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arXiv 1802.08017math.DG
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关于几乎切触度量流形的分类

On the classification of almost contact metric manifolds

Francisco Martín Cabrera

摘要:

在大于3维的连通流形上,证明了不存在$132$ Chinea和González-Dávila型几乎切触度量结构.这是一个几乎接触度规结构的内禀挠率分量之间的某些相互关系的结果。这样的相互关系允许在几乎接触度量几何的背景下描述一些相关形式的外导数。

英文摘要:

On connected manifolds of dimension higher than three, the non-existence of $132$ Chinea and González-Dávila types of almost contact metric structures is proved. This is a consequence of some interrelations among components of the intrinsic torsion of an almost contact metric structure. Such interrelations allow to describe the exterior derivatives of some relevant forms in the context of almost contact metric geometry.

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