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arXiv 2002.02201math.AP
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关于Hardy势梯度增长的分数阶KPZ方程

Fractional KPZ equations with critical growth in the gradient respect to Hardy potential

Boumediene Abdellaoui, Ireneo Peral, Ana Primo, Fernando Soria

摘要:

本文研究了分数阶拟线性问题$$ \left\{ \begin{array}{rcll} (-Δ)^s u &=&λ\dfrac{u}{|x|^{2s}}+ |\nabla u|^{p}+ μf &\inn Ω,\\ u&>&0 & \innΩ,\\ u&=&0 & \inn(\mathbb{R}^N\setminusΩ), \end{array}\right. $$正解的存在性,其中$Ω$是$\mathbb{R}^N$,$N> 2s, μ>0$,$\frac{1}{2}<s<1$中的$C^{1,1}$有界区域,$0<λ<Λ_{N,s}$定义在(3)中.我们假设$f$是一个非负的功能,额外的假设。正如我们将看到的,关于$λ=0$案例存在深刻的差异。更准确地说,如果$λ>0$,存在一个临界指数$p_{+}(λ, s)$,使得对于$p> p_{+}(λ,s)$没有正解。此外,$p_{+}(λ,s)$是最佳的意义上说,如果$p<p_{+}(λ,s)$存在一个正的解决方案,适当的数据和$μ$足够小。

英文摘要:

In this work we study the existence of positive solution to the fractional quasilinear problem, $$ \left\{ \begin{array}{rcll} (-Δ)^s u &=&λ\dfrac{u}{|x|^{2s}}+ |\nabla u|^{p}+ μf &\inn Ω,\\ u&>&0 & \innΩ,\\ u&=&0 & \inn(\mathbb{R}^N\setminusΩ), \end{array}\right. $$ where $Ω$ is a $C^{1,1}$ bounded domain in $\mathbb{R}^N$, $N> 2s, μ>0$, $\frac{1}{2}<s<1$, and $0<λ<Λ_{N,s}$ is defined in (3) . We assume that $f$ is a non-negative function with additional hypotheses. As we will see, there are deep differences with respect to the case $λ=0$. More precisely, If $λ>0$, there exists a critical exponent $p_{+}(λ, s)$ such that for $p> p_{+}(λ,s)$ there is no positive solution. Moreover, $p_{+}(λ,s)$ is optimal in the sense that, if $p<p_{+}(λ,s)$ there exists a positive solution for suitable data and $μ$ sufficiently small.

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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