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Global Lipschitz extension preserving local constants
Rendiconti Lincei-Matematica e Applicazioni ( IF 0.5 ) Pub Date : 2021-02-15 , DOI: 10.4171/rlm/913
Simone Di Marino 1 , Nicola Gigli 2 , Aldo Pratelli 3
Affiliation  

The intent of this short note is to extend real valued Lipschitz functions on metric spaces, while locally preserving the asymptotic Lipschitz constant. We then apply this results to give a simple and direct proof of the fact that Sobolev spaces on metric measure spaces defined with a relaxation approach à la Cheeger are invariant under isomorphism class of mm-structures.

中文翻译:

全局Lipschitz扩展,保留局部常量

本简短笔记的目的是在度量空间上扩展实值Lipschitz函数,同时局部保留渐近Lipschitz常数。然后,我们使用此结果来简单而直接地证明以下事实:在毫米结构的同构类下,用松弛法àCheeger定义的度量度量空间上的Sobolev空间是不变的。
更新日期:2021-02-16
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