we investigate existence results for nonlinear nonlocal problems governed by an operator obtained as a superposition of fractional $p$-Laplacians, subject to Neumann boundary conditions. A spectral analysis of the main…

Analysis of PDEs · Mathematics 2025-12-16 Yergen Aikyn

We prove sharp asymptotic estimates for the gradient of positive solutions to certain nonlinear $p$-Laplace equations in Euclidean space by showing symmetry and uniqueness of positive solutions to associated limiting problems.

Analysis of PDEs · Mathematics 2024-07-29 Ramya Dutta , Pierre-Damien Thizy

This paper is concerned with the following fractional Schr\"{o}dinger equations involving critical exponents: \begin{eqnarray*} (-\Delta)^{\alpha}u+V(x)u=k(x)f(u)+\lambda|u|^{2_{\alpha}^{*}-2}u\quad\quad \mbox{in}\ \mathbb{R}^{N},…

Analysis of PDEs · Mathematics 2017-01-10 Xia Zhang , Binlin Zhang , Dušan Repovš

We prove H\"older continuity up to the boundary for solutions of quasi-linear degenerate elliptic problems in divergence form, not necessarily of variational type, on Lipschitz domains with Neumann and Robin boundary conditions. This…

Analysis of PDEs · Mathematics 2011-04-28 Robin Nittka

We study the existence and multiplicity of positive solutions in $H^1(\mathbb{R}^N)$, $N\ge3$, with prescribed $L^2$-norm, for the (stationary) nonlinear Schr\"odinger equation with Sobolev critical power nonlinearity. It is well known…

Analysis of PDEs · Mathematics 2025-05-09 Gianmaria Verzini , Junwei Yu

This paper addresses a class of elliptic problems involving the superposition of nonlinear fractional operators with the critical Sobolev exponent in the sublinear regimes. We establish the existence of infinitely many nontrivial weak…

Analysis of PDEs · Mathematics 2026-02-17 Souvik Bhowmick , Sekhar Ghosh , Vishvesh Kumar

In the present paper, we study a class of quasilinear Choquard equations involving $N$-Laplacian and the nonlinearity with the critical exponential growth. We discuss the existence of positive solutions of such equations.

Analysis of PDEs · Mathematics 2023-07-19 Reshmi Biswas , Sarika Goyal , K. Sreenadh

We justify supercritical geometric optics in small time for the defocusing semiclassical Nonlinear Schrodinger Equation for a large class of non-necessarily homogeneous nonlinearities. The case of a half-space with Neumann boundary…

Analysis of PDEs · Mathematics 2009-11-13 D. Chiron , F. Rousset

We investigate a class of elliptic and parabolic partial differential equations driven by p(u) laplacian. This dependence necessitates the use of variable exponent Sobolev spaces specifically tailored to the anisotropic framework. For the…

Analysis of PDEs · Mathematics 2025-10-17 Kaushik Bal , Shilpa Gupta

We prove a Caffarelli--Kohn--Nirenberg inequality in the hyperbolic space. For a semilinear elliptic equation involving the associated weighted Laplace--Beltrami operator, we establish variationally the existence of positive radial…

Analysis of PDEs · Mathematics 2017-11-17 Hardy Chan , Luiz Fernando de Oliveira Faria , Shaya Shakerian

We investigate the asymptotic behavior of solutions to a class of weighted quasilinear elliptic equations which arise from the Euler--Lagrange equation associated with the Caffarelli--Kohn--Nirenberg inequality. We obtain sharp pointwise…

Analysis of PDEs · Mathematics 2024-02-23 Shaya Shakerian , Jérôme Vétois

We show the existence of nodal solutions to perturbed quasilinear elliptic equations with critical Sobolev exponent on compact Riemannian manifolds. A nonexistence result is also given.

Analysis of PDEs · Mathematics 2007-10-09 Mohammed Benalili

We establish the existence of a fully nontrivial solution with nonnegative components for a weakly coupled competitive system for the $p$-Laplacian in $\mathbb{R}^N$ whose nonlinear terms are purely critical. We also show that the purely…

Analysis of PDEs · Mathematics 2025-02-26 Mónica Clapp , Víctor A. Vicente-Benítez

We consider the existence and multiplicity of solutions for a class of quasi-linear Schr\"{o}dinger equations which include the modified nonlinear Schr\"{o}dinger equations. A new perturbation approach is used to treat the sub-cubic…

Analysis of PDEs · Mathematics 2022-09-13 Chen Huang , Jianjun Zhang , Xuexiu Zhong

This paper studies the parabolic $p$-Laplace equation with $p>2$ in a moving domain under a Neumann type boundary condition corresponding to the total mass conservation. We establish the existence and uniqueness of a weak solution by the…

Analysis of PDEs · Mathematics 2026-01-30 Tatsu-Hiko Miura