Results 71 to 80 of about 5,012,670 (186)

A Note on Inclusion Intervals of Matrix Singular Values

open access: yesJournal of Applied Mathematics, 2012
We establish an inclusion relation between two known inclusion intervals of matrix singular values in some special case. In addition, based on the use of positive scale vectors, a known inclusion interval of matrix singular values is also improved.
Shu-Yu Cui, Gui-Xian Tian
doaj   +1 more source

Noise Mapping and Removal in Complex-Valued Multi-Channel MRI via Optimal Shrinkage of Singular Values. [PDF]

open access: yesMed Image Comput Comput Assist Interv, 2021
Minh Huynh K   +5 more
europepmc   +1 more source

SINGULAR RANDOM MATRIX DECOMPOSITIONS: DISTRIBUTIONS. [PDF]

open access: yes
Assuming that Y has a singular matrix variate elliptically contoured distribution with respect to the Hausdorff measure, the distributions of several matrices associated to QR, modified QR, SV and Polar decompositions of matrix Y are determined, for ...
Graciela González-Farías   +1 more
core  

On the singular values decoupling in the Singular Spectrum Analysis of volcanic tremor at Stromboli [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2006
The well known strombolian activity at Stromboli volcano is occasionally interrupted by rarer episodes of paroxysmal activity which can lead to considerable hazard for Stromboli inhabitants and tourists. On 5 April 2003 a powerful explosion, which can be
R. Carniel   +3 more
doaj  

Perturbation bounds for eigenvalues of diagonalizable matrices and singular values

open access: yesJournal of Inequalities and Applications, 2016
Perturbation bounds for eigenvalues of diagonalizable matrices are derived. Perturbation bounds for singular values of arbitrary matrices are also given. We generalize some existing results.
Duanmei Zhou   +3 more
doaj   +1 more source

SINGULAR RANDOM MATRIX DECOMPOSITIONS: JACOBIANS. [PDF]

open access: yes
For a singular random matrix Y, we find the Jacobians associated with the following decompositions; QR, Polar, Singular Value (SVD), L´U, L´DM and modified QR (QDR).
Graciela González-Farías   +1 more
core  

svt: Singular Value Thresholding in MATLAB

open access: yesJournal of Statistical Software, 2017
Many statistical learning methods such as matrix completion, matrix regression, and multiple response regression estimate a matrix of parameters. The nuclear norm regularization is frequently employed to achieve shrinkage and low rank solutions.
Cai Li, Hua Zhou
doaj   +1 more source

Modified Differential Transform Method for Two Singular Boundary Values Problems

open access: yesJournal of Applied Mathematics, 2014
This paper deals with the two singular boundary values problems of second order. Two singular points are both boundary values points of the differential equation.
Yinwei Lin   +2 more
doaj   +1 more source

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