Results 21 to 30 of about 2,163,565 (354)

Inverses of Generators [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
Let A A be a (possibly unbounded) linear operator on a Banach space X X that generates a bounded holomorphic semigroup of angle θ ( 0 > θ ≤ π / 2 ) \theta (0 > \theta \leq \pi /2) . We show that, if the range of
openaire   +2 more sources

Smoothness of generalized inverses

open access: yesIndagationes Mathematicae, 2012
AbstractThe paper is largely expository. It is shown that if a(x) is a smooth unital Banach algebra valued function of a parameter x, and if a(x) has a locally bounded generalized inverse in the algebra, then a generalized inverse of a(x) exists which is as smooth as a(x) is.
Leiba Rodman, Jürgen Leiterer
openaire   +2 more sources

A geometrical interpretation of the inverse matrix

open access: yesJournal of Inequalities and Applications, 2016
Utilizing a new method to structure parallellotopes, a geometrical interpretation of the inverse matrix is given, which includes the generalized inverse of full column rank or a full row rank matrices.
Yanping Zhou, Binwu He
doaj   +1 more source

Characterizations of Matrix Equalities for Generalized Inverses of Matrix Products

open access: yesAxioms, 2022
This paper considers how to construct and describe matrix equalities that are composed of algebraic operations of matrices and their generalized inverses.
Yongge Tian
doaj   +1 more source

Minimal Rank Properties of Outer Inverses with Prescribed Range and Null Space

open access: yesMathematics, 2023
The purpose of this paper is to investigate solvability of systems of constrained matrix equations in the form of constrained minimization problems.
Dijana Mosić   +2 more
doaj   +1 more source

Inverse Generalized Maximum Flow Problems

open access: yesMathematics, 2019
A natural extension of maximum flow problems is called the generalized maximum flow problem taking into account the gain and loss factors for arcs. This paper investigates an inverse problem corresponding to this problem. It is to increase arc capacities
Javad Tayyebi, Adrian Deaconu
doaj   +1 more source

Generating generalized inverse Gaussian random variates by fast inversion

open access: yesComputational Statistics & Data Analysis, 2011
The inversion method for generating non-uniformly distributed random variates is a crucial part in many applications of Monte Carlo techniques, e.g., when low discrepancy sequences or copula based models are used. Unfortunately, closed form expressions of quantile functions of important distributions are often not available.
Leydold, Josef, Hörmann, Wolfgang
openaire   +4 more sources

Any l-State Solutions of the Schrodinger Equation for q-Deformed Hulthen Plus Generalized Inverse Quadratic Yukawa Potential in Arbitrary Dimensions

open access: yesRevista mexicana de física, 2019
The bound state approximate solution of the Schrodinger equation is obtained for the q-deformed Hulthen plus generalized inverse quadratic Yukawa potential (HPGIQYP) in -dimensions using the Nikiforov-Uvarov (NU) method and the corresponding ...
C. Edet, and P. O. Okoi
semanticscholar   +1 more source

Matrix inverses along the core parts of three matrix decompositions

open access: yesAIMS Mathematics, 2023
New characterizations for generalized inverses along the core parts of three matrix decompositions were investigated in this paper. Let $ A_{1} $, $ \hat{A}_{1} $ and $ \tilde{A}_{1} $ be the core parts of the core-nilpotent decomposition, the core-EP ...
Xiaofei Cao   +4 more
doaj   +1 more source

Miscellaneous equalities for idempotent matrices with applications

open access: yesOpen Mathematics, 2020
This article brings together miscellaneous formulas and facts on matrix expressions that are composed by idempotent matrices in one place with cogent introduction and references for further study.
Tian Yongge
doaj   +1 more source

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