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arXiv 2103.17025math.AP
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具有整数重奇异源的Liouville方程的爆破现象

Blow-up phenomena for the Liouville equation with a singular source of integer multiplicity

Teresa D'Aprile

摘要:

本文研究了如下边值问题$$-Δu= \la a(x) e^u-4πN δ_0\;\hbox{ in } Ω,\quad u=0 \;\hbox{ on }\partial Ω,$$爆破解的存在性,其中$Ω$是$\R^2$中的光滑有界区域,使得$0\inΩ$,$a(x)$是正光滑函数,$N$是正整数,$\la>0$是小参数.这里$δ_0$定义了极点在$0$的狄拉克测度。我们发现的功能$a$和域$Ω$下,存在一个解决方案$u_\la$爆破$0$和满足$\la\into a(x)e^{u_\la} \to 8π(N+1)$作为$\la\to 0^+$。

英文摘要:

We are concerned with the existence of blowing-up solutions to the following boundary value problem $$-Δu= \la a(x) e^u-4πN δ_0\;\hbox{ in } Ω,\quad u=0 \;\hbox{ on }\partial Ω,$$ where $Ω$ is a smooth and bounded domain in $\R^2$ such that $0\inΩ$, $a(x)$ is a positive smooth function, $N$ is a positive integer and $\la>0$ is a small parameter. Here $δ_0$ defines the Dirac measure with pole at $0$. We find conditions on the function $a$ and on the domain $Ω$ under which there exists a solution $u_\la$ blowing up at $0$ and satisfying $\la\into a(x)e^{u_\la} \to 8π(N+1)$ as $\la\to 0^+$.

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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