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arXiv 0707.4201math.DGmath.OA
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Riemannian geometry中的非交换几何和低维体积

Noncommutative geometry and lower dimensional volumes in Riemannian geometry

Raphael Ponge

摘要:

本文说明如何将任何紧致黎曼流形的“低维”体积定义为局部黎曼不变量的积分。例如,我们给意义的面积和长度,这样的流形在任何方面。我们的推理是出于一个想法的Connes,并涉及在一个重要的方式非交换几何和分析的狄拉克运营商的自旋流形。然而,低维体积的最终定义根本不涉及非交换几何或自旋结构。

英文摘要:

In this paper we explain how to define "lower dimensional'' volumes of any compact Riemannian manifold as the integrals of local Riemannian invariants. For instance we give sense to the area and the length of such a manifold in any dimension. Our reasoning is motivated by an idea of Connes and involves in an essential way noncommutative geometry and the analysis of Dirac operators on spin manifolds. However, the ultimate definitions of the lower dimensional volumes don't involve noncommutative geometry or spin structures at all.

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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