2×2上三角算子矩阵的左(右)Weyl谱的交

李愿;孙秀红;杜鸿科

数学学报 ›› 2005, Vol. 48 ›› Issue (4) : 653-660.

数学学报 ›› 2005, Vol. 48 ›› Issue (4) : 653-660. DOI: 10.12386/A2005sxxb0081
论文

2×2上三角算子矩阵的左(右)Weyl谱的交

    李愿;孙秀红;杜鸿科
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The Intersection of Left (Right) Weyl Spectrum of 2×2 Upper Triangular Operator Matrices

    Yuan LI(1), Xiu Hong SUN(2), H
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摘要

本文刻画了上三角算子矩阵M_C=(A0CB)■→■左(右)Weyl谱的交.

Abstract

Let bea2×2 upper triangular operator matrix acting on the Hilbert space. For given A and B, the sets and has been characterized completely, where σlw(T) and σrw(T) denote the left Weyl and the right Weyl spectra of an operator T, respectively.

关键词

上三角算子矩阵 / Weyl谱 / Fredholm算子

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李愿;孙秀红;杜鸿科. 2×2上三角算子矩阵的左(右)Weyl谱的交. 数学学报, 2005, 48(4): 653-660 https://doi.org/10.12386/A2005sxxb0081
Yuan LI(1), Xiu Hong SUN(2), H. The Intersection of Left (Right) Weyl Spectrum of 2×2 Upper Triangular Operator Matrices. Acta Mathematica Sinica, Chinese Series, 2005, 48(4): 653-660 https://doi.org/10.12386/A2005sxxb0081

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