详细信息
文献类型:期刊文献
中文题名:带零权的单侧加权移位的交换子
英文题名:Commutant of Unilateral Weighted Shift with Weight Zero
作者:靳勇飞[1];王宗尧[1]
机构:[1]华东理工大学数学系,上海200237
年份:2005
卷号:31
期号:5
起止页码:662
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;EI(收录号:2005479497657);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:单侧加权移位;交换子;Jacobson根;交换性
外文关键词:unilateral weighted shift ; commutant ; Jacobson root ; commutativity
摘要:讨论了带0权的单侧加权移位算子T的交换子{T}′的交换性和{T}/′rad{T}′的交换性与算子的权数序列之间的关系。给出了空间有限维时{T}/′rad{T}′交换的充要条件,而后给出了空间无穷维时{T}/′rad{T}′不交换的一个充分条件。
This paper discusses the commutativity of the commutant {T}^' of unilateral weighted shift T which has 0 weights, and the commutativity of {T}^'/rad {T}^'. This paper provides a sufficient and nec- essary condition for the commutativity of {T}^'/rad {T}^' when the space is finite dimentsion, and also proves a necessary condition for it when the space is infinite dimension in terms of the weights.
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