Preprint Article Version 1 This version is not peer-reviewed

Representations of the G-drazin Inverse for Certain Anti-triangular Matrices

Version 1 : Received: 31 August 2024 / Approved: 2 September 2024 / Online: 2 September 2024 (10:52:12 CEST)

How to cite: Chen, H. Representations of the G-drazin Inverse for Certain Anti-triangular Matrices. Preprints 2024, 2024090090. https://doi.org/10.20944/preprints202409.0090.v1 Chen, H. Representations of the G-drazin Inverse for Certain Anti-triangular Matrices. Preprints 2024, 2024090090. https://doi.org/10.20944/preprints202409.0090.v1

Abstract

We provide representations for the generalized Drazin inverse of an anti-triangular matrix of the form $\left( \begin{array}{cc} a&b\\ 1&0 \end{array} \right)$ in a Banach algebra $\mathcal{A}$, under the condition that $ab=ba$. Specifically, we present the representation of Drazin inverse for these types of anti-triangular matrices in Banach algebras.

Keywords

Drazin inverse; g-Drazin inverse; anti-triangular matrix; quadratic equation; Banach algebra

Subject

Computer Science and Mathematics, Algebra and Number Theory

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