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20162026
most citedThe mean transform and the mean limit of an operator

15 citations · 16 across the 6 of their papers we have counts for

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math.FA2026

Surjective maps preserving quasi-nilpotence of products of operators

Zakariae Azna, Fadil Chabbabi

Let be an infinite-dimensional complex Banach space and let the full algebra of all bounded linear operator on . In this paper, we give a complete characteri…

math.FA2026

Algebraic Direct Sums and Generalized Drazin Invertibility

Zakariae Aznay, Fadil Chabbabi

Let be a bounded linear operator on a complex Banach space . We prove that the algebraic decomposition \[ X=\K(T)\oplus \Hq(T) \] forces both summands to be closed and hence…