Results 81 to 90 of about 2,163,565 (354)

On inverse and generalized inverses of Hessenberg matrices

open access: yesLinear Algebra and its Applications, 1988
AbstractIn this paper, new algorithms for computing the inverses and the generalized inverses of a class of real Hessenberg matrices are given. The inverses and the generalized inverses that satisfy one, several or even all of the Penrose equations are shown to have a simple structure, and can be constructed from tghe inverses of triangular matrices of
openaire   +2 more sources

A -partial isometries and generalized inverses

open access: yesLinear Algebra and its Applications, 2013
Fil: Arias, Maria Laura. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Saavedra 15.
Arias, Maria Laura, Mbekhta, Mostafa
openaire   +3 more sources

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

open access: yesAdvanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee   +15 more
wiley   +1 more source

Active Learning‐Driven Discovery of Sub‐2 Nm High‐Entropy Nanocatalysts for Alkaline Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
High‐entropy nanoparticles (HENPs) hold great promise for electrocatalysis, yet optimizing their compositions remains challenging. This study employs active learning and Bayesian Optimization to accelerate the discovery of octonary HENPs for hydrogen and oxygen evolution reactions.
Sakthivel Perumal   +5 more
wiley   +1 more source

On Hermitian generalized inverses and positive semidefinite generalized inverses

open access: yesIndian Journal of Pure and Applied Mathematics, 2014
The main aim of this paper is to investigate the Hermitian and positive semidefinite generalized inverses of a square matrix. First, we present some conditions for the existence of Hermitian and positive semidefinite generalized inverses. Further, expressions of these generalized inverses are given.
openaire   +2 more sources

On sparse reflexive generalized inverse

open access: yesOperations Research Letters, 2018
We study sparse generalized inverses $H$ of a rank-$r$ real matrix $A$. We give a construction for reflexive generalized inverses having at most $r^2$ nonzeros. For $r=1$ and for $r=2$ with $A$ nonnegative, we demonstrate how to minimize the (vector) 1-norm over reflexive generalized inverses.
Marcia Fampa, Jon Lee
openaire   +4 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Through a generalized inverse

open access: yesDemonstratio Mathematica, 2008
AbstractTraditionally, the existence of a generalized inverse of a ...
openaire   +2 more sources

A generalized Fourier inversion Theorem [PDF]

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2008
15 pages; some typos ...
openaire   +3 more sources

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