| 具有平行中曲率向量的子流形 |
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| 引用本文： | 孙弘安.具有平行中曲率向量的子流形[J].南方冶金学院学报,1990(4). |
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| 作者姓名： | 孙弘安 |
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| 作者单位： | 南方冶金学院基础部 |
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| 摘 要： | 本文讨论了局部对称共形平坦黎曼流形中具有平行中曲率向量子流形的截面曲率和第二基本形式长度平方的Pinching问题.
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| 关 键 词： | 共形平坦 平行 中曲率 |
The Submanifold with Parallel Mean Curvature |
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| Sun Hongan.The Submanifold with Parallel Mean Curvature[J].Journal of Southern Institute of Metallurgy,1990(4). |
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| Authors: | Sun Hongan |
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| Affiliation: | Department of Basic Courses |
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| Abstract: | In this paper, we discuss pinching questions of the length of the second fundamental form and the sectional curvatures of submanifolds with parallel mean curvature in a locally symmetric and conformally flat Riemannian manifold. |
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| Keywords: | conformally flat parallel mean curvature |
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