Numerical range of composition operators on a Hilbert space of Dirichlet series

被引：5
|
作者：
Finet, C
Queffélec, H
机构：
[1] Univ Mons, Inst Math, B-7000 Mons, Belgium
[2] Univ Lille 1, UFR Math, F-59655 Villeneuve Dascq, France
来源：
LINEAR ALGEBRA AND ITS APPLICATIONS | 2004年 / 377卷
关键词：
composition operator; numerical range; Dirichlet series;
D O I：
10.1016/j.laa.2003.05.003
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We study the numerical range of composition operators on a Hilbert space of Dirichlet series with square-summable coefficients. We first describe the numerical range of "nice" composition operators (as invertible, normal and isometric ones). We also focus on the zero-inclusion question for more general symbols. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码：1 / 10
页数：10
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