Inequalities for Casorati curvatures of submanifolds in real space forms

被引:35
|
作者
Zhang, Pan [1 ]
Zhang, Liang [2 ]
机构
[1] Univ Sci & Technol China, Sch Math Sci, Hefei 230026, Peoples R China
[2] Anhui Normal Univ, Sch Math & Comp Sci, Wuhu 241000, Anhui, Peoples R China
关键词
Inequalities; Casorati curvatures; real space form; SATISFYING CHENS EQUALITY; SLANT SUBMANIFOLDS; LAGRANGIAN SUBMANIFOLDS;
D O I
10.1515/advgeom-2016-0009
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Using Oprea's optimization methods on submanifolds, we give another proof of the inequalities relating the normalized delta-Casorati curvature (delta) over cap (c)(n-1) for submanifolds in real space forms. Also, inequalities relating the normalized delta-Casorati curvature delta(C)(n-1) for submanifolds in real space forms are obtained. Besides, we characterize a kind of Casorati ideal hypersurface of Euclidean 4-space. We also show that this kind of Casorati ideal hypersurface is rigid.
引用
收藏
页码:329 / 335
页数:7
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