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arXiv math/0602620math.DG
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Projective Geometry I:原理和性质

Projective Geometry I: Principles and Properties

Stuart Armstrong

摘要:

本文及其后续工作的目的是引入并分类投射Tractor联络的完整代数。在简要的历史背景之后,本文介绍和分析了投影嘉当和拖拉机联络,它们可以保留的各种结构,以及它们的几何解释。Tractor丛的保留子丛生成具有Ricci平坦叶的叶理。接触结构和爱因斯坦结构来自于拖拉机完整性的其他约化,就像U(1)和较小维数流形上的$Sp(1, \mathbb{H})$丛一样。

英文摘要:

The aim of this paper and its sequel is to introduce and classify the holonomy algebras of the projective Tractor connection. After a brief historical background, this paper presents and analyses the projective Cartan and Tractor connections, the various structures they can preserve, and their geometric interpretations. Preserved subbundles of the Tractor bundle generate foliations with Ricci-flat leaves. Contact- and Einstein-structures arise from other reductions of the Tractor holonomy, as do U(1) and $Sp(1, \mathbb{H})$ bundles over a manifold of smaller dimension.

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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