This paper studies the Schouten tensor on the locally conformally flat manifold, and gets some sufficient conditions for m to be the space of constant curvature, which improves the known results.
对局部对称共形平坦黎曼流形中具有平坦法丛的极小子流形作了一些讨论，得到了极小子流形是全测地的两个充分条件。
At last the complete hypersurface with constant mean curvature in the quasi constant curvature space is investigated, some characterization of totally umbilical hypersurfaces are obtained.
最后研究了常平均曲率完备超曲面，得到了这类超曲面全脐的一个结果。
Complete classification of affine spheres with constant cross section curvature in 4-dimensional affine space is given.
本文给出了四维仿射空间中具有常截面曲率的仿射球的完全分类。
Complete classification of affine spheres with constant cross section curvature in 4-dimensional affine space is given.
本文给出了四维仿射空间中具有常截面曲率的仿射球的完全分类。
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