上海大学学报(自然科学版)

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Lp-质心体的反向包含关系与不等式

刘蓉1,袁俊2,冷岗松1   

  1. 1.上海大学 理学院,上海 200444;2.南京师范大学 数学与计算机科学学院,南京 210097
  • 收稿日期:2007-04-24 修回日期:1900-01-01 出版日期:2008-08-27 发布日期:2008-08-27
  • 通讯作者: 冷岗松

Reverse Inclusion Forms and Inequalities of Lp-Centroid Bodies

LIU Rong 1,YUAN Jun 2,LENG Gang-song 1   

  1. 1. College of Sciences, Shanghai University, Shanghai 200444, China;
    2. School of Mathematics and Computer Science, Nanjing Normal University, Nanjing 210097, China
  • Received:2007-04-24 Revised:1900-01-01 Online:2008-08-27 Published:2008-08-27
  • Contact: LENG Gang-song

摘要: Lp-质心体的一个包含关系式ΓKΓpKΓqKΓK(1≤p≤q≤∞)入手,研究它的反向包含关系,得到:当1≤n≤p≤q≤∞时,(p-1)cnΓK(p-1)ΓpK(q-1)ΓqK(q-1)cpΓK,其中cp,cn分别表示只与p,n有关的常数.进一步,用Lp-质心体的支撑函数估计了凸体截面体积的上下界.

关键词: Lp-质心体, 反向包含, 截面问题, 凸体

Abstract: The inclusion form of Lp-centroid bodies is introduced, and its reverse f
orm discussed. An inclusion of the form (p-1)cnΓK(p-1)ΓpK(q-1)ΓqK(q-1)cpΓK is established, where1≤n≤p≤q≤∞and cp,cn are universal constants depending only on p,n respectively. Furthermore, boundness of the volume of the central section is estimated with the support function of Lp-centroid bodies.

Key words: Lp-centroid bodies, reverse inclusion, slicing problem, convex bodies

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