Perturbation Of Spectrums Of $2\Times 2$ Upper Triangular Operator Matrices
$2\times 2$阶上三角算子矩阵的谱扰动

Keywords: Operator matrices,point spectrum,residual spectrum,continuous spectrum,perturbation of spectrums
算子矩阵,点谱,剩余谱,连续谱,谱扰动

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Abstract:

研究了Hilbert空间H(?)K上的2×2阶上三角算子矩阵Mc=(AO CB)当A,B 给定,C为任意有界线性算子时,对Mc的点谱、剩余谱、连续谱的扰动分别给出了描述．

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