Configuration spaces and multiple positive solutions to a singularly perturbed elliptic system

Fuente: arXiv
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Autores principales: Clapp, Mónica, Saldaña, Alberto, Szulkin, Andrzej
Formato: Preprint
Publicado: 2023
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author Clapp, Mónica
Saldaña, Alberto
Szulkin, Andrzej
author_facet Clapp, Mónica
Saldaña, Alberto
Szulkin, Andrzej
contents We consider a weakly coupled singularly perturbed variational elliptic system in a bounded smooth domain with Dirichlet boundary conditions. We show that, in the competitive regime, the number of fully nontrivial solutions with nonnegative components increases with the number of equations. Our proofs use a combination of four key elements: a convenient variational approach, the asymptotic behavior of solutions (concentration), the Lusternik-Schnirelman theory, and new estimates on the category of suitable configuration spaces.
format Preprint
id arxiv_https___arxiv_org_abs_2306_12580
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Configuration spaces and multiple positive solutions to a singularly perturbed elliptic system
Clapp, Mónica
Saldaña, Alberto
Szulkin, Andrzej
Analysis of PDEs
35J50, 35B06, 35B40, 35B09, 35B25, 55M30, 55R80
We consider a weakly coupled singularly perturbed variational elliptic system in a bounded smooth domain with Dirichlet boundary conditions. We show that, in the competitive regime, the number of fully nontrivial solutions with nonnegative components increases with the number of equations. Our proofs use a combination of four key elements: a convenient variational approach, the asymptotic behavior of solutions (concentration), the Lusternik-Schnirelman theory, and new estimates on the category of suitable configuration spaces.
title Configuration spaces and multiple positive solutions to a singularly perturbed elliptic system
topic Analysis of PDEs
35J50, 35B06, 35B40, 35B09, 35B25, 55M30, 55R80
url https://arxiv.org/abs/2306.12580