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The Drazin Inverse of Generalized-Aluthge Transform
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O177.1

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    Abstract:

    设H为无限维Hilbert空间,T为H中的有界线性算子,T~λ,T~λ(*)分别表示T的广义Aluthge变换和广义*-Aluthge变换,其中λ∈(0,1)。主要利用分块算子矩阵的方法研究了T~λ和T~λ(*)的Drazin逆及Moore-Penrose逆,证明了对任意复数μ有:①T~λ-μ Drazin可逆当且仅当T~λ(*)-μ Drazin可逆;②T~λ-μ Moore-Penrose可逆当且仅当T~λ(*)-μ Moore-Penrose可逆。同时给出了这2个算子Drazin逆及Moore-Penrose逆的相互关系的刻画。

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  • Received:
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  • Online: November 17,2015
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