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算子权移位的换位代数的交换性(英文)
Commutativity of the Commutant of Operator Weighted Shifts
【摘要】 令T是以{Wk}∞k=1B(Cn)为权序列的内射算子权移位.设T是强不可约的,而且sup1k<∞‖W-1k‖<+∞.用A′(T)表示T的换位代数,radA′(T)表示A′(T)的Jacobson根.本文刻划了radA′(T)并且证明了商代数A′(T)/radA′(T)是交换的.
【Abstract】 Let T be an injective operator weighted shift with the weight sequence {Wk}∞k=1B(Cn). Suppose that T is strongly irreducible and (sup)1k<∞‖W-1k‖<+∞. Let A′(T) be the commutant of T, and rad A′(T) the Jacobson radical of A′(T). In this paper, we characterize rad A′(T) and prove that the quotient A′(T)/rad A′(T) is commutative.
【关键词】 算子权移位;
强不可约;
换位代数;
Jacobson根;
【Key words】 operator weighted shift; strongly irreducible; commutant; jacobson radical;
【Key words】 operator weighted shift; strongly irreducible; commutant; jacobson radical;
【基金】 SupportedbyNSFofChina(10371049)
- 【文献出处】 应用泛函分析学报 ,Acta Analysis Functionalis Applicata , 编辑部邮箱 ,2005年01期
- 【分类号】O177
- 【下载频次】26