Invariant subspaces for polynomially hyponormal operators

被引:1
|
作者
Prunaru, B [1 ]
机构
[1] ROMANIAN ACAD,MATH INST,BUCHAREST 70700,ROMANIA
关键词
hyponormal operators; dual algebras; invariant subspaces;
D O I
10.1090/S0002-9939-97-03980-4
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show that if T is a bounded operator on a Hilbert space such that p(T)*p(T)-p(T)p(T)* greater than or equal to 0 for every polynomial p, then T has a nontrivial invariant subspace.
引用
收藏
页码:1689 / 1691
页数:3
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