Degenerate or singular parabolic systems with partially DMO coefficients: the Dirichlet problem

Fuente: arXiv
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Autori principali: Dong, Hongjie, Jeon, Seongmin
Natura: Preprint
Pubblicazione: 2025
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author Dong, Hongjie
Jeon, Seongmin
author_facet Dong, Hongjie
Jeon, Seongmin
contents In this paper, we study solutions $u$ of parabolic systems in divergence form with zero Dirichlet boundary conditions in the upper-half cylinder $Q_1^+\subset \mathbb{R}^{n+1}$, where the coefficients are weighted by $x_n^α$, $α\in(-\infty,1)$. We establish higher-order boundary Schauder type estimates of $x_n^αu$ under the assumption that the coefficients have partially Dini mean oscillation. As an application, we also achieve higher-order boundary Harnack principles for degenerate or singular equations with Hölder continuous coefficients.
format Preprint
id arxiv_https___arxiv_org_abs_2507_22663
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Degenerate or singular parabolic systems with partially DMO coefficients: the Dirichlet problem
Dong, Hongjie
Jeon, Seongmin
Analysis of PDEs
35B45, 35B65, 35K65, 35K67
In this paper, we study solutions $u$ of parabolic systems in divergence form with zero Dirichlet boundary conditions in the upper-half cylinder $Q_1^+\subset \mathbb{R}^{n+1}$, where the coefficients are weighted by $x_n^α$, $α\in(-\infty,1)$. We establish higher-order boundary Schauder type estimates of $x_n^αu$ under the assumption that the coefficients have partially Dini mean oscillation. As an application, we also achieve higher-order boundary Harnack principles for degenerate or singular equations with Hölder continuous coefficients.
title Degenerate or singular parabolic systems with partially DMO coefficients: the Dirichlet problem
topic Analysis of PDEs
35B45, 35B65, 35K65, 35K67
url https://arxiv.org/abs/2507.22663