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arXiv 1402.4276math.FA
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关于$\mathbb{R}^n$上1-域Lipschitz常数的一些结果

Some results of the Lipschitz constant of 1-Field on $\mathbb{R}^n$

Erwan Y. Le Gruyer, Thanh Viet Phan

摘要:

研究了$1$ -场的Lipschitz常数与与该$1$ -场正则相关梯度的Lipschitz常数之间的关系.此外,我们给出了构成$1$ -域的极小Lipschitz扩张的两个显式公式.作为上述结果的结果,对于从$\mathbb{R}^m$到$\mathbb{R}^n$的连续函数的极小扩张问题,我们也给出了类似于Bauschke和Wang的显式公式.最后证明了当$1$ -域的扩张域是有限的时,$1$-域的Wells扩张绝对是极小Lipschitz扩张.我们提供了一个反例,表明这个结果一般是错误的。

英文摘要:

We study the relations between the Lipschitz constant of $1$-field and the Lipschitz constant of the gradient canonically associated with this $1$-field. Moreover, we produce two explicit formulas that make up Minimal Lipschitz extensions for $1$-field. As consequence of the previous results, for the problem of minimal extension by continuous functions from $\mathbb{R}^m$ to $\mathbb{R}^n$, we also produce analogous explicit formulas to those of Bauschke and Wang. Finally, we show that Wells's extensions of $1$-field are absolutely minimal Lipschitz extension when the domain of $1$-field to expand is finite. We provide a counter-example showing that this result is false in general.

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