Results 41 to 50 of about 105 (90)

A kind of univariate improved Shepard-Euler operators

Open Mathematics
In this paper, a kind of univariate Shepard-Euler operators is studied by combining the known Shepard operator with the generalized Taylor polynomial as the expansion in the Euler polynomials.
Wu Ruifeng
doaj   +1 more source

Shapiro’s problem on polynomials with large partial sums of coefficients

Forum of Mathematics, Sigma
Given a polynomial $\sum _\nu a_\nu X^\nu $ of degree $
Marc Technau
doaj   +1 more source

Stability results for approximation by positive definite functions on compact groups

, 2008
We consider interpolation methods defined by positive definite functions on a compact group. Estimates for the smallest and largest eigenvalue of the interpola- tion matrix in terms of the localization of the positive definite function on G are ...
Filbir, F., Dominik Schmid, Schmid, D., Frank Filbir   +3 more
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Approximation by weighted Durrmeyer-type max-product neural network operators

Demonstratio Mathematica
This paper introduces a class of weighted Durrmeyer-type max-product neural network operators, which generalize the Kantorovich variant by incorporating a flexible weight function.
Wu Yile, Yu Dansheng
doaj   +1 more source

Some classes of surfaces generated by Nielson and Marshall type operators on the triangle with one curved side: Dedicated to Professor Gheorghe Coman on the occasion of his 80th anniversary

, 2016
We construct some classes of surfaces which satisfy some given conditions, using some Hermite, Nielson and Marshall type interpolation operators defined on a triangle with one curved side.
CĂTINAȘ, Teodora
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Approximation by interpolation operators with piecewise polynomial basis functions

Demonstratio Mathematica
This paper focuses on approximation by interpolation operators with piecewise polynomial basis functions. It first shows that the interpolation operator introduced by Zhan, Huang and Liu (A class of interpolation basis functions with excellent properties,
Mei Ying, Yu Dansheng
doaj   +1 more source

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

Computational aspects of multivariate Polynomial Interpolation

, 1995
The paper is concerned with the practical implementation of two methods to compute the solution of polynomial interpolation problems. In addition to a description of the implementation, practical results and several improvements will be discussed ...
Thomas Sauer
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Sobolev Type Decomposition of Paley-Wiener-Schwartz Space with Application to Sampling Theory [PDF]

, 2007
2000 Mathematics Subject Classification: 94A12, 94A20, 30D20, 41A05.We characterize Paley-Wiener-Schwartz space of entire functions as a union of three-parametric linear normed subspaces determined by the type of the entire functions, their polynomial ...
Dryanov, Dimiter
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Неравенства от тип на Дафин и Шефер II

, 2003
[Nikolov Geno; Николов Гено]Mathematics Subject Classification: 41A05 ...
Nikolov, Geno
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