Results 1 to 10 of about 522 (129)

A New Generalization of the Generalized Inverse Rayleigh Distribution with Applications [PDF]

open access: yesSymmetry, 2021
In this article, a new four-parameter lifetime model called the beta generalized inverse Rayleigh distribution (BGIRD) is defined and studied. Mixture representation of this model is derived. Curve’s behavior of probability density function, reliability function, and hazard function are studied.
Rana Ali Bakoban   +1 more
openaire   +1 more source

Generalized inverses in graph theory

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
–In this article, some interesting applications of generalized inverses in the graph theory are revisited. Interesting properties of generalized inverses are employed to make the proof of several known results simpler, and several techniques such as ...
Umashankara Kelathaya   +2 more
doaj   +1 more source

Characterizations of the group invertibility of a matrix revisited

open access: yesDemonstratio Mathematica, 2022
A square complex matrix AA is said to be group invertible if there exists a matrix XX such that AXA=AAXA=A, XAX=XXAX=X, and AX=XAAX=XA hold, and such a matrix XX is called the group inverse of AA.
Tian Yongge
doaj   +1 more source

Algebraic Perturbation Theorems of Core Inverse A㊮ and Core-EP Inverse A㊯

open access: yesJournal of Mathematics, 2023
In this paper, the algebraic perturbation theorems of the core inverse A㊮ and core-EP inverse A㊯ are discussed for a square singular matrix A with different indices, and the expressions of the algebraic perturbation for these two new generalized inverses
Xingping Sheng
doaj   +1 more source

Algebraic Characterizations of Relationships between Different Linear Matrix Functions

open access: yesMathematics, 2023
Let f(X1,X2,…,Xk) be a matrix function over the field of complex numbers, where X1,X2,…,Xk are a family of matrices with variable entries. The purpose of this paper is to propose and investigate the relationships between certain linear matrix functions ...
Yongge Tian, Ruixia Yuan
doaj   +1 more source

Extending the Applicability of Highly Efficient Iterative Methods for Nonlinear Equations and Their Applications

open access: yesMathematics, 2022
Numerous three-step methods of high convergence order have been developed to produce sequences approximating solutions of equations usually defined on the Euclidean space with a finite dimension.
Ramandeep Behl   +3 more
doaj   +1 more source

A note on adaptivity in factorized approximate inverse preconditioning

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
The problem of solving large-scale systems of linear algebraic equations arises in a wide range of applications. In many cases the preconditioned iterative method is a method of choice.
Kopal Jiří   +2 more
doaj   +1 more source

Equalities and inequalities for ranks of products of generalized inverses of two matrices and their applications

open access: yesJournal of Inequalities and Applications, 2016
A complex matrix X is called an { i , … , j } $\{i,\ldots, j\}$ -inverse of the complex matrix A, denoted by A ( i , … , j ) $A^{(i,\ldots, j)}$ , if it satisfies the ith, …, jth equations of the four matrix equations (i) A X A = A $AXA = A$ , (ii) X A X
Yongge Tian
doaj   +1 more source

The Computation and Application of the Generalized Inverse via Maple

open access: yesJournal of Symbolic Computation, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jon Jones   +2 more
openaire   +1 more source

Transferring Instantly the State of Higher-Order Linear Descriptor (Regular) Differential Systems Using Impulsive Inputs

open access: yesJournal of Control Science and Engineering, 2009
In many applications, and generally speaking in many dynamical differential systems, the problem of transferring the initial state of the system to a desired state in (almost) zero-time time is desirable but difficult to achieve.
Athanasios D. Karageorgos   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy