A new infinite-dimensional Linking theorem with application to a system of coupled Poisson equations

Fuente: arXiv
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Main Authors: Songo, Ablanvi, Colin, Fabrice
Format: Preprint
Published: 2025
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author Songo, Ablanvi
Colin, Fabrice
author_facet Songo, Ablanvi
Colin, Fabrice
contents Using the minimax technique from the critical point theory, which consists in constructing or transforming a suitable class of applications such that a critical value $c$ of a functional $f$ can be characterized as a minimax value over this class, we establish a new natural infinite-dimensional linking theorem for strongly indefinite functionals by using the $τ-$topology of Kryszewski and Szulkin. Our result is a generalization of the classical linking theorem \cite[Theorem 2.21]{Wi}. As an application, we obtain the existence of a nontrivial solution to a system of coupled Poisson equations.
format Preprint
id arxiv_https___arxiv_org_abs_2506_17563
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A new infinite-dimensional Linking theorem with application to a system of coupled Poisson equations
Songo, Ablanvi
Colin, Fabrice
Analysis of PDEs
35J05, 35J61, 35J91, 58E05
Using the minimax technique from the critical point theory, which consists in constructing or transforming a suitable class of applications such that a critical value $c$ of a functional $f$ can be characterized as a minimax value over this class, we establish a new natural infinite-dimensional linking theorem for strongly indefinite functionals by using the $τ-$topology of Kryszewski and Szulkin. Our result is a generalization of the classical linking theorem \cite[Theorem 2.21]{Wi}. As an application, we obtain the existence of a nontrivial solution to a system of coupled Poisson equations.
title A new infinite-dimensional Linking theorem with application to a system of coupled Poisson equations
topic Analysis of PDEs
35J05, 35J61, 35J91, 58E05
url https://arxiv.org/abs/2506.17563