Results 61 to 70 of about 173,280,044 (84)
The central approximation theorems for Baskakov–Be´zier operators
, 2007 For Baskakov–Be´zier operators we give the direct, inverse and equivalence approximation theorems with unified Ditzian–Totik modulus ωϕλ(f,t)(0≤λ≤1)
Guo, Shunsheng, Qi, Qiulan, Liu, Guofen
core +1 more source
Genuine modified Bernstein-Durrmeyer operators. [PDF]
J Inequal Appl, 2018 Mohiuddine SA, Acar T, Alghamdi MA.
europepmc +1 more source
Minimax Estimation of Functionals of Discrete Distributions. [PDF]
IEEE Trans Inf Theory, 2015 Jiao J, Venkat K, Han Y, Weissman T.
europepmc +1 more source
QUANTITATIVE ESTIMATES FOR MODIFIED BETA OPERATORS
, 2019 In this paper, we introduce a sequence of positive linear Beta type operators based on a function tau having certain properties. We firstly give some approximation properties of these operators. Next, we establish Voronovskaja type and Gruss-Voronovskaja
Bascanbaz-Tunca, Gulen +2 more
core
Una caracterización del primer módulo de Ditzian-Totik
, 2005 En el trabajo, se presenta un nuevo método para obtener una caracterización del módulo de suavidad de primer orden de Ditzian-Totik, en términos de una K-funcional. La importancia de este nuevo métoodo, radica en el hecho de que permite obtener estimados
Bustamante González, Jorge +1 more
core
APPROXIMATION BY THE SUMMATION INTEGRAL TYPE OPERATORS BASED ON LUPAS-SZASZ BASIS FUNCTIONS
, 2018 In this paper, the summation integral type operators based on Lupas and Szasz basis functions are introduced. The degree of approximation of these operators is examined in terms of Ditzian-Totik modulus of smoothness and corresponding K-functional.
İSPİR, NURHAYAT, Manav, Nesibe
core
The degree of coconvex polynomial approximation
, 1999 . Let f ∈ C[−1, 1] change its convexity finitely many times in the interval, say s times, at Ys: −1 <y1 <···<ys <1. We estimate the degree of approximation of f by polynomials of degree n, which change convexity exactly at the points Ys.
I. A. Shevchuk +3 more
core
A Property of Ditzian–Totik Second Order Moduli
Applied Mathematics Letters, 2010 For a function f∈C2[0,1], we prove that limt→0+ωφ2(f,t)t2=‖φ2f″‖, where ωφ2(f,t) denotes a Ditzian–Totik-type modulus of order 2. We apply this result to obtain an asymptotic property for positive linear operators related to Voronovskaja type ...
José M A Quesada, Jorge Bustamante
exaly +2 more sources
Asymptotic and Non-Asymptotic Results in the Approximation by Bernstein Polynomials [PDF]
Results in Mathematics, 2022 This paper deals with the approximation of functions by the classical Bernstein polynomials in terms of the Ditzian–Totik modulus of smoothness.
Daniel Cárdenas-Morales, José A Adell
exaly +2 more sources
Smoothness Properties of Modified Bernstein-Kantorovich Operators
Numerical Functional Analysis and Optimization, 2016 In this article, we consider modified Bernstein-Kantorovich operators and investigate their approximation properties. We show that the order of approximation to a function by these operators is at least as good as that of ones classically used. We obtain
Oktay Duman, Mehmet Ali Özarslan
exaly +2 more sources