a-Weyl's theorem and perturbations

被引：16

作者：

Oudghiri, Mourad ^{[1
]}

机构：

[1] Univ Lille 1, UFR Math, CNRS, UMR 8524, F-59655 Villeneuve Dascq, France

来源：

STUDIA MATHEMATICA | 2006年 / 173卷 / 02期

关键词：

a-Weyl's theorem; perturbations;

D O I：

10.4064/sm173-2-6

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

We study the stability of a-Weyl's theorem under perturbations by operators in some known classes. We establish in particular that if T is a finite a-isoloid operator, then a-Weyl's theorem is transmitted from T to T + R for every Riesz operator R commuting with T.

引用

页码：193 / 201

页数：9

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