Spectral continuity for operator matrices

被引：0

作者：

Djordjevic, SV

Han, YM

机构：

[1] Univ Nish, Fac Philosophy, Dept Math, YU-18000 Nish, Yugoslavia

[2] Sungkyunkwan Univ, Dept Math, Suwon 440746, South Korea

来源：

GLASGOW MATHEMATICAL JOURNAL | 2001年 / 43卷

关键词：

D O I：

暂无

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

In this paper we prove that if M-C = ((A)(0) (C)(B)) is a 2 x 2 upper tri- angular operator matrix on the Hilbert space H circle plus K and if sigma(A) boolean AND sigma(B) = 0, then sigma is continuous at A and B if and only if sigma is continuous at M-C, for every C is an element of B(K, H).

引用

页码：487 / 490

页数：4

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