Bubbles clustered inside for almost critical problems

Fuente: arXiv
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Main Authors: Ayed, Mohamed Ben, Mehdi, Khalil El
Format: Preprint
Published: 2025
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author Ayed, Mohamed Ben
Mehdi, Khalil El
author_facet Ayed, Mohamed Ben
Mehdi, Khalil El
contents We investigate the existence of blowing-up solutions of the following almost critical problem $$ -Δu +V(x)u =u^{p-\e},\quad u>0\quad\mbox{in}\quad Ø,\quad u=0\quad\mbox{on}\quad \partialØ, $$ where $Ø$ is a bounded regular domain in $\mathbb{R}^n$, $n\geq 4$, $\varepsilon$ is a small positive parameter, $p+1=(2n)/(n-2)$ is the critical Soblolev exponent and the potential $V$ is a smooth positive function. We find solutions which exhibit bubbles clustered inside as $\e$ goes to zero. To the best of our knowledge, this is the first existence result for interior non-simple blowing-up positive solutions to Dirichlet problems in general domains. Our results are proven through delicate asymptotic estimates of the gradient of the associated Euler-Lagrange functional.
format Preprint
id arxiv_https___arxiv_org_abs_2502_03235
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bubbles clustered inside for almost critical problems
Ayed, Mohamed Ben
Mehdi, Khalil El
Analysis of PDEs
35A15, 35J20, 35J25
We investigate the existence of blowing-up solutions of the following almost critical problem $$ -Δu +V(x)u =u^{p-\e},\quad u>0\quad\mbox{in}\quad Ø,\quad u=0\quad\mbox{on}\quad \partialØ, $$ where $Ø$ is a bounded regular domain in $\mathbb{R}^n$, $n\geq 4$, $\varepsilon$ is a small positive parameter, $p+1=(2n)/(n-2)$ is the critical Soblolev exponent and the potential $V$ is a smooth positive function. We find solutions which exhibit bubbles clustered inside as $\e$ goes to zero. To the best of our knowledge, this is the first existence result for interior non-simple blowing-up positive solutions to Dirichlet problems in general domains. Our results are proven through delicate asymptotic estimates of the gradient of the associated Euler-Lagrange functional.
title Bubbles clustered inside for almost critical problems
topic Analysis of PDEs
35A15, 35J20, 35J25
url https://arxiv.org/abs/2502.03235