On the numerical index of Banach spaces

被引:19
|
作者
Ed-dari, E [1 ]
机构
[1] Univ Artois, Fac Sci Jean Perrin, F-62307 Lens, France
关键词
numerical index; numerical range;
D O I
10.1016/j.laa.2005.01.012
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We give a partial answer to the problem of computing the numerical index of l(p)-space 1 < p < infinity. Also, we give an estimate of the numerical index of the two-dimensional real space l(p)(2), 1 < p < x, For the l(p)-space. we show that its numerical index is greater than the l(p)-space one, (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:86 / 96
页数:11
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