殆复流形超曲面上的切触结构  

THE CONTACT STRUCTURE ON A HYPERSURFACE OF A ALMOST COMPLEX MANIFOLD

作　　者：郭震 

机构地区：[1]云南师大数学系

出　　处：《云南师范大学学报（自然科学版）》1989年第2期15-18,共4页Journal of Yunnan Normal University:Natural Sciences Edition

摘　　要：本文在殆复流形(■,J)的超曲面上给出一个殆切触结构。对(■,J)的DJ不变超曲面,给出它具K一切触结构、Sasaki结构的充要条件。当(■,J)为nearly Kaehler流形时,我们也找到了其超曲面具正规切触结构的充要条件。In this paper, we find a almost contact structure on a hypersurface M of almost complex manifold (M,J), and find a sufficient and necessary condition that a DJ invariant hypersurface M is a k-contact manifold、a Sasaki manifold. Let M be a nearly complex manifold, we find a necessary and sufficient condition that M is normal.

关 键 词：殆复流形 殆切触结构 

分 类 号：N55[自然科学总论]