数学物理学报(英文版) ›› 2018, Vol. 38 ›› Issue (1): 151-156.doi: 10.1016/S0252-9602(17)30122-4

• 论文 • 上一篇    下一篇

YET ON LINEAR STRUCTURES OF NORM-ATTAINING FUNCTIONALS ON ASPLUND SPACES

程立新, 罗思捷   

  1. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
  • 收稿日期:2016-12-12 修回日期:2017-03-13 出版日期:2018-02-25 发布日期:2018-02-25
  • 通讯作者: Sijie LUO E-mail:winbestlsj@163.com
  • 作者简介:Lixin CHENG,E-mail:lxcheng@xmu.edu.cn
  • 基金资助:

    This work is partially supported by NSFC, grant 11371296, and by PhD Programs Foundation of MEC, Grant 20130121110032.

YET ON LINEAR STRUCTURES OF NORM-ATTAINING FUNCTIONALS ON ASPLUND SPACES

Lixin CHENG, Sijie LUO   

  1. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
  • Received:2016-12-12 Revised:2017-03-13 Online:2018-02-25 Published:2018-02-25
  • Contact: Sijie LUO E-mail:winbestlsj@163.com
  • Supported by:

    This work is partially supported by NSFC, grant 11371296, and by PhD Programs Foundation of MEC, Grant 20130121110032.

摘要:

In this paper, we show that if an Asplund space X is either a Banach lattice or a quotient space of C(K), then it can be equivalently renormed so that the set of normattaining functionals contains an infinite dimensional closed subspace of X* if and only if X* contains an infinite dimensional reflexive subspace, which gives a partial answer to a question of Bandyopadhyay and Godefroy.

关键词: norm-attaining functional, Asplund space, Banach lattice, reflexive subspace, Banach space

Abstract:

In this paper, we show that if an Asplund space X is either a Banach lattice or a quotient space of C(K), then it can be equivalently renormed so that the set of normattaining functionals contains an infinite dimensional closed subspace of X* if and only if X* contains an infinite dimensional reflexive subspace, which gives a partial answer to a question of Bandyopadhyay and Godefroy.

Key words: norm-attaining functional, Asplund space, Banach lattice, reflexive subspace, Banach space