Results 21 to 30 of about 1,040,227 (270)

An S-type singular value inclusion set for rectangular tensors

open access: yesJournal of Inequalities and Applications, 2017
An S-type singular value inclusion set for rectangular tensors is given. Based on the set, new upper and lower bounds for the largest singular value of nonnegative rectangular tensors are obtained and proved to be sharper than some existing results ...
Caili Sang
doaj   +1 more source

Singular value demodulation of phase-shifted holograms [PDF]

open access: yes, 2015
We report on phase-shifted holographic interferogram demodulation by singular value decomposition. Numerical processing of optically-acquired interferograms over several modulation periods was performed in two steps : 1- rendering of off-axis complex ...
Atlan, Michael, Lopes, Fernando
core   +5 more sources

An alternating direction power-method for computing the largest singular value and singular vectors of a matrix

open access: yesAIMS Mathematics, 2023
The singular value decomposition (SVD) is an important tool in matrix theory and numerical linear algebra. Research on the efficient numerical algorithms for computing the SVD of a matrix is extensive in the past decades.
Yonghong Duan, Ruiping Wen
doaj   +1 more source

Schur Complement-Based Infinity Norm Bounds for the Inverse of GDSDD Matrices

open access: yesMathematics, 2022
Based on the Schur complement, some upper bounds for the infinity norm of the inverse of generalized doubly strictly diagonally dominant matrices are obtained. In addition, it is shown that the new bound improves the previous bounds.
Yating Li, Yaqiang Wang
doaj   +1 more source

A basis of common approach to the development of universal steganalysis methods for digital images

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
In this paper a new common approach to the organization of steganalysis in digital images is developed. New features of formal parameters defining the image are identified, theoretically grounded and practically tested. For the first time characteristics
Alla А. Kobozeva
doaj   +1 more source

The value of singularities

open access: yesGeneral Relativity and Gravitation, 1995
5 pages, no figures; a few clarifying comments ...
Horowitz, Gary T., Myers, Robert
openaire   +2 more sources

New inclusion sets for singular values

open access: yesJournal of Inequalities and Applications, 2017
In this paper, for a given matrix A = ( a i j ) ∈ C n × n $A=(a_{ij}) \in\mathbb{C}^{n\times n}$ , in terms of r i $r_{i}$ and c i $c_{i}$ , where r i = ∑ j = 1 , j ≠ i n | a i j | $r_{i} = \sum _{j = 1,j \ne i}^{n} {\vert {a_{ij} } \vert }$ , c i = ∑ j =
Jun He   +3 more
doaj   +1 more source

Generalisation of Levine's prediction for the distribution of freezing temperatures of droplets: A general singular model for ice nucleation [PDF]

open access: yes, 2013
Models without an explicit time dependence, called singular models, are widely used for fitting the distribution of temperatures at which water droplets freeze. In 1950 Levine developed the original singular model.
Sear, Richard P.
core   +3 more sources

On a Matrix Inequality Related to the Distillability Problem

open access: yesEntropy, 2018
We investigate the distillability problem in quantum information in ℂ d ⊗ ℂ d . One case of the problem has been reduced to proving a matrix inequality when d = 4 .
Yi Shen, Lin Chen
doaj   +1 more source

Singular Vectors From Singular Values

open access: yes, 2020
8 ...
Xu, Weiwei, Ng, Michael K.
openaire   +2 more sources

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