Results 21 to 30 of about 261,453 (169)

Fast Regularization of Matrix-Valued Images [PDF]

open access: yes, 2012
Regularization of images with matrix-valued data is important in medical imaging, motion analysis and scene understanding. We propose a novel method for fast regularization of matrix group-valued images. Using the augmented Lagrangian framework we separate total- variation regularization of matrix-valued images into a regularization and a projection
Guy Rosman   +4 more
openaire   +1 more source

Noninclusion theorems for summability matrices

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
For both ordinary convergence and ℓ1-summability explicit sufficient conditions on a matrix have long been known that ensure that the summability method is strictly stronger than the identity map. The main results herein show that a matrix that satisfies
J. A. Fridy
doaj   +1 more source

About canonical forms of regular matrix pencil

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
The algorithm of local reduction of the regular matrix pencil to canonical form is constructed in the article.
P. F. Samusenko
doaj   +1 more source

Investigation of Dispersion, Interfacial Adhesion of Isotropic and Anisotropic Filler in Polymer Composite

open access: yesApplied Sciences, 2021
The movement of isotropic and anisotropic particles of iron and graphite within the polymer matrix was predicted and examined by the COMSOL simulation method.
Sneha Samal, Ignazio Blanco
doaj   +1 more source

J-Self-Adjoint Projections in Krein Spaces

open access: yesJournal of Function Spaces, 2020
Let ℋ be a Krein space with fundamental symmetry J. Starting with a canonical block-operator matrix representation of J, we study the regular subspaces of ℋ.
Xiao-Ming Xu, Yile Zhao
doaj   +1 more source

Approximate Biprojectivity of ℓ1-Munn Banach Algebras

open access: yesJournal of Mathematics, 2022
In the present paper, we study the approximate biprojectivity and weak approximate biprojectivity of ℓ1-Munn Banach algebras when the related sandwich matrix is regular over InvA.
G. Zarei   +3 more
doaj   +1 more source

MASALAH EIGEN DAN EIGENMODE MATRIKS ATAS ALJABAR MIN-PLUS

open access: yesBarekeng, 2021
Eigen problems and eigenmode are important components related to square matrices. In max-plus algebra, a square matrix can be represented in the form of a graph called a communication graph.
Eka Widia Rahayu   +2 more
doaj   +1 more source

On Some Estimate for the Norm of an Interpolation Projector

open access: yesМоделирование и анализ информационных систем, 2022
Let $Q_n=[0,1]^n$ be the unit cube in ${\mathbb R}^n$ and let $C(Q_n)$ be a space of continuous functions $f:Q_n\to{\mathbb R}$ with the norm $\|f\|_{C(Q_n)}:=\max_{x\in Q_n}|f(x)|.$ By $\Pi_1\left({\mathbb R}^n\right)$ denote a set of polynomials in $n$
Mikhail V. Nevskii
doaj   +1 more source

On some regular and singular problems of Birkhoff interpolation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Here we investigate the pure (0,1,…,r−2,r)-interpolation problem on the zeros of (1−x2)Pn(α)(x)=(1−x2)Pn(α,α)(x), α>−1, where Pn(α,α)(x) is the Jacobi polynomial of degree n with β=α.
N. Jhunjhunwala, J. Prasad
doaj   +1 more source

Tauberian theorems for matrix regular variation [PDF]

open access: yesTransactions of the American Mathematical Society, 2012
Karamata’s Tauberian theorem relates the asymptotics of a nondecreasing right-continuous function to that of its Laplace-Stieltjes transform, using regular variation. This paper establishes the analogous Tauberian theorem for matrix-valued functions. Some applications to time series analysis are indicated.
Meerschaert, M. M., Scheffler, H.-P.
openaire   +2 more sources

Home - About - Disclaimer - Privacy