局部对称黎曼流形中的紧致极小子流形的Ricci曲率 |
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引用本文: | 纪永强,李海锋.局部对称黎曼流形中的紧致极小子流形的Ricci曲率[J].数学物理学报(A辑),2009,29(3):751-756. |
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作者姓名: | 纪永强 李海锋 |
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作者单位: | (湖州师范学院 理学院  |浙江 湖州 313000);(宁夏大学数计学院 |宁夏 银川 750021) |
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基金项目: | 浙江省自然科学基金(Y607136)资助 |
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摘 要: | 设N n+p是截面曲率KN 满足1/2 <δ≤ KN≤ 1 的n+p维局部对称完备的δ-Pinching黎曼流形. Mn是Nn+p 的紧致极小子流形. 该文讨论了这类子流形关于Ricci曲率有关的Pinching定理.
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关 键 词: | 局部对称 极小子流形 全测地 |
收稿时间: | 2007-09-17 |
修稿时间: | 2008-11-09 |
The Compact Minimal Submanifolds in Locally Symmetric Space |
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Institution: | (Department of Mathematics, Teachers College of Huzhou, Zhejiang Huzhou 313000);(Department of Mathematics and Computer,Ningxia University, Ningxia Yinchuan 750021) |
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Abstract: | Let N n+p be an n+p-dimensional locally symmetric complete Riemannian manifold with sectional curvature KN satisfies 1/2 < δ ≤ KN ≤ 1
and M n be an n-dimensinal compact minimal submanifold in N n+p. In this paper, we discuss the Pinching theorem about this sub manifold with the square of the length of the second fundamemtal form and Ricci curvature. |
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Keywords: | Locally symmetryzz Minimal submanifoldszz Totally geodesiczz |
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