The Gelfand problem for the Infinity Laplacian

We study the asymptotic behavior as $ p\to\infty $ of the Gelfand problem $ \begin{equation*} \left\{ \begin{aligned} -&\Delta_{p} u = \lambda\,e^{u}&& \text{in}\ \Omega\subset \mathbb{R}^n\\ &u = 0 && \text{on}\ \partial\Omega. \end{aligned} \ri...

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Bibliographic Details
Main Authors: Fernando Charro, Byungjae Son, Peiyong Wang
Format: Article
Language:English
Published: AIMS Press 2023-04-01
Series:Mathematics in Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mine.202302210.3934/mbe.2022310
Description
Summary:We study the asymptotic behavior as $ p\to\infty $ of the Gelfand problem $ \begin{equation*} \left\{ \begin{aligned} -&\Delta_{p} u = \lambda\,e^{u}&& \text{in}\ \Omega\subset \mathbb{R}^n\\ &u = 0 && \text{on}\ \partial\Omega. \end{aligned} \right. \end{equation*} $ Under an appropriate rescaling on $ u $ and $ \lambda $, we prove uniform convergence of solutions of the Gelfand problem to solutions of $ \left\{ \begin{aligned} &\min\left\{|\nabla{}u|-\Lambda\,e^{u}, -\Delta_{\infty}u\right\} = 0&& \text{in}\ \Omega,\\ &u = 0\ &&\text{on}\ \partial\Omega. \end{aligned} \right. $ We discuss existence, non-existence, and multiplicity of solutions of the limit problem in terms of $ \Lambda $.
ISSN:2640-3501