We obtain an inequality in Sm×R and Hm×R which is similar to DDVV conjecture.As an application,we show that a minimal submanifold in H m×R with nonnegative scalar curvature must be a surface of the type...We obtain an inequality in Sm×R and Hm×R which is similar to DDVV conjecture.As an application,we show that a minimal submanifold in H m×R with nonnegative scalar curvature must be a surface of the type γ×R,where γ is a geodesic in H m.In addition,we get a pinching theorem in Sm×R.展开更多
基金Acknowledgements The author wishes to express his gratitude to Professors Jianzhong Pan, Jianming Yu, and Faen Wu for helpful advice. The author also thanks the referees' careful reading and helpful suggestions.
基金This work was supported by National Natural Science Foundation of China (Grant No. 11001016), the Specialized Research Fhnd for the Doctoral Program of Higher Education (Grant No. 20100003120003), and the Program for Changjiang Scholars and Innovative Research Team in University. It is our great pleasure to thank Professor Zizhou Tang for his guidance and support, as well as Professors Haizhong Li, Jiagui Peng and Changping Wang for their helpful discussions and useful suggestions during the preparation of this paper.
文摘在这份报纸,我们为总数建立第一个变化公式和它的 Euler-Lagrange 方程第2p-吝啬的弯曲功能的 $\mathcal { M }_{ 2p }在一般 Riemannian 的 submanifold M n 的$ 歧管为 $p =的 N n+m 0,1 , \ldots , \left [{ \tfrac { n }{ 2 }} \right ]$。作为一个例子,我们证明在复杂射影的空格的那关上的复杂 submanifolds 是功能的 $\mathcal 的批评的点 { M }_{ 2p }$ ,相对叫了 2p-minimal submanifolds,为所有 p。最后,我们讨论关系在之间相对,在真实空间的 2p-minimal submanifolds 和严峻的 submanifolds 形成,以及一个特殊变化问题。
基金Acknowledgements This work was supported by National Natural Science Foundation of China (Grant No 10871149) and Research Fund for the Doctoral Program of Higher Education of China (Grant No. 200804860046) The authors cordially thank the referees for their careful reading and helpful comments.
文摘We obtain an inequality in Sm×R and Hm×R which is similar to DDVV conjecture.As an application,we show that a minimal submanifold in H m×R with nonnegative scalar curvature must be a surface of the type γ×R,where γ is a geodesic in H m.In addition,we get a pinching theorem in Sm×R.