Solutions for autonomous semilinear elliptic equations

Fuente: arXiv
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Main Authors: Molino, Alexis, Villegas, Salvador
Format: Preprint
Published: 2025
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author Molino, Alexis
Villegas, Salvador
author_facet Molino, Alexis
Villegas, Salvador
contents We study existence of nontrivial solutions to problem \begin{equation*} \left\lbrace \begin{array}{rcll} -Δu &=& λu+f(u)&\text{ in }Ω,\\ u&=&0&\text{ on }\partial Ω, \end{array}\right. \end{equation*} where $Ω\subset \mathbb{R}^N$ is a smooth bounded domain, $N\geq 1$, $λ\in \mathbb{R}$ and $f:\mathbb{R}\to \mathbb{R}$ is any locally Lipschitz function with nonpositive primitive. A complete description is obtained for $N=1$ and partial results for $N\geq 2$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18877
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Solutions for autonomous semilinear elliptic equations
Molino, Alexis
Villegas, Salvador
Analysis of PDEs
Classical Analysis and ODEs
35J05, 35J15, 35J25
We study existence of nontrivial solutions to problem \begin{equation*} \left\lbrace \begin{array}{rcll} -Δu &=& λu+f(u)&\text{ in }Ω,\\ u&=&0&\text{ on }\partial Ω, \end{array}\right. \end{equation*} where $Ω\subset \mathbb{R}^N$ is a smooth bounded domain, $N\geq 1$, $λ\in \mathbb{R}$ and $f:\mathbb{R}\to \mathbb{R}$ is any locally Lipschitz function with nonpositive primitive. A complete description is obtained for $N=1$ and partial results for $N\geq 2$.
title Solutions for autonomous semilinear elliptic equations
topic Analysis of PDEs
Classical Analysis and ODEs
35J05, 35J15, 35J25
url https://arxiv.org/abs/2504.18877