Results 111 to 120 of about 640 (203)

A note on Drazin inverses [PDF]

open access: yesPacific Journal of Mathematics, 1977
openaire   +2 more sources

Evaluation of the N2O Rate of Change to Understand the Stratospheric Brewer-Dobson Circulation in a Chemistry-Climate Model. [PDF]

open access: yesJ Geophys Res Atmos, 2022
Minganti D   +11 more
europepmc   +1 more source

Characterizations and representations of the Drazin inverse involving idempotents

open access: yes, 2009
This paper is to present some results on the Drazin invertibility of products and differences of idempotents. In addition, some formulae for the Drazin inverse of sums, differences and products of idempotents are also ...
Deng, Chunyuan, Wei, Yimin
core   +1 more source

On the Construction of a Two-Step Sixth-Order Scheme to Find the Drazin Generalized Inverse

open access: yesAxioms
This study introduces a numerically efficient iterative solver for computing the Drazin generalized inverse, addressing a critical need for high-performance methods in matrix computations.
Keyang Zhang   +2 more
doaj   +1 more source

New representations for weighted Drazin inverse of matrices [PDF]

open access: yes, 2007
In this paper, the result are established in the following four ways: First, we present a general representation for the weighted Drazin inverse Ad,W of an arbitrary rectangular matrix A ∈ Mm,n involving Moore-Penrose inverse, which reduces to the well ...
Abu Hassan, Malik   +2 more
core  

Block representations of the Drazin inverse of a bipartite matrix

open access: yes, 2009
Block representations of the Drazin inverse of a bipartite matrix A=   [ 0     B]         [C      0] in terms of the Drazin inverse of the smaller order block product BC or CB are presented. Relationships
Catral, Minerva   +3 more
core   +1 more source

A note on computing the Drazin inverse

open access: yes, 1976
A method is given for computing the Drazin inverse of a square matrix A of order n as a polynomial in A of degree n−1 or less from the characteristic polynomial of ...
Rose, Nicholas J.
core   +1 more source

Perturbation for the Group Inverse in a Banach Algebra

open access: yesAxioms
We present new additive results for the group inverse in a Banach algebra under certain perturbations. The upper bound of ∥(a+b)#−ad∥ is thereby given. These results extend the main results presented by Liu, Qin, and Wei.
Dayong Liu   +3 more
doaj   +1 more source

On New Properties of the Drazin-Star and the Star-Drazin Inverses

open access: yesBulletin of the Iranian Mathematical Society
Abstract The aim of this work is to study new properties of the Drazin-Star and the Star-Drazin inverses of a bounded finite potent operator on a Hilbert space. Given a bounded finite potent operator $$\varphi \in \operatorname {End}_k (\mathcal H)
Pablos Romo, Fernando, Mosić, Dijana
openaire   +2 more sources

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