Title of article
The intersection of left (right) spectra of 2 × 2 upper triangular operator matrices
Author/Authors
Yuan Li، نويسنده , , Xiu-Hong Sun، نويسنده , , Hong-Ke Du، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
10
From page
112
To page
121
Abstract
When and are given, we denote by MC the operator matrix acting on the infinite-dimensional separable Hilbert space of the form In this paper, for given A and B, the sets and are determined, where and denote, respectively, the left spectrum of an operator T, the set of all the left invertible operators and the set of all the invertible operators from into .
Keywords
Left (right) spectrum , 2 × 2 operator matrix , Perturbations of spectra
Journal title
Linear Algebra and its Applications
Serial Year
2006
Journal title
Linear Algebra and its Applications
Record number
825273
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