Boundary blow-up and degenerate equations

Fuente: arXiv
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Autor principal: Kichenassamy, Satyanad
Formato: Preprint
Publicado: 2025
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author Kichenassamy, Satyanad
author_facet Kichenassamy, Satyanad
contents Let $Ω\subset\mathbb R^2$ be a bounded domain of class $C^{2+α}$, $0<α<1$. We show that if $u$ is the solution of $Δu = 4\exp(2u)$ which tends to $+\infty$ as $(x,y)\to\partialΩ$, then the hyperbolic radius $v=\exp(-u)$ is also of class $C^{2+α}$ up to the boundary. The proof relies on new Schauder estimates for degenerate elliptic equations of Fuchsian type.
format Preprint
id arxiv_https___arxiv_org_abs_2507_02485
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Boundary blow-up and degenerate equations
Kichenassamy, Satyanad
Complex Variables
Differential Geometry
Functional Analysis
Let $Ω\subset\mathbb R^2$ be a bounded domain of class $C^{2+α}$, $0<α<1$. We show that if $u$ is the solution of $Δu = 4\exp(2u)$ which tends to $+\infty$ as $(x,y)\to\partialΩ$, then the hyperbolic radius $v=\exp(-u)$ is also of class $C^{2+α}$ up to the boundary. The proof relies on new Schauder estimates for degenerate elliptic equations of Fuchsian type.
title Boundary blow-up and degenerate equations
topic Complex Variables
Differential Geometry
Functional Analysis
url https://arxiv.org/abs/2507.02485