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数学与物理学

复Grassman流形中齐性三维球面的一种构造

  • 何思 ,
  • 肖良
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  • 中国科学院大学数学科学学院, 北京 100049

收稿日期: 2014-11-14

  修回日期: 2015-03-17

  网络出版日期: 2016-01-15

基金资助

国家自然科学基金(11331002)资助

A method for construction of homogeneous 3-spheres in complex Grassmanians

  • HE Si ,
  • XIAO Liang
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  • School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2014-11-14

  Revised date: 2015-03-17

  Online published: 2016-01-15

摘要

证明复Grassman流形中的齐性三维球面可以作为一个三维的ρ(SU(2))轨道,然后利用SU(2)和SU(2)×SU(2) 的表示理论给出具体构造这种齐性三维球面的方法。

本文引用格式

何思 , 肖良 . 复Grassman流形中齐性三维球面的一种构造[J]. 中国科学院大学学报, 2016 , 33(1) : 9 -15 . DOI: 10.7523/j.issn.2095-6134.2016.01.002

Abstract

In this paper, we show that any homogeneous 3-sphere in complex Grassmanians must be a 3-dimensional ρ(SU(2))-orbit in complex Grassmanians. Then we use the representation theory of SU(2) and SU(2)×SU(2) to present a method for the construction of homogeneous 3-spheres in complex Grassmanians.

参考文献

[1] Bando S, Ohnita Y.Minimal 2-spheres with constant curvature in CPn[J].J Math Soc Japan,1987,39(3):477-487.
[2] Li H Z,Wang C P,Wu F E. The classification of homogeneous 2-spheres in CPn[J]. Asian Journal of Mathematics,2001,5(1):93-108.
[3] Fei J, Jiao X X, Xiao L, et al. On the classification of homogeneous 2-spheres in complex Grassmannians[J]. Osaka J Math, 2013,50(1):135-152.
[4] Hall B C. Lie groups, Lie algebras, and representations: an elementary introduction[M]. GTM 222, New York: Springer-Verlag,2003.

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