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arXiv 2609.22263math.DG

关于Kenmotsu流形的部分反不变子流形的一个注记

A Note on Partially Anti-invariant Submanifolds of Kenmotsu Manifolds

Muhammad Shuaib, Cenap Ozel, Meraj A. Khan, Yakup Yildirim

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中文总结 AI 辅助

本文研究Kenmotsu流形的部分反不变子流形,考察分布可积性、全测地叶理条件,并在平行结构张量下探讨几何性质,利用曲率张量推导几何刻画,并给出全脐情形及不等式。

中文摘要 AI 辅助

本文引入并研究了Kenmotsu流形的部分反不变子流形。我们考察了所涉及分布的 integrability(可积性),并获得了确保诱导叶理是全测地的条件。当相关的结构张量N和P平行时,我们进一步探讨了这些分布的几何性质。通过利用Kenmotsu流形的曲率张量以及具有常ψ截面曲率的Kenmotsu空间形式的性质,我们推导出部分反不变子流形的各种几何刻画。此外,我们还刻画了全脐部分反不变子流形,并为Kenmotsu空间形式的部分反不变子流形建立了一个不等式,包括等式情形的刻画。

英文摘要

In this paper, we introduce and investigate partially antiinvariant submanifolds of Kenmotsu manifolds. The integrability of the involved distributions is examined, and conditions ensuring that the induced foliations are totally geodesic are obtained. We further explore the geometric properties of these distributions when the associated structure tensors N and P are parallel. By making use of the curvature tensor of Kenmotsu manifolds and the properties of Kenmotsu space forms with constant psi sectional curvature, we derive various geometric characterizations of partially anti-invariant submanifolds. In addition, we characterize totally umbilical partially anti-invariant submanifolds and establish an inequality for partially anti invariant submanifolds of Kenmotsu space forms, including the characterization of the equality case.

发表机构

  • Lovely Professional University(隆维专业大学)
  • King Abdudlaziz University(阿卜杜勒阿齐兹国王大学)
  • Imam Muhammad Ibn Saud Islamic University(伊玛目穆罕默德·本·沙特伊斯兰大学)
  • Biruni University(比尔尼大学)
  • Near East University(近东大学)

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