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arXiv 2409.00482math.AP
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奇异椭圆型偏微分方程:全面概述

Singular Elliptic PDEs: an extensive overview

Francescantonio Oliva, Francesco Petitta

AI总结:

本文综述了具有奇异零阶项的非线性椭圆齐次边值问题,概述了基本概念与数学框架,介绍了关键的存在性、唯一性及正则性结果,并讨论了相关例子与开放问题。

摘要:

在这篇综述中,我们概述了关于未知变量具有奇异零阶项的非线性椭圆齐次边值问题,其原型方程为 $$ -Δu = {u^{-γ}} \\ \text{in}\\ Ω$$,其中 $Ω$ 是 $\mathbb{R}^N$($N\geq 2$)的有界子集,且 $γ>0$。我们首先概述了建立该问题所需的基本概念和数学框架。接着,我们介绍了新旧关键存在性和唯一性结果,以及依赖于数据正则性的正则性问题。本综述旨在做到现代、自洽且一致。此外,还讨论了一些例子和开放问题。

英文摘要:

In this survey we provide an overview of nonlinear elliptic homogeneous boundary value problems featuring singular zero-order terms with respect to the unknown variable whose prototype equation is $$ -Δu = {u^{-γ}} \ \text{in}\ Ω$$ where $Ω$ is a bounded subset of $\mathbb{R}^N$ ($N\geq 2$), and $γ>0$. We start by outlining the basic concepts and the mathematical framework needed for setting the problem. Both old and new key existence and uniqueness results are presented, alongside regularity issues depending on the regularity of the data. The presentation aims to be modern, self-contained and consistent. Some examples and open problems are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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