Optimal inequalities for the Casorati curvatures of submanifolds of real space forms endowed with semi-symmetric metric connections

被引:51
作者
Lee, Chul Woo [1 ]
Yoon, Dae Won [2 ,3 ]
Lee, Jae Won [4 ]
机构
[1] Kyungpook Natl Univ, Dept Math, Taegu 702701, South Korea
[2] Gyeongsang Natl Univ, Dept Math Educ, Jinju 660701, South Korea
[3] Gyeongsang Natl Univ, RINS, Jinju 660701, South Korea
[4] Busan Natl Univ Educ, Dept Math Educ, Pusan 611736, South Korea
关键词
Casorati curvature; real space form; semi-symmetric metric connection; RIEMANNIAN MANIFOLD; SLANT SUBMANIFOLDS; CHEN INEQUALITIES;
D O I
10.1186/1029-242X-2014-327
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we prove two optimal inequalities involving the intrinsic scalar curvature and extrinsic Casorati curvature of submanifolds of real space forms endowed with a semi-symmetric metric connection. Moreover, we show that in both cases, the equality at all points characterizes the invariantly quasi-umbilical submanifolds.
引用
收藏
页数:9
相关论文
共 26 条
[1]  
Albertazzi L., 2013, HDB EXPT PHENOMENOLO
[2]  
Blair D.E., 1977, Simon Stevin, V51, P3
[3]  
Casorati F., 1890, ACTA MATH, V14, P95, DOI DOI 10.1007/BF02413317
[4]   AN OPTIMAL INEQUALITY FOR CR-WARPED PRODUCTS IN COMPLEX SPACE FORMS INVOLVING CR δ-INVARIANT [J].
Chen, Bang-Yen .
INTERNATIONAL JOURNAL OF MATHEMATICS, 2012, 23 (03)
[5]   Relations between Ricci curvature and shape operator for submanifolds with arbitrary codimensions [J].
Chen, BY .
GLASGOW MATHEMATICAL JOURNAL, 1999, 41 :33-41
[6]   SOME PINCHING AND CLASSIFICATION-THEOREMS FOR MINIMAL SUBMANIFOLDS [J].
CHEN, BY .
ARCHIV DER MATHEMATIK, 1993, 60 (06) :568-578
[7]   A general inequality for submanifolds in complex-space-forms and its applications [J].
Chen, BY .
ARCHIV DER MATHEMATIK, 1996, 67 (06) :519-528
[8]  
Decu S., 2008, J. Inequal. Pure Appl. Math., V9, P79
[9]  
DECU S, 2007, B TRANSILV U BRASO B, V14, P85
[10]   On the geometry of partly symmetrical transferences [J].
Friedmann, A ;
Schouten, JA .
MATHEMATISCHE ZEITSCHRIFT, 1924, 21 :211-223