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The first five classical Painlev\'e equations are known to have solutions described by divergent asymptotic power series near infinity. Here we prove that such solutions also exist for the infinite hierarchy of equations associated with the…

Classical Analysis and ODEs · Mathematics 2009-11-07 N. Joshi , M. Mazzocco

In this paper, we will prove the existence of infinitely many solutions to the following equation by utilizing the variational perturbation method \begin{equation*} -div(A(x,u)|\nabla u|^{p-2}\nabla u)+\frac{1}{p}A_{t}(x,u)|\nabla…

Analysis of PDEs · Mathematics 2025-09-09 Lin Zhang

We consider semilinear Robin problems driven by the negative Laplacian plus an indefinite potential and with a superlinear reaction term which need not satisfy the Ambrosetti-Rabinowitz condition. We prove existence and multiplicity…

Analysis of PDEs · Mathematics 2019-09-12 Nikolaos S. Papageorgiou , Vicenţiu D. Rădulescu , Dušan D. Repovš

We discuss a new approach to solve the low lying states of the Schroedinger equation. For a fairly large class of problems, this new approach leads to convergent iterative solutions, in contrast to perturbative series expansions. These…

Quantum Physics · Physics 2009-11-10 R. Friedberg , T. D. Lee

In this paper, we study a class of nonlinear Choquard type equations involving a general nonlinearity. By using the method of penalization argument, we show that there exists a family of solutions having multiple concentration regions which…

Analysis of PDEs · Mathematics 2016-04-19 Minbo Yang , Jianjun Zhang , Yimin Zhang

In this paper, we consider a class of quasilinear stationary Kirchhoff type potential systems in unbounded domains, which involves a general variable exponent elliptic operator. Under some suitable conditions on the nonlinearities, we…

Analysis of PDEs · Mathematics 2022-07-15 Nabil Chems Eddine , Anass Ouannasser

This article establishes the existence and multiplicity of normalized solutions to the weighted nonlinear Schr\"odinger-type equation governed by the Caffarelli-Kohn-Nirenberg operator, $$ -\text{div}(|x|^{-2a}\nabla u)=\lambda…

Analysis of PDEs · Mathematics 2026-01-29 Divya Goel , Asmita Rai

In this paper, we prove the discrete Caffarelli-Kohn-Nirenberg inequalities on the lattice $\mathbb{Z}^{N}$ ($N\geq 1$) in a broader range of parameters than the classical continuous version [8]: \[ \parallel u\parallel_{\ell_{b}^{q}}\leq…

Analysis of PDEs · Mathematics 2025-08-06 Fengwen Han , Ruowei Li

We establish conditions for nonexistence of global solutions for a class of quasilinear parabolic problems with a potential on complete, non-compact Riemannian manifolds, including the Porous Medium Equation and the p-Laplacian with a…

Analysis of PDEs · Mathematics 2025-11-21 Dorothea-Enrica von Criegern , Gabriele Grillo , Dario Monticelli

This paper deals with the existence of asymptotic almost automorphic solution of fractional integro differential equation. We prove the result by using fixed point theorems. We show the result with Lipschitz condition and without Lipschitz…

Classical Analysis and ODEs · Mathematics 2013-04-02 Syed Abbas , Gaston M. N'Guerekata

In this paper we examine the existence of multiple solutions of parametric fractional equations involving the square root of the Laplacian $A_{1/2}$ in a smooth bounded domain $\Omega\subset \mathbb{R}^n$ ($n\geq 2$) and with Dirichlet…

Analysis of PDEs · Mathematics 2017-07-04 Giovanni Molica Bisci , Dušan D. Repovš , Luca Vilasi

In this paper our objective is to investigate the existence of multiple normalized solutions to the logarithmic Schr\"{o}dinger equation given by \begin{align*} \left\{ \begin{aligned} &-\epsilon^2 \Delta u+V( x)u=\lambda u+u \log u^2,…

Analysis of PDEs · Mathematics 2023-07-04 Claudianor O. Alves , Chao Ji

We investigate existence and uniqueness of bounded solutions of parabolic equations with unbounded coefficients in $M\times \mathbb R_+$, where $M$ is a complete noncompact Riemannian manifold. Under specific assumptions, we establish…

Analysis of PDEs · Mathematics 2015-12-01 Paolo Mastrolia , Dario D. Monticelli , Fabio Punzo

We consider a Br\'ezis-Nirenberg type critical growth $p$-Laplacian problem involving a parameter $\mu > 0$ in a smooth bounded domain $\Omega$. We prove the existence of multiple nontrivial solutions if either $\mu$ or the volume of…

Analysis of PDEs · Mathematics 2024-08-28 Said El Manouni , Kanishka Perera

Multiplicity results are proved for solutions both with positive and negative energy, as well as nonexistence results, of a generalized quasilinear Schr\"odinger potential free equation in the entire R^N involving a nonlinearity which…

Analysis of PDEs · Mathematics 2023-12-14 Laura Baldelli , Roberta Filippucci

We are concerned with the asymptotic analysis of positive blow-up boundary solutions for a class of quasilinear elliptic equations with absorption term. By means of the Karamata theory we establish the first two terms in the expansion of…

Analysis of PDEs · Mathematics 2016-02-11 Dušan Repovš

In this paper we prove the existence of a signed ground state solution in the mountain pass level for a class of asymptotically linear elliptic problems, even when the nonlinearity is just continuous in the second variable. The (strongly)…

Analysis of PDEs · Mathematics 2022-10-12 José Roberto Nascimento , Marcos Tadeu O. Pimenta , João R. Santos Júnior

We prove the stability of the Einstein-scalar field Lichnerowicz equation under subcritical perturbations of the critical nonlinearity in dimensions 3, 4 and 5. As a consequence, we obtain the existence of a second solution to the equation…

Analysis of PDEs · Mathematics 2013-07-10 Bruno Premoselli

We deal with existence of entire solutions for the quasilinear elliptic system of this type {\Delta}_{p}u_{i}+h_{i}(|x|)|\bigtriangledown u_{i}|^{p-1}=a_{i}(|x|)f_{i}(u_1,u_2) on R^{N} (N\geq3, i=1,2) where N-1\geqp>1, {\Delta}_{p} is the…

Classical Analysis and ODEs · Mathematics 2011-06-22 Dragos-Patru Covei

In this paper, our goal is to investigate the existence of multiple nodal solutions to a class of planar Stein-Weiss problems involving a nonlinearity $f$ with subcritical or critical growth in the sense of Trudinger-Moser. To achieve this,…

Analysis of PDEs · Mathematics 2025-02-10 Eudes M. Barboza , Eduardo De S. Böer , Olímpio H. Miyagaki , Claudia R. Santana