Results 31 to 40 of about 2,313 (171)

DIAGONALISASI MATRIX FOURIER SEBAGAI CIRI KHAS MATRIX CIRCULANT [PDF]

open access: yes, 1993
Matrix permutasi cyclic tertentu dapat digunakan untuk mendefinisikan matrix circulant. Matrix circulant merupakan matrix normal, sehingga dapat didiagonalisasi matrix unity tertentu, yaitu matrix Fourier. Diagonalisasi matrix Fourier merupakan ciri khas
KARYADI, KARYADI
core  

On Fast Computation of a Circulant Matrix-Vector Product

open access: yesCoRR, 2021
This paper deals with circulant matrices. It is shown that a circulant matrix can be multiplied by a vector in time O(n log(n)) in a ring with roots of unity without making use of an FFT algorithm. With our algorithm we achieve a speedup of a factor of about 2.25 for the multiplication of two polynomials with integer coefficients compared to ...
openaire   +2 more sources

A Preconditioned Majorization‐Minimization Method for ℓ2$$ {\ell}^2 $$‐ℓq$$ {\ell}^q $$ Minimization

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT The need to minimize a linear combination of an expression that involves an ℓq$$ {\ell}^q $$‐norm of a linear transformation of the computed solution and the ℓ2$$ {\ell}^2 $$‐norm of the residual error arises in image restoration as well as in statistics.
A. Buccini   +3 more
wiley   +1 more source

Inverse matrix of symmetric circulant matrix on skew field

open access: yesInternational Journal of Algebra, 2007
Introduced the notion of symmetric circulant matrix on skew field, an easy method is given to determine the inverse of symmetric circulant matrix on skew field , with this method , we derived the formula of determine inverse about several special type of symmetric circulant matrix.
Jun-qing Wang, Chang-zhou Dong
openaire   +1 more source

Post‐surgery level of circulating DNA in stage III colon cancer patients: Impact on the reliability of minimal residual disease detection

open access: yesInternational Journal of Cancer, Volume 158, Issue 10, Page 2771-2783, 15 May 2026.
What's New? Circulating nuclear DNA (cir‐nDNA)‐based assessment of minimal residual disease (MRD) offers powerful post‐surgery prognostic insight for stage III colon cancer (CC). Sparse knowledge of post‐surgical variations and origins in cir‐nDNA, however, has limited its clinical application.
Andrei Kudriavtsev   +17 more
wiley   +1 more source

A note on r-circulant matrices involving generalized Narayana numbers [PDF]

open access: yes, 2023
In order to further connect structured matrices and integer sequences, r-circulant matrices involving the generalized Narayana numbers are considered. Estimates for spectral norms bounds of such matrices are presented and their eigenvalues are determined.
Pešović, Marko, Pucanović, Zoran
core   +1 more source

Circulating Nuclear Matrix Protein in Graves' Disease.

open access: yesEndocrine Journal, 2002
The Fas/Fas ligand system induces apoptosis, while soluble Fas (sFas) blocks the system and soluble Fas ligand (sFasL) functions to induce apoptosis. The assay of nuclear matrix protein (NMP) released from dead or dying cells can be used to quantitate cell death.
HARA, HIDEO   +3 more
openaire   +3 more sources

β3‐adrenoceptor agonism exerts lung protection in a rat model of bronchopulmonary dysplasia

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 10, Page 2497-2517, May 2026.
The β3‐adrenoceptors agonist BRL37344 promotes lung maturation, preventing the progression of experimental bronchopulmonary dysplasia. Absract Background and Purpose Bronchopulmonary dysplasia (BPD) affects premature newborns, particularly those receiving supplemental oxygen therapy.
Alessandro Pini   +14 more
wiley   +1 more source

Fast Template Matching by Subsampled Circulant Matrix

open access: yesCoRR, 2015
7 pages, 1 figure, 2 ...
Sung-Hsien Hsieh   +2 more
openaire   +2 more sources

Construction of a set of circulant matrix submatrices for faster MDS matrix verification

open access: yesCoRR, 2021
The present paper focuses on the construction of a set of submatrices of a circulant matrix such that it is a smaller set to verify that the circulant matrix is an MDS (maximum distance separable) one, comparing to the complete set of square submatrices needed in general case.
openaire   +2 more sources

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