Results 31 to 40 of about 28,804 (256)

Nonlinear Bivariate Bernstein–Chlodowsky Operators of Maximum Product Type

open access: yesJournal of Mathematics, 2022
The positive nonlinear operators with maximum and product were introduced by Bede. In this study, nonlinear maximum product type of bivariate Bernstein–Chlodowsky operators is defined and the approximation properties are investigated with the help of new
Özge Özalp Güller   +2 more
doaj   +1 more source

Characterisation of matrix entropies [PDF]

open access: yes, 2015
The notion of matrix entropy was introduced by Tropp and Chen with the aim of measuring the fluctuations of random matrices. It is a certain entropy functional constructed from a representing function with prescribed properties, and Tropp and Chen gave ...
Hansen, Frank, Zhang, Zhihua
core   +1 more source

On Some Bivariate Gauss-Weierstrass Operators

open access: yesConstructive Mathematical Analysis, 2019
The aim of the paper is to investigate the approximation properties of bivariate generalization of Gauss-Weierstrass operators associated with the Riemann-Liouville operator. In particular, the approximation error will be estimated by these operators in the space of functions defined and continuous in the half-plane $(0, \infty) \times \mathbb{R}$, and
Grazyna Krech, Ireneusz Krech
openaire   +4 more sources

Bivariate Chlodowsky-Stancu Variant of (p,q)-Bernstein-Schurer Operators

open access: yesJournal of Function Spaces, 2019
In this study, it is proposed to define bivariate Chlodowsky variant of (p,q)-Bernstein-Stancu-Schurer operators. Therefore, Korovkin-type approximation theorems and the error of approximation by using full modulus of continuity are presented.
Tuba Vedi-Dilek, Eser Gemikonakli
doaj   +1 more source

Approximation properties of the new type generalized Bernstein-Kantorovich operators

open access: yesAIMS Mathematics, 2022
In this paper, we introduce new type of generalized Kantorovich variant of α-Bernstein operators and study their approximation properties. We obtain estimates of rate of convergence involving first and second order modulus of continuity and Lipschitz ...
Mustafa Kara
doaj   +1 more source

Multiple Factorizations of Bivariate Linear Partial Differential Operators

open access: yes, 2009
We study the case when a bivariate Linear Partial Differential Operator (LPDO) of orders three or four has several different factorizations. We prove that a third-order bivariate LPDO has a first-order left and right factors such that their symbols are
A.V. Zhiber   +16 more
core   +1 more source

Wind turbine condition assessment through power curve copula modeling [PDF]

open access: yes, 2012
Power curves constructed from wind speed and active power output measurements provide an established method of analyzing wind turbine performance. In this paper it is proposed that operational data from wind turbines are used to estimate bivariate ...
Galloway, Stuart   +2 more
core   +1 more source

Approximation by One and Two Variables of the Bernstein-Schurer-Type Operators and Associated GBS Operators on Symmetrical Mobile Interval

open access: yesJournal of Function Spaces, 2021
In this article, we purpose to study some approximation properties of the one and two variables of the Bernstein-Schurer-type operators and associated GBS (Generalized Boolean Sum) operators on a symmetrical mobile interval.
Reşat Aslan, Aydın İzgi
doaj   +1 more source

Approximation of GBS Type q-Jakimovski-Leviatan-Beta Integral Operators in Bögel Space

open access: yesMathematics, 2022
In the present article, we introduce the bivariate variant of Beta integral type operators based on Appell polynomials via q-calculus. We study the local and global type approximation properties for these new operators.
Abdullah Alotaibi
doaj   +1 more source

Bivariate Bannai-Ito polynomials

open access: yes, 2018
A two-variable extension of the Bannai-Ito polynomials is presented. They are obtained via $q\to-1$ limits of the bivariate $q$-Racah and Askey-Wilson orthogonal polynomials introduced by Gasper and Rahman. Their orthogonality relation is obtained. These
Lemay, Jean-Michel, Vinet, Luc
core   +1 more source

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