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arXiv 2004.06057math.AP
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基于容量的含一阶项和测度的分数阶椭圆型方程解存在的条件

A capacity-based condition for existence of solutions to fractional elliptic equations with first-order terms and measures

María Laura de Borbón, Pablo Ochoa

摘要:

在本文中,我们呼吁位势论提供了一个充分条件的存在性的分布解的分数椭圆问题的非线性一阶项和测量数据$ω$:$$ \left\{ \begin{array}{rcll} (-Δ)^su&=&|\nabla u|^q + ω\quad \text{in }\mathbb{R}^n,\, \,\,s \in (1/2, 1)\\u & > &0 \quad \text{in } \mathbb{R}^{n}\\\lim_{|x|\to \infty}u(x) & =& 0, \end{array} \right. $$在适当的假设下,$q$和$ω$。粗略地说,存在条件是,如果测量数据局部受Riesz分数容度控制,则方程存在整体解.我们还表明,如果一个正解存在,一定的措施$ω$将是绝对连续的相关Riesz容量,这给了部分倒数的主要结果,这项工作。最后,在不同的函数空间中,给出了$u$关于$ω$的估计.

英文摘要:

In this manuscript, we appeal to Potential Theory to provide a sufficient condition for existence of distributional solutions to fractional elliptic problems with non-linear first-order terms and measure data $ω$: $$ \left\{ \begin{array}{rcll} (-Δ)^su&=&|\nabla u|^q + ω\quad \text{in }\mathbb{R}^n,\, \,\,s \in (1/2, 1)\\u & > &0 \quad \text{in } \mathbb{R}^{n}\\\lim_{|x|\to \infty}u(x) & =& 0, \end{array} \right. $$under suitable assumptions on $q$ and $ω$. Roughly speaking, the condition for exis\-tence states that if the measure data is locally controlled by the Riesz fractional capacity, then there is a global solution for the equation. We also show that if a positive solution exists, necessarily the measure $ω$ will be absolutely continuous with respect to the associated Riesz capacity, which gives a partial reciprocal of the main result of this work. Finally, estimates of $u$ in terms of $ω$ are also given in different function spaces.

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