Invariant subspaces in the bidisc and commutators

Invariant subspaces in the bidisc and commutators
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bidisc 和换向器中的不变子空间

DOI:
10.1017/s1446788700034856
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发表时间:
1991
期刊:
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics
影响因子:
--
通讯作者:
T. Nakazi
T. Nakazi
中科院分区:
--
文献类型:
--
作者:
T. Nakazi

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设M是双圆盘上L2(T2)的不变子空间。V1和V2分别表示M上与坐标函数z和ω的乘法算子。本文研究了M与V_1的交换子的关系,例如,当交换子是自伴的或有限秩的时,研究了M与V_1的交换子的关系。
Abstract Let M be an invariant subspace of L2 (T2) on the bidisc. V1 and V2 denote the multiplication operators on M by coordinate functions z and ω, respectively. In this paper we study the relation between M and the commutator of V1 and , For example, M is studied when the commutator is self-adjoint or of finite rank.