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arXiv 1402.2249math.DG
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勒让德周期和曲率

Legendrian cycles and curvatures

Jan Rataj, Martina Zähle

摘要:

研究了作用在${\mathbb R}^d\times S^{d-1}$中的一般勒让德圈$T$的性质.特别是,我们给出了简短的证明某些唯一性定理的投影的第一和第二个组成部分,这样的电流:在一般情况下,$T$是由它的限制高斯曲率形式-这一结果可以追溯到傅-在全维的情况下,也限制表面积的形式。作为一个工具的一个版本的Lipschitz子流形的恒常定理。

英文摘要:

Properties of general Legendrian cycles $T$ acting in ${\mathbb R}^d\times S^{d-1}$ are studied. In particular, we give short proofs for certain uniqueness theorems with respect to the projections on the first and second component of such currents: In general, $T$ is determined by its restriction to the Gauss curvature form - this result goes back to J. Fu - and in the full-dimensional case also by the restriction to the surface area form. As a tool a version of the Constancy theorem for Lipschitz submanifolds is shown.

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