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arXiv 0801.3220math.DGgr-qc
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Finsler几何联络理论的整体方法

A Global Approach to the Theory of Connections in Finsler Geometry

Nabil L. Youssef, S. H. Abed, A. Soleiman

摘要:

采用拉回方法的整体Finsler几何,本文的目的是提供内在的(坐标自由)证明的存在性和唯一性定理的Chern(Rund)和Hashiguchi连接Finsler流形。为了实现这一点,我们介绍和调查的概念,半稀疏和非线性连接与一个给定的正则连接,在拉回束。此外,对于Chern(Rund)联络和Hashiguchi联络,相应的半喷雾与正则喷雾一致,相应的非线性联络与Barthel联络一致.推导出了这些联系和Cartan联系的显式内在表达式。虽然我们的调查是完全全球性的,所获得的结果的局部表达式,计算时,与现有的经典局部结果相吻合。我们提供,为了完整性和比较的原因,两个附录,其中一个提出了一个全球性的调查典型的线性连接在芬斯勒几何和其他提出本地调查我们的全球性的方法。

英文摘要:

Adopting the pullback approach to global Finsler geometry, the aim of the present paper is to provide intrinsic (coordinate-free) proofs of the existence and uniqueness theorems for the Chern (Rund) and Hashiguchi connections on a Finsler manifold. To accomplish this, we introduce and investigate the notions of semispray and nonlinear connection associated with a given regular connection, in the pullback bundle. Moreover, it is shown that for the the Chern (Rund) and Hashiguchi connections, the associated semispray coincides with the canonical spray and the associated nonlinear connection coincides with the Barthel connection. Explicit intrinsic expressions relating these connections and the Cartan connection are deduced. Although our investigation is entirely global, the local expressions of the obtained results, when calculated, coincide with the existing classical local results. We provide, for the sake of completeness and for comparison reasons, two appendices, one of them presenting a global survey of canonical linear connections in Finsler geometry and the other presenting a local survey of our global approach.

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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