Results 1 to 10 of about 1,307,841 (207)

Degree of Approximation by Hybrid Operators [PDF]

open access: yesAbstract and Applied Analysis, 2013
We consider hybrid (Szász-beta) operators, which are a general sequence of integral type operators including beta function, and we give the degree of approximation by these Szász-beta-Durrmeyer operators.
Naokant Deo, Hee Sun Jung, Ryozi Sakai
doaj   +4 more sources

Lower bounds for the degree of approximation [PDF]

open access: yesTransactions of the American Mathematical Society, 1960
is the optimal degree of approximation of 2W. In this paper we shall give simple methods which permit to find the order of magnitude of Dn(W) for several important classes ?1: for some classes of analytic functions (?6); for the unit ball AP+a of the space CP+a of functions with continuous derivatives of order p, which satisfy a Lipschitz condition ...
G. Lorentz
semanticscholar   +2 more sources

Approximation degree of Durrmeyer–Bézier type operators

open access: yesJournal of Inequalities and Applications, 2018
Recently, a mixed hybrid operator, generalizing the well-known Phillips operators and Baskakov–Szász type operators, was introduced. In this paper, we study Bézier variant of these new operators.
Purshottam N. Agrawal   +3 more
doaj   +2 more sources

On the degree of approximation by Szász operators [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1981
The aim of the present note is to give the degree of approximation by Szász operators.
Suresh P. Singh
semanticscholar   +2 more sources

Degree of Approximation on a Jordan Curve. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1952
J. Walsh, H. Elliott
semanticscholar   +3 more sources

Degree of Approximation by Rational Functions with Prescribed Numerator Degree

open access: yesCanadian Journal of Mathematics, 1994
AbstractWe prove a Jackson type theorem for rational functions with prescribed numerator degree: For continuous functions f: [—1,1] —> ℝ with ℓ sign changes in (—1,1), there exists a real rational function Rℓ,n(x) with numerator degree ℓ and denominator degree at most n, that changes sign exactly where f does, and such thatHere C is independent of f,
D. Leviatan, D. Lubinsky
semanticscholar   +3 more sources

Degree of approximation by monotone polynomials I

open access: yesJournal of Approximation Theory, 1968
G. Lorentz, K. Zeller
semanticscholar   +3 more sources

On the degree of approximation of Fourier series based on a certain class of product deferred summability means

open access: yesJournal of Inequalities and Applications, 2023
In this article, we first introduce and study the basic concepts of deferred Euler and deferred Nörlund product summability means of Fourier series of arbitrary periodic functions.
B. Jena, S. Paikray, M. Mursaleen
semanticscholar   +1 more source

Better degree of approximation by modified Bernstein-Durrmeyer type operators

open access: yesMathematical Foundations of Computing, 2022
In the present article we investigate a Durrmeyer variant of the generalized Bernstein-operators based on a function \begin{document}$ \tau(x), $\end{document} where \begin{document}$ \tau $\end{document} is infinitely differentiable function on \begin ...
P. Agrawal, S. Güngör, Abhishek Kumar
semanticscholar   +1 more source

Low-Degree Approximation of Random Polynomials [PDF]

open access: yesFoundations of Computational Mathematics, 2021
AbstractWe prove that with “high probability” a random Kostlan polynomial in $$n+1$$ n + 1 many variables and of degree d can be approximated by a polynomial of “low degree” without changing the topology of its zero set on the sphere ...
Diatta, Daouda Niang, Lerario, Antonio
openaire   +3 more sources

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