Several Remarks on Ball-Coverings of Normed Spaces  

作　　者：Li Xin CHENG Zheng Hua LUO Xue Fang LIU Wen ZHANG 

机构地区：[1]Department of Mathematics, Xiamen University, Xiamen 361005, P. R. China

出　　处：《Acta Mathematica Sinica,English Series》2010年第9期1667-1672,共6页数学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China (Grant No. 10771175)

摘　　要：This paper presents two counterexamples about ball-coverings of Banach spaces and shows a new characterization of uniformly non-square Banach spaces via ball-coverings.This paper presents two counterexamples about ball-coverings of Banach spaces and shows a new characterization of uniformly non-square Banach spaces via ball-coverings.

关 键 词：Uniformly non-square BALL-COVERING Banach space 

分 类 号：O177.3[理学—数学] O177.2[理学—基础数学]