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When is B− A− a generalized inverse of AB?☆

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TLDR
In this paper, it was shown that the generalized inverse of a matrix product can arise from factorizations of the matrix which is to be inverted, such as full rank factorizations, normal factorizations and singular value decompositions (SVD).
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This article is published in Linear Algebra and its Applications.The article was published on 1994-10-01 and is currently open access. It has received 57 citations till now. The article focuses on the topics: Matrix (mathematics) & Generalized inverse.

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Moore–Penrose inverse in rings with involution

TL;DR: In this paper, the Moore-Penrose inverse (MP-inverse) was studied in the setting of rings with involution and the relation between regular, MP-invertible and well-supported elements was analyzed.
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Reverse order law for the Moore–Penrose inverse

TL;DR: In this paper, the reverse order law for the Moore-Penrose inverse of operators on Hilbert spaces is studied in the context of finite-dimensional settings. But it is not shown in this paper that the result can be extended to infinite dimensions.
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Inverse Order Rule for Weighted Generalized Inverse

Abstract: The weighted generalized inverses have several important applications in researching the singular matrices, regularization methods for ill-posed problems, optimization problems, and statistics problems. In this paper we establish some sufficient and necessary conditions for inverse order rule of weighted generalized inverse.
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Further Results on the Reverse Order Law for Generalized Inverses

TL;DR: The reverse order rule $(AB)=B^\dag=B + A = A for the Moore-Penrose inverse is established in several equivalent forms.
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Reverse order laws in C∗-algebras☆

TL;DR: In this paper, the necessary and sufficient conditions for reverse order laws for generalized inverses in C ∗ -algebras, extending rank conditions for matrices and range conditions for Hilbert space operators, are given.
References
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Generalized inverses: theory and applications

TL;DR: In this paper, the Moore of the Moore-Penrose Inverse is described as a generalized inverse of a linear operator between Hilbert spaces, and a spectral theory for rectangular matrices is proposed.
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Generalized Inverse of Matrices and Its Applications

K. S. Banerjee
- 01 Feb 1973 - 
TL;DR: In this article, the generalized inverse of matrices and its applications are discussed and discussed in terms of generalized inverse of matrix and its application in the context of generalization of matrix matrices.
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A Note on a Generalized Inverse of a Matrix with Applications to Problems in Mathematical Statistics

TL;DR: In this article, the author defined a pseudo inverse of a singular matrix and used it in representing a solution of normal equations and for obtaining variances and covariances of estimates in the theory of least squares.
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Generalized inverse of linear transformations: a geometric approach

TL;DR: The LM N-inverse as mentioned in this paper is a generalized inverse of a linear transformation A: →, where and are arbitrary finite dimensional vector spaces, defined using only geometrical concepts of linear transformations.