TWO PROBLEMS ABOUT COMPOSITION OPERATORS ON HARDY SPACE

来源 :数学物理学报（英文版） | 被引量 : 0次 | 上传用户：zoeshuwen88

【摘要】

：

In this paper, two problems about composition operator on Hardy space are considered. Firstly, a new estimation of the norm of a class of composition operators

【作者】

：

WU Shuhong WANG Maofa Liu Peid

【机构】

：

Department of Mathematics,School of Mathematics and Statistics

【出处】

：

数学物理学报（英文版）

【发表日期】

：

2004年期

【关键词】

：

Hardy space composition operator numerical range cyclic vector

【基金项目】

：

the NNSF of China

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In this paper, two problems about composition operator on Hardy space are considered. Firstly, a new estimation of the norm of a class of composition operators is given. Secondly, the cyclic behavior of the adjoint operator of a composition operator is discussed.

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TWO PROBLEMS ABOUT COMPOSITION OPERATORS ON HARDY SPACE

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