Results 51 to 60 of about 259,092 (193)
Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer
Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi +3 more
wiley +1 more source
Toeplitz and Hankel Determinants for Certain Subclasses Associated with Sakaguchi Type Functions
Mathematical and Computational ApplicationsIn this work, we establish bounds for Hermitian Toeplitz determinants of orders two and three for distinct subclasses of symmetric starlike functions associated with balloon-, limaçon-, and bean-shaped domains.
Mohammed Ali Alamri +5 more
doaj +1 more source
ON THE INVERSE OF PATTERN MATRICES WITH APPLICATION TO STATISICAL MODELS
Tikrit Journal of Pure Science, 2018 In this study the inverse of two patterned matrices has been investigated. First, for a Toeplitz-type matrix, it is proved that the exact number of independent cofactors is (n +2)/4 when n is even number and when n is an odd. Second, when the matrix is
Hiba Hani Abdullah
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The determination of companion matrices characterizing toeplitz and r-Toeplitz matrices
Linear Algebra and its Applications, 1989 The purpose is to show that a companion Toeplitz (T) matrix and its r- Toeplitz (S) matrix counterpart can be replaced by much simpler results if one considers the inverses of T and S.
openaire +1 more source
Forecasting With Dynamic Factor Models Estimated by Partial Least Squares
Journal of Forecasting, Volume 45, Issue 6, Page 2785-2806, September 2026.ABSTRACT Dynamic factor models (DFMs) have found great success in nowcasting and short‐term macroeconomic forecasting when incorporating large sets of predictive information. The factor loadings are typically estimated cross‐sectionally with principal component analysis (PCA) or maximum likelihood (ML), which ignore whether the factors have predictive ...
Samuel Rauhala
wiley +1 more source
Toeplitz Determinants for Inverse of Analytic Functions
MathematicsEstimates bounds for Carathéodory functions in the complex domain are applied to demonstrate sharp limits for the inverse of analytic functions. Determining these values is considered a more difficult task compared to finding the values of analytic ...
Sarem H. Hadi +4 more
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Toeplitz determinants with perturbations in the corners
Journal of Functional Analysis, 2015 20 ...
Albrecht Böttcher +3 more
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Asymptotic Behaviors of Modified Block Toeplitz Determinant [PDF]
Progress of Theoretical Physics, 1990 Some formulas are given for the asymptotic form of NXN modified block Toeplitz determinants for large N. These formulas are useful in obtaining the asymptotic behaviors of the correlation function of two spins of the Ising model on a two-dimensional regular lattice when the two spins are not on an axis.
Tanaka, Kazuyuki, Morita, Tohru
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Magnetic Dual‐Layer Equivalent Sources on the Sphere
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract The equivalent source method is widely used for processing and interpolating magnetic data, particularly in airborne surveys. However, implementations based on Cartesian coordinates present limitations at regional and global scales, where Earth curvature introduces geometric inconsistencies that affect data integration and modeling accuracy ...
Arthur Siqueira‐Macedo +2 more
wiley +1 more source
Determinant of binary circulant matrices
Special Matrices, 2019 This article gives a closed-form expression for the determinant of binary circulant matrices.
Hariprasad M.
doaj +1 more source