上海大学学报(自然科学版) ›› 2010, Vol. 16 ›› Issue (4): 380-382.

• 数理化科学 • 上一篇    下一篇

John基等价条件的推广

郑敏,冷岗松   

  1. (上海大学 理学院,上海 200444)
  • 收稿日期:2009-05-25 出版日期:2010-08-30 发布日期:2010-08-30
  • 通讯作者: 冷岗松(1961~),男,教授,博士生导师,博士,研究方向为凸几何、几何分析. E-mail:gleng@staff.shu.edu.cn

Generalization for Equivalence of John Bases

ZHENG Min,LENG Gang-song   

  1. (College of Sciences, Shanghai University, Shanghai 200444, China)
  • Received:2009-05-25 Online:2010-08-30 Published:2010-08-30

摘要:

John基在凸体几何分析中占有重要地位,是研究凸体包含最大体积椭球的基础.将John基的3个等价条件推广到双John基,并给出证明.

关键词:  John基;接触对;极体;双John基

Abstract:

John bases occupy an important place in convex geometry, and are fundamental in studying maximal ellipsoid contained in convex. In this paper, we extend John bases to generalized John bases and present the proof.

Key words: John bases; contact pair; polar; double John bases

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