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arXiv 1407.3489math.FA
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Cheeger能量的张量化、图的空间$H^{1,1}$和面积公式

Tensorization of Cheeger energies, the space $H^{1,1}$ and the area formula for graphs

Luigi Ambrosio, Andrea Pinamonti, Gareth Speight

摘要:

首先详细研究了度量测度空间$(X,d,m)$中弱梯度的张量化性质。然后,我们比较了索伯列夫空间$H^{1,1}(X,d,m)$和指数为1的弱梯度的潜在不同的概念。最后,我们应用这些结果比较面积泛函$\int\sqrt{1+|\nabla f|_w^2}\,dm$与$f$的子图的周长,在相同的精神,作为经典理论。

英文摘要:

First we study in detail the tensorization properties of weak gradients in metric measure spaces $(X,d,m)$. Then, we compare potentially different notions of Sobolev space $H^{1,1}(X,d,m)$ and of weak gradient with exponent 1. Eventually we apply these results to compare the area functional $\int\sqrt{1+|\nabla f|_w^2}\,dm$ with the perimeter of the subgraph of $f$, in the same spirit as the classical theory.

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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