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arXiv 2302.05653math.AP
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Bourgain-Brezis-Mironescu公式成立的严格条件

Sharp conditions for the validity of the Bourgain-Brezis-Mironescu formula

Elisa Davoli, Giovanni Di Fratta, Valerio Pagliari

摘要:

继Bourgain,Brezis和Mironescu的开创性论文,我们专注于一些非局部泛函的渐近行为,对于每个$u\in L^2(\mathbb{R}^N)$,被定义为加权的二重积分,平方差导数的$u$。给定一族权$\{ρ_ε\}$,$ε\in (0,1)$,我们给出了$\{ρ_ε\}$上的非局部泛函作为$ε\to 0$收敛于狄利克雷积分的一个变体的充分必要条件.最后,我们的结果和现有的文献进行了比较。

英文摘要:

Following the seminal paper by Bourgain, Brezis and Mironescu, we focus on the asymptotic behavior of some nonlocal functionals that, for each $u\in L^2(\mathbb{R}^N)$, are defined as the double integrals of weighted, squared difference quotients of $u$. Given a family of weights $\{ρ_ε\}$, $ε\in (0,1)$, we devise sufficient and necessary conditions on $\{ρ_ε\}$ for the associated nonlocal functionals to converge as $ε\to 0$ to a variant of the Dirichlet integral. Finally, some comparison between our result and the existing literature is provided.

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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