J4 ›› 2012, Vol. 47 ›› Issue (4): 24-27.
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SHI Wei-juan, CAO Xiao-hong*
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Abstract:
An operator T is said to satisfy Browder′s theorem if σ(T)＼σw(T)π00(T), where σ(T) and σw(T) denote the spectrum and the Weyl spectrum respectively, and π00(T)=｛λ∈iso σ(T),0
Key words: Browder′s theorem; compact perturbations; semi-Fredholm domain
SHI Wei-juan, CAO Xiao-hong*. Judgement for the stability of Weyl′s theorem[J].J4, 2012, 47(4): 24-27.
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http://lxbwk.njournal.sdu.edu.cn/EN/Y2012/V47/I4/24
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