Chinese Quarterly Journal of Mathematics ›› 2006, Vol. 21 ›› Issue (3): 342-350.
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Abstract: We study the global umbilic submanifolds with parallel mean curvature vector fields in a Riemannian manifold with quasi constant curvature and get a local pinching theorem about the length of the second fundamental form.
Key words: constant ,  , curvature, parallel ,  , mean ,  , curvature ,  , vector ,  , fields, global ,  , umbilic points, globally geodesic submanifolds
CLC Number:
 
O186.12
WANG Lin-feng . The Pinching Theorem of Global Umbilic Submanifolds in a Riemannian Manifold with Quasi Constant Curvature[J]. Chinese Quarterly Journal of Mathematics, 2006, 21(3): 342-350.
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https://sxjk.magtechjournal.com/EN/Y2006/V21/I3/342