Geodesic
Integral representations of the $g$-Drazin inverse in $C^*$-algebras
Mathematica Bohemica, Tome 129 (2004) no. 1, pp. 71-77.

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The paper gives new integral representations of the $g$-Drazin inverse of an element $a$ of a $C^*$-algebra that require no restriction on the spectrum of $a$. The representations involve powers of $a$ and of its adjoint.
DOI : 10.21136/MB.2004.134109
Classification : 46H05, 46L05, 47A05
Keywords: $C^*$-algebra; $g$-Drazin inverse; integral representation 
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González, N. Castro; Koliha, J. J.; Wei, Yimin. Integral representations of the $g$-Drazin inverse in $C^*$-algebras. Mathematica Bohemica, Tome 129 (2004) no. 1, pp. 71-77. doi : 10.21136/MB.2004.134109. http://geodesic.mathdoc.fr/articles/10.21136/MB.2004.134109/

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