6 papers
Parametrizing -weighted BT inverse to obtain the -weighted -BT inverse
D. E. Ferreyra, N. Thome, C. Torigino
The core-EP and BT inverses for rectangular matrices were studied recently in the literature. The main aim of this paper is to unify both concepts by means of a new kind of general…
The -weighted -weak core inverse
D. E. Ferreyra, D. Mosic
Recently, Malik and Ferreyra introduced the -weak core inverse for complex square matrices which generalizes the core-EP inverse, the WC inverse, and therefore the core inverse.…
A new generalized inverse for rectangular matrices. A general approach
D. E. Ferreyra, F. E. Levis, R. P. Moas +1
Rao and Mitra in 1972 introduced two different types of constraints to extend the concept of Bott-Duffin inverse and defined a new constrained inverse. Mary in 2011 defined the inv…
New characterizations of the diamond partial order
D. E. Ferreyra, F. E. Levis, G. Maharana +1
Baksalary and Hauke introduced the diamond partial order in 1990, which we revisit in this paper. This order was defined on the set of rectangular matrices and is the same as the s…
Extending EP matrices by means of recent generalized inverses
D. E. Ferreyra, F. E. Levis, A. N. Priori +1
It is well known that a square complex matrix is called EP if it commutes with its Moore-Penrose inverse. In this paper, new classes of matrices which extend this concept are chara…
One sided Star and Core orthogonality of matrices
D. E. Ferreyra, F. E. Levis, Saroj B. Malik +1
We investigate two one-sided orthogonalities of matrices, the first of which is left (right) -orthogonality for rectangular matrices and the other is left (right) core-orthogona…