Results 11 to 20 of about 51 (51)
Applications of the deferred generalized de la Vall´ee Poussin means in approximation of continuous functions [PDF]
In this paper we have proved a theorem which show the degree of approximation of periodic functions by some generalized means of their Fourier series. In addition, our result is extended to two-dimensional setting as well.
KRASNIQI, Xhevat Z.
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A note on the degree of approximation of functions belonging to certain Lipschitz class by almost Riesz means [PDF]
The problem of obtaining degree of approximation for the 2π−periodic functions in the weighted Lipschitz class W (Lp, ξ(t)) (p ≥ 1) by Riesz means of the Fourier series have been studied by various investigators under Lp−norm.
RATHORE, Arti, SINGH, Uaday
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Stieltjes-type polynomials on the unit circle [PDF]
29 pages, no figures.-- MSC2000 codes: Primary 65D32, 42A10, 42C05; Secondary 30E20.MR#: MR2476567Stieltjes-type polynomials corresponding to measures supported on the unit circle T are introduced and their asymptotic properties away from T are studied ...
López Lagomasino, Guillermo +2 more
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Equivalence Between K-functionals Based on Continuous Linear Transforms [PDF]
2000 Mathematics Subject Classification: 46B70, 41A10, 41A25, 41A27, 41A35, 41A36, 42A10.The paper presents a method of relating two K-functionals by means of a continuous linear transform of the function.
Draganov, Borislav, Ivanov, Kamen
core
Weyl almost periodic functions on time scales and their Fourier series
In this paper, firstly, we propose a concept of Weyl almost periodic functions on time scales by trigonometric polynomial approximation, and study some basic properties of Weyl almost periodic functions on time scales.
Li Yongkun, Huang Xiaoli
doaj +1 more source
Optimal Bell Functions for Biorthogonal Local Trigonometric Bases
A general approach for biorthogononal local trigonometric bases in the twooverlapping setting was given by Chui and Shi. In this paper, we give error estimates for the approximation with such basis functions.
Kai Bittner
core
Biorthogonal Smooth Local Trigonometric Bases
In this paper we discuss smooth local trigonometric bases. We present two generalizations of the orthogonal basis of Malvar and Coifman-Meyer: biorthogonal and equal parity bases.
Björn Jawerth, Wim Sweldens
core
Embracing off-the-grid samples. [PDF]
López O, Yılmaz Ö.
europepmc +1 more source
Accelerating the convergence of trigonometric series
Nersessian Anry, Poghosyan Arnak
doaj +1 more source
Refined quadratic estimations of Shafer's inequality. [PDF]
Nishizawa Y.
europepmc +1 more source

