有界线性算子的点谱和剩余谱分别可进一步细分为两类:σ_(p1),σ_(p2)和σ_(r1),σ_(r2).设H,K为无穷维可分的Hilbert空间,本文将对于给定的A∈B(H),B∈B(K),给出了缺项算子M_C=(AC0B)关于分类后所得四种谱的扰动结果.
The point spectrum and the residual spectrum are divided into two kinds,respectively, that isσp1,σP2 andσr1,σr2.In this paper,let H and K be separable Hilbert spaces.When A∈B(H) and B∈B(K) are given,we get results on perturbation of this four kinds spectrum of MC,where MC =(AC0B).