On the stability of the spectral properties under commuting perturbations
On the stability of the spectral properties under commuting perturbations
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通勤扰动下光谱特性的稳定性
DOI:
10.2298/fil1606511y
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发表时间:
2016-07
期刊:
影响因子:
0.8
通讯作者:
Fang Xiaochun
中科院分区:
文献类型:
--
作者:
Yan Kai;Su Weigang;Fang Xiaochun
In this paper, we examine the stability of several spectral properties under commuting perturbations. In particular, we show that if $T\in L(X)$ is an isoloid operator satisfying generalized Weyl's theorem and if $F\in L(X)$ is a power finite rank operator that commutes with $T$, then generalized Weyl's theorem holds for $T+F$. In addition, we consider the permanence of Bishop's property $(\beta)$, at a point, under commuting perturbation that is an algebraic operator.
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