Results 11 to 20 of about 4,077 (248)

The approximation of bivariate functions by modified bivariate operators and GBS operators associated

Journal of Numerical Analysis and Approximation Theory, 2012
In this paper we demonstrate a Voronovskaja-type theorem and approximation theorem for a class of modified operators and Generalized Boolean Sum (GBS) associated operators obtained (see (3)) from given operators.
Ovidiu T. Pop
doaj   +4 more sources

Bivariate Positive Operators in Polynomial Weighted Spaces [PDF]

Abstract and Applied Analysis, 2013
This paper aims to two-dimensional extension of some univariate positive approximation processes expressed by series. To be easier to use, we also modify this extension into finite sums.
Octavian Agratini
doaj   +3 more sources

On some bivariate spline operators

Journal of Numerical Analysis and Approximation Theory, 1979
Not available.
P. Blaga, Gh. Coman
doaj   +4 more sources

Bivariate Shepard–Bernoulli operators [PDF]

Mathematics and Computers in Simulation, 2017
In this paper we extend the Shepard-Bernoulli operators introduced in [6] to the bivariate case. These new interpolation operators are realized by using local support basis functions introduced in [23] instead of classical Shepard basis functions and the bivariate three point extension [13] of the generalized Taylor polynomial introduced by F ...
Dell'accio, Francesco, Di Tommaso, Filomena   +1 more
openaire   +2 more sources

Bivariate Cheney-Sharma operators on simplex [PDF]

Hacettepe Journal of Mathematics and Statistics, 2017
In this paper, we consider bivariate Cheney-Sharma operators which are not the tensor product construction. Precisely, we show that these operators preserve Lipschitz condition of a given Lipschitz continuous function f and also the properties of the modulus of continuity function when f is a modulus of continuity function.
BAŞCANBAZ-TUNCA, Gülen, ERENÇİN, Ayşegül, İNCE-ݝLARSLAN, Hatice Gül   +2 more
openaire   +5 more sources

On the bivariate Shepard–Lidstone operators

Journal of Computational and Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CAIRA R, DELL'ACCIO, Francesco, DI TOMMASO F.   +2 more
openaire   +2 more sources

On bivariate Bernstein-Chlodowsky operators [PDF]

Journal of Classical Analysis, 2016
Summary: This work relates to the bivariate Bernstein-Chlodowsky operator which is not a tensor product construction. We show that the operator preserves some properties of the original function, for example, function of modulus of continuity, Lipschitz constant, and a kind of monotony.
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Bivariate Bernstein type operators

Applied Mathematics and Computation, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gülen Bascanbaz Tunca, Hatice Gül Ince-Ilarslan, Aysegül Erençin   +2 more
openaire   +5 more sources

On Some Bivariate Gauss-Weierstrass Operators

Constructive 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
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About the bivariate operators of Durrmeyer-type

Demonstratio Mathematica, 2009
AbstractThe aim of this paper is to study the convergence and approximation properties of the bivariate operators and GBS operators of Durrmeyer-type.
Ovidiu T. Pop, Mircea D. Fărcaş
openaire   +1 more source