WEAK CONTRACTIONS AND TRACE CLASS PERTURBATIONS

被引：0

作者：

Bercovici, Hari ^{[1
]}

Timotin, Dan ^{[2
]}

机构：

[1] Indiana Univ, Dept Math, Bloomington, IN 47405 USA

[2] Inst Math, Bucharest 014700, Romania

来源：

OPERATORS AND MATRICES | 2007年 / 1卷 / 01期

基金：

美国国家科学基金会;

关键词：

Weak contraction; perturbation; trace class; characteristic function; functional calculus;

D O I：

暂无

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

An absolutely continuous contraction is said to be in the class A if it has isometric H(infinity) functional calculus. We present evidence in favor of the conjecture that the class A is invariant under trace-class perturbations.

引用

页码：71 / 85

页数：15

共 25 条

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[10] ONE DIMENSIONAL PERTURBATIONS OF RESTRICTED SHIFTS
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