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On Weighted Low-Rank Approximation [PDF]

open access: green, 2013
Our main interest is the low-rank approximation of a matrix in R^m.n under a weighted Frobenius norm. This norm associates a weight to each of the (m x n) matrix entries. We conjecture that the number of approximations is at most min(m, n).
Rey, William
core   +3 more sources

Approximation of Discrete Data by Discrete Weighted Transform

open access: greenJournal of Mathematical Extension, 2014
The aim of this paper is to introduce the notion of discrete and inverse discrete weighted transform. We show that discrete input data can be converted to a continuous approximation through the inverse discrete weighted ...
S. Jahed, F. Javadi∗
doaj   +1 more source

N- Monotone Approximation in Weighted Space [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2022
The purpose of this paper is to discuss the degree of best monotone multi- approximation of unbounded functions weighted space in terms the modules of smoothness by using some algebraic linear operators. In addition, introduced ,proofs some properties of
Alaa Adnan, Wameeth Ali
doaj   +1 more source

Best multi Approximation of Unbounded Functions by Using Modulus of Smoothness [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2021
We present an estimate of the degree of best multi approximation of unbounded function on 〖[-1,1]〗^d by algebraic polynomials in weighted space. The studied of the relation between the best approximation of derivatives functions in weighted space and the
Omar Khashan   +2 more
doaj   +1 more source

Best Co-Approximation In Weighted Space [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2022
In this paper, we present best co- approximation in weighted space. The results considered are these of existence of functions of best co- approximation, specifications of co-a proximal and specification co- Chebyshev subspaces.
Alaa Auad, Alaa Hussain
doaj   +1 more source

On One- and Two-Dimensional α–Stancu–Schurer–Kantorovich Operators and Their Approximation Properties

open access: yesMathematics, 2022
The goal of this research article is to introduce a sequence of α–Stancu–Schurer–Kantorovich operators. We calculate moments and central moments and find the order of approximation with the aid of modulus of continuity.
Md. Heshamuddin   +4 more
doaj   +1 more source

Approximation of Weighted Automata with Storage [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We use a non-deterministic variant of storage types to develop a framework for the approximation of automata with storage. This framework is used to provide automata-theoretic views on the approximation of multiple context-free languages and on coarse ...
Tobias Denkinger
doaj   +1 more source

Stancu Type Baskakov—Durrmeyer Operators and Approximation Properties

open access: yesMathematics, 2020
In this article, we introduce Stancu type generalization of Baskakov–Durrmeyer operators by using inverse Pólya–Eggenberger distribution. We discuss some basic results and approximation properties. Moreover, we study the statistical convergence for these
Adem Kilicman   +2 more
doaj   +1 more source

Approximation properties of modified (p, q)-Szász-Mirakyan-Kantorovich operators

open access: yesAIMS Mathematics, 2020
In this paper, we introduce a new kind of modified (p, q)-Szász-Mirakyan-Kantorovich operators based on (p, q)-calculus. Next, the moments computation formulas, the second and fourth order central moments computation formulas and other quantitative ...
Zhongbin Zheng   +4 more
doaj   +1 more source

The Approximation Characteristics of Weighted p-Wiener Algebra

open access: yesMathematics, 2023
In this paper, we study the approximation characteristics of weighted p-Wiener algebra AωpTd for 1 ...
Ying Chen   +3 more
doaj   +1 more source

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