arXiv subjects

Julio Benítez

Publications and source records attributed to Julio Benítez.

3 recordsLinked to original sources

arXiv2025

A study on the 1-$Γ$ inverse of tensors via the M-Product

In this paper, we will study the issue about the 1-$Γ$ inverse, where $Γ\in\{†, D, *\}$, via the M-product. The aim of the current study is threefold. Firstly, the definition and characteristic of the 1-$Γ$ inverse is introduced. Equivalent conditions for a tensor to be a 1-$Γ$ inverse are established. Secondly, using the singular value decomposition, the corresponding numerical algorithms for computing the 1-$Γ$ inverse are given. Finally, the solutions of the multilinear equations related 1-$Γ$ inverse are studied, and numerical calculations are given to verify our conclusions.

math.NA↗

arXiv2017

Generalized core inverses of matrices

In this paper, we introduce two new generalized inverses of matrices, namely, the $\bra{i}{m}$-core inverse and the $\pare{j}{m}$-core inverse. The $\bra{i}{m}$-core inverse of a complex matrix extends the notions of the core inverse defined by Baksalary and Trenkler \cite{BT} and the core-EP inverse defined by Manjunatha Prasad and Mohana \cite{MM}. The $\pare{j}{m}$-core inverse of a complex matrix extends the notions of the core inverse and the ${\rm DMP}$-inverse defined by Malik and Thome \cite{MT}. Moreover, the formulae and properties of these two new concepts are investigated by using matrix decompositions and matrix powers.

math.RA↗

arXiv2017

On the continuity and differentiability of the (dual) core inverse in C*-algebras

The continuity of the core inverse and the dual core inverse is studied in the setting of C*-algebras. Later, this study is specialized to the case of bounded Hilbert space operators and to complex matrices. In addition, the differentiability of these generalized inverses is studied in the context of C*-algebras.

math.OA↗