We give a very short proof of the main result of J. Benitez, A new decomposition for square matrices, Electron. J. Linear Algebra 20 (2010) 207-225. Also, we present some consequences of this result. (C) 2012 Elsevier Inc. ...
Ferreyra, David Eduardo; Orquera, V.; Thome, Néstor(Springer-Verlag, 2019-10)
[EN] In this paper, we extend the notion of weak group inverse to rectangular matrices (called WweightedWGinverse) by using the weighted core EP inverse recently investigated. This new generalized inverse also generalizes ...
We find expressions for many types of generalized inverses of an arbitrary square
complex matrix by using two representations given in [Benítez J. A new decomposition
for square matrices. Electron. J. Linear Algebra. ...
Hernández, M. V.; Lattanzi, M. B.; Thome, Néstor(Springer-Verlag, 2021-07)
[EN] This paper deals with new generalized inverses of rectangular complex matrices, namely 1MP and MP1-inverses. They are constructed from oblique projectors represented by means of inner generalized inverses, by using ...
Let R be a ring and a, b is an element of R satisfy aba = a and bab = b. We characterize when ab - ba is invertible. This study is specialized when R has an involution and when b is the Moore-Penrose inverse of a.
Ferreyra, David Eduardo; Levis, Fabian; Thome, Néstor(Elsevier, 2018-09-15)
[EN] This paper derives some further results on recent generalized inverses studied in the literature, namely core EP, DMP, and CMP inverses. Our main aim is to develop maximal classes of matrices for which their representations ...
In this work we study conditions for guaranteeing the nonnegativity of a discrete-time
singular control system. A first approach can be found in the literature for general systems, using the whole coefficient matrices. ...
Malik, Saroj B.; Thome, Néstor(National Library of Serbia, 2017)
[EN] For two given Hilbert spaces H and K and a given bounded linear operator A is an element of L(H, K) having closed range, it is well known that the Moore-Penrose inverse of A is a reflexive g-inverse G is an element ...
[EN] Let {Am}
¿
m=1
be a sequence of complex group invertible matrices that converges to
A. We characterize when A is group invertible and {A
#
m}
¿
m=1
converges to A
#
in terms of the
canonical angles between ...
[EN] In this paper, the minus matrix partial order is considered to introduce the concept of minus partial ordered control systems. The transmission of the reachability property under this binary relation is investigated. ...
Ferreyra, David Eduardo; Latanzi, Marina; Levis, Fabian; Thome, Néstor(University of Wyoming Libraries, 2019-11)
[EN] Let A and E be n x n given complex matrices. This paper provides a necessary and sufficient condition for the solvability to the matrix equation system given by AXA = AEA and A(k) EAX = XAEA(k) , for k being the index ...
Ferreyra, David Eduardo; Levis, Fabian; Thome, Néstor(Informa UK (National Inquiry Services Center), 2018)
[EN] In this paper, we revise the core EP inverse of a square matrix introduced by Prasad and Mohana in [12], Core EP inverse, Linear and Multilinear Algebra62(3) (2014), 792-802. Firstly, we give a new representation and ...
[EN] This paper deals with autonomous linear systems and the sharp partial order. Given an autonomous linear system, we find another system, which is related to the first one by means of the sharp partial order. This ...
Orquera, Valentina(Universitat Politècnica de València, 2019-10-25)
[ES] El Análisis Matricial constituye un área muy importante de la Matemática Aplicada y es una herramienta fundamental para el desarrollo de muchas aplicaciones de distintas ramas de la ciencia y la tecnología.
Algunos ...
Hongwei, J.; Benítez López, Julio(ILAS–the International Linear Algebra Society, 2015-12)
In this paper, it is given equivalent conditions for the absorption laws in terms of the Moore-Penrose, group, core inverse, core inverse dual, {1}, {1,2}, {1,3}, and {1,4} inverses in rings. The results given here extend ...
[EN] In this paper, we recall and extend some tensor operations. Then, the generalized inverse of tensors is established by using tensor equations. Moreover, we investigate the leastsquares solutions of tensor equations. ...
The inverse eigenvalue problem and the associated optimal approximation problem for
Hermitian reflexive matrices with respect to a normal {k+1}-potent matrix are considered. First, we study the existence of the solutions ...
Ferreyra, D. E.; Levis, F. E.; Priori, A. N.; Thome, Néstor(Springer-Verlag, 2021-04)
[EN] In this paper, we introduce a new generalized inverse, called weak core inverse (or, in short, WC inverse) of a complex square matrix. This new inverse extends the notion of the core inverse defined by Baksalary and ...