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arXiv 2610.11292math.DG

次黎曼测地线轨道流形的结构

On the Structure of Sub-Riemannian Geodesic Orbit Manifolds

  • Liaoning Normal University(辽宁师范大学)
  • Ningbo University(宁波大学)
  • Southeast University(东南大学)
  • Shandong University of Science and Technology(山东科技大学)

机构由 AI 辅助整理,请以论文原文为准。

Huihui An, Zaili Yan, Hui Zhang, Shaoxiang Zhang

AI总结:

该研究探讨齐次次黎曼流形的结构,证明其满足Goh条件且无严格异常长度极小化器,并分类了特定紧致连通单连通次黎曼测地线轨道流形,推广了相关黎曼分类成果。

AI中文摘要:

我们研究齐次次黎曼流形,其正规极值是作用群的单参数子群的轨道。首个主要结果表明,每个次黎曼测地线轨道流形都满足Goh条件,因此不存在严格异常的长度极小化器;第二个主要结果对所有具有非阿贝尔迷向群的紧致、连通、单连通次黎曼测地线轨道流形进行了分类,从而推广了Chen、Nikolayevsky和Nikonorov的黎曼分类。

英文摘要:

We study homogeneous sub-Riemannian manifolds whose normal extremals are orbits of one-parameter subgroups of the acting group. Our first main result shows that every sub-Riemannian geodesic orbit manifold satisfies the Goh condition and consequently admits no strictly abnormal length minimizers. Our second main result classifies all compact, connected, simply connected sub-Riemannian geodesic orbit manifolds with nonabelian simple isotropy group, thereby extending the Riemannian classification of Chen, Nikolayevsky and Nikonorov.

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