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arXiv 1102.4073math.APmath.PR
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关于一类非局部椭圆型方程的$L_p$-估计

On $L_p$-estimates for a class of non-local elliptic equations

Hongjie Dong, Doyoon Kim

摘要:

本文研究了具有核$K(y)=a(y)/|y|^{d+σ}$的非局部椭圆算子,其中$0 < σ< 2$是常数,$a$是有界可测函数.利用纯解析方法证明了非局部算子$L$从Bessel位势空间$H^σ_p$到$L_p$的连续性,以及相应的非局部椭圆型方程在$L_p$空间中的唯一强可解性.作为副产品,我们还获得内部$L_p$-估计。我们的结果的新颖之处在于,功能$a$是不一定是齐次,定期,或对称。我们的结果的一个应用是唯一性的鞅问题的运营商$L$。

英文摘要:

We consider non-local elliptic operators with kernel $K(y)=a(y)/|y|^{d+σ}$, where $0 < σ< 2$ is a constant and $a$ is a bounded measurable function. By using a purely analytic method, we prove the continuity of the non-local operator $L$ from the Bessel potential space $H^σ_p$ to $L_p$, and the unique strong solvability of the corresponding non-local elliptic equations in $L_p$ spaces. As a byproduct, we also obtain interior $L_p$-estimates. The novelty of our results is that the function $a$ is not necessarily to be homogeneous, regular, or symmetric. An application of our result is the uniqueness for the martingale problem associated to the operator $L$.

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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