Isotropic Lagrangian submanifolds in the homogeneous nearly Kahler S3 x S3

被引:7
|
作者
Hu ZeJun [1 ]
Zhang YinShan [1 ,2 ]
机构
[1] Zhengzhou Univ, Sch Math & Stat, Zhengzhou 450001, Peoples R China
[2] Henan Univ Engn, Sch Sci, Zhengzhou 451191, Peoples R China
基金
中国国家自然科学基金;
关键词
nearly Kahler S-3 x S-3; Lagrangian submanifold; isotropic submanifold; J-parallel; totally geodesic; REAL 3-DIMENSIONAL SUBMANIFOLDS; KAEHLER; 6-SPHERE; MANIFOLDS; CLASSIFICATION;
D O I
10.1007/s11425-016-0288-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show that isotropic Lagrangian submanifolds in a 6-dimensional strict nearly Kahler manifold are totally geodesic. Moreover, under some weaker conditions, a complete classification of the J-isotropic Lagrangian submanifolds in the homogeneous nearly Kahler S-3 x S-3 is also obtained. Here, a Lagrangian submanifold is called J-isotropic, if there exists a function lambda, such that g((ach)(v, v, v), Jv) = lambda holds for all unit tangent vector v.
引用
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页码:671 / 684
页数:14
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