Results 1 to 10 of about 3,077,553 (314)

Robust pathway sampling in phenotype prediction. Application to triple negative breast cancer

open access: yesBMC Bioinformatics, 2020
Background Phenotype prediction problems are usually considered ill-posed, as the amount of samples is very limited with respect to the scrutinized genetic probes.
Ana Cernea   +7 more
doaj   +1 more source

Alternative Ways of Computing the Numerator Relationship Matrix

open access: yesFrontiers in Genetics, 2021
Pedigree relationships between every pair of individuals forms the elements of the additive genetic relationship matrix (A). Calculation of A−1 does not require forming and inverting A, and it is faster and easier than the calculation of A.
Mohammad Ali Nilforooshan   +2 more
doaj   +1 more source

On the Explicit Formula for Eigenvalues, Determinant, and Inverse of Circulant Matrices

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Determining eigenvalues, determinants, and inverse for a general matrix is computationally hard work, especially when the size of the matrix is large enough.
Nur Aliatiningtyas   +2 more
doaj   +1 more source

Characteristic polynomial, determinant and inverse of a Fibonacci-Sylvester-Kac matrix

open access: yesSpecial Matrices, 2021
In this paper, we consider a new Sylvester-Kac matrix, i.e., Fibonacci-Sylvester-Kac matrix. We discuss the eigenvalues, eigenvectors and characteristic polynomial of this matrix in two categories based on whether the Fibonacci-Sylvester-Kac matrix order
Jiang Zhaolin, Zheng Yanpeng, Li Tianzi
doaj   +1 more source

Quasi-cyclic displacement and inversion decomposition of a quasi-Toeplitz matrix

open access: yesAIMS Mathematics, 2022
We study a class of column upper-minus-lower (CUML) Toeplitz matrices, which are "close" to the Toeplitz matrices in the sense that their (1,−1)-cyclic displacements coincide with φ-cyclic displacement of some Toeplitz matrices.
Yanpeng Zheng, Xiaoyu Jiang
doaj   +1 more source

A COMPUTATION PERSPECTIVE FOR THE EIGENVALUES OF CIRCULANT MATRICES INVOLVING GEOMETRIC PROGRESSION

open access: yesJurnal Matematika UNAND, 2023
In this article, the eigenvalues and inverse of circulant matrices with entries in the first row having the form of a geometric sequence are formulated explicitly in a simple form in one theorem. The method for deriving the formulation of the determinant
SISWANDI SISWANDI   +3 more
doaj   +1 more source

On fourth order accuracy stable difference scheme for a multi-point overdetermined elliptic problem

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper fourth order of accuracy difference scheme for approximate solution of a multi-point elliptic overdetermined problem in a Hilbert space is proposed.
C. Ashyralyyev, G. Akyuz
doaj   +1 more source

On some properties of a generalized min matrix

open access: yesAIMS Mathematics, 2023
In this paper, we investigate a min matrix and obtain its $ LU $-decomposition, determinant, permanent, inverse, and norm properties. In addition, we obtain a recurrence relation provided by the characteristic polynomial of this matrix.
Emrah Polatlı
doaj   +1 more source

Inverse melting and inverse freezing: a spin model [PDF]

open access: yes, 2005
Systems of highly degenerate ordered or frozen state may exhibit inverse melting (reversible crystallization upon heating) or inverse freezing (reversible glass transition upon heating).
Schupper, Nurith, Shnerb, Nadav M.
core   +1 more source

Some Results on Inverse Scattering [PDF]

open access: yes, 2007
A review of some of the author's results in the area of inverse scattering is given. The following topics are discussed: 1) Property $C$ and applications, 2) Stable inversion of fixed-energy 3D scattering data and its error estimate, 3) Inverse ...
Ramm, A. G.
core   +8 more sources

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