AIMS Mathematics | |
A semilnear singular problem for the fractional laplacian | |
Tomas Godoy1  | |
关键词: : singular elliptic problems; positive solutions; fractional Laplacian; sub andsupersolutions; | |
DOI : 10.3934/Math.2018.4.464 | |
学科分类:数学(综合) | |
来源: AIMS Press | |
【 摘 要 】
We study the problem $\left( -\Delta\right) ^{s}u=-au^{-\gamma}+\lambda h$ in $\Omega,$ $u=0$ in $\mathbb{R}^{n}\setminus\Omega,$ $u>0$ in $\Omega,$ where $0{\langle}s\langle1,$ $\Omega$ is a bounded domain in $\mathbb{R}^{n}$ with $C^{1,1}$ boundary, $a$ and $h$ are nonnegative bounded functions, $h\not \equiv 0,$ and $\lambda>0.$ We prove that if $\gamma\in\left( 0,s\right) $ then, for $\lambda$ positive and large enough, there exists a weak solution such that $c_{1}d_{\Omega}^{s}\leq u\leq c_{2}d_{\Omega}^{s}$ in $\Omega$ for some positive constants $c_{1}$ and $c_{2}.$ A somewhat more general result is also given..
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201901216729656ZK.pdf | 283KB | download |