Results 61 to 70 of about 248 (176)

Rate of pole detection using Padé approximants to polynomial expansions

Demonstratio Mathematica
Padé approximations constructed from orthogonal and Faber polynomials on some compact set EE serve as tools to detect poles of an approximated function around the set EE.
Wajasat Methawee, Bosuwan Nattapong
doaj   +1 more source

About Uniform Regularity of Collections of Sets [PDF]

, 2013
We further investigate the uniform regularity property of collections of sets via primal and dual characterizing constants. These constants play an important role in determining convergence rates of projection algorithms for solving feasibility problems.
Kruger, Alexander Y., Thao, Nguyen H.
core  

Multipoint Padé-type approximants. Exact rate of convergence [PDF]

, 1998
14 pages, no figures.-- MSC1991 codes: Primary 41A21, 41A25; Secondary 30E10, 42C05.MR#: MR1606915 (99i:41016)Zbl#: Zbl 0896.41010We study the rate with which sequences of interpolating rational functions, whose poles are partially fixed, approximate ...
Cala, Francisco, López Lagomasino, Guillermo   +1 more
core   +1 more source

Shepard operator of least squares thin-plate spline type

, 2021
We obtain some new Shepard type operators based on the classical, the modified Shepard methods and the least squares thin-plate spline function. Given some sets of points, we compute some representative subsets of knot points following an algorithm ...
CĂTINAȘ, Teodora, MALINA, Andra
core   +1 more source

APPROXIMATING SMOOTH, MULTIVARIATE FUNCTIONS ON IRREGULAR DOMAINS

Forum of Mathematics, Sigma, 2020
In this paper, we introduce a method known as polynomial frame approximation for approximating smooth, multivariate functions defined on irregular domains in $d$ dimensions, where $d$ can be arbitrary. This method is simple, and relies only on orthogonal
BEN ADCOCK, DAAN HUYBRECHS
doaj   +1 more source

Weighted Approximation by a Class of Bernstein-Type Operators

, 2011
AMS classification: 41A36, 41A10, 41A25 ...
Parvanov, Parvan E.
core  

A General Approximation Approach for the Simultaneous Treatment of Integral and Discrete Operators

Advanced Nonlinear Studies, 2018
In this paper, we give a unitary approach for the simultaneous study of the convergence of discrete and integral operators described by means of a family of linear continuous functionals acting on functions defined on locally compact Hausdorff ...
Vinti Gianluca, Zampogni Luca
doaj   +1 more source

Теглова апроксимация с операторите на Майер-Кьониг и Целер

, 2015
[Gadjev Ivan; Гаджев Иван]AMS Subject Classification : 41A36, 41A25, 41A27 ...
Gadjev, Ivan
core  

On convergence of a kind of complex nonlinear Bernstein operators [PDF]

, 2015
The present article deals with the approximation properties and Voronovskaja type results with quantitative estimates for a certain class of com- plex nonlinear Bernstein operators (NBnf) of the form ...
KARSLI, Harun, UNAL, Esra
core  

On approximation by Stancu variant of Bernstein-Durrmeyer-type operators in movable compact disks

Demonstratio Mathematica
In this study, we introduce a kind of Stancu variant of the complex Bernstein-Durrmeyer-type operators in movable compact disks. Their approximation properties for analytic functions in the movable compact disks are investigated.
Yu Danshegn, Pang Zhaojun
doaj   +1 more source