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伪黎曼空间型的2-调和类空子流形

朱业成, 宋卫东   

  1. 安徽师范大学 数学计算机科学学院, 安徽省 芜湖 241000
  • 收稿日期:2006-01-10 修回日期:1900-01-01 出版日期:2006-11-26 发布日期:2006-08-26
  • 通讯作者: 宋卫东

2-Harmonic Spacelike Submanifolds in a PseudoRiemannian Space Form

ZHU Yecheng, SONG Weidong   

  1. College of Mathematics and Computer Science, Anhui Normal University, Wuhu 241000, Anhui Province, China
  • Received:2006-01-10 Revised:1900-01-01 Online:2006-11-26 Published:2006-08-26
  • Contact: SONG Weidong

摘要: 研究伪黎曼空间型的2-调和类空子流形, 通过计算, 获得了这种子流形上一个Simons型积分不等式. 对该子流形进行一定限制, 使其成为极大类空子流形, 再利用Simons型积分不等式, 分别讨论了外围空间伪黎曼空间型截面曲率为正、负或零时子流形的各种性质, 得到了一系列结果.

关键词: 2-调和映射, 全测地, 类空子流形

Abstract: 2-Harmonic spacelike submanifolds in a pseudoRiemannian space form was studied, and a Simons form inequality of integration was obtained via calculations. After the submanifold was restricted it became a maximal spacelike submanifold, and the Simons form integral inequality was used to discuss the submanifold properties when the sectional curvature of the pseudoRiemannian space form is positive, negative and zero, respectively, and some results were obtained.

Key words: 2-harmonic, totally geodesic, spacelike submanifold

中图分类号: 

  • O186