Results 21 to 30 of about 165,958,490 (290)

Parametric Extension of a Certain Family of Summation-Integral Type Operators

open access: yesCumhuriyet Science Journal, 2023
In this paper, we introduce a parametric extension of a certain family of summation-integral type operators on the interval [0,∞). Firstly, we obtain test functions and central moments. Secondly, we investigate weighted approximation properties for these
İsmet Yüksel, Nadire Fulda Odabaşı
doaj   +1 more source

On the integral modulus of continuity of Fourier series [PDF]

open access: yesProceedings of the Indian Academy of Sciences - Section A, 1988
AbstractFor a wide class of sine trigonometric series we obtain an estimate for the integral modulus of continuity.
Ram, Babu, Kumari, Suresh
openaire   +2 more sources

An analysis of the elastic properties of a porous aluminium oxide film by means of indentation techniques [PDF]

open access: yes, 2013
The elastic modulus of thin films can be directly determined by instrumented indentation when the indenter penetration does not exceed a fraction of the film thickness, depending on the mechanical properties of both film and substrate.
LOUIS, G.   +15 more
core   +1 more source

On the Approximation of Periodic Functions in L2 and the Values of the Widths of Certain Classes of Functions

open access: yesМоделирование и анализ информационных систем, 2015
The sharp Jackson–Stechkin inequalities are received, in which a special module of continuity Ωem(f;t) determined by Steklov’s function is used instead the usual modulus of continuity of mth order ωm(f;t).
K. Tukhliev
doaj   +1 more source

Approximate properties of Abel-Poisson integrals on classes of differentiable functions defined by moduli of continuity

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
The paper deals with the problem of approximation in the uniform metric of $W^{1}H_{\omega}$ classes using one of the classical linear summation methods for Fourier series given by a set of functions of a natural argument, namely, using the Abel-Poisson ...
Yu.I. Kharkevych, T.A. Stepaniuk
doaj   +1 more source

A new kind of Bernstein-Schurer-Stancu-Kantorovich-type operators based on q-integers

open access: yesJournal of Inequalities and Applications, 2017
Agrawal et al. (Boll. Unione Mat. Ital. 8:169-180, 2015) introduced a Stancu-type Kantorovich modification of the operators proposed by Ren and Zeng (Bull. Korean Math. Soc.
Ruchi Chauhan   +2 more
doaj   +1 more source

Luzin's condition (N) and modulus of continuity [PDF]

open access: yesAdvances in Calculus of Variations, 2014
Abstract In this paper, we establish Luzin's condition (N) for mappings in certain Sobolev–Orlicz spaces with certain moduli of continuity. Further, given a mapping in these Sobolev–Orlicz spaces, we give bounds on the size of the exceptional set where Luzin's condition (N) may fail.
Malý, Jan   +2 more
openaire   +3 more sources

Approximation results on Dunkl generalization of Phillips operators via q-calculus

open access: yesAdvances in Difference Equations, 2019
The main purpose of this paper is to construct q-Phillips operators generated by Dunkl generalization. We prove several results of Korovkin type and estimate the order of convergence in terms of several moduli of continuity.
Md. Nasiruzzaman   +2 more
doaj   +1 more source

On functions of van der Waerden type [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023
Let $\omega(t)$ be an arbitrary modulus of continuity type function, such that $\omega(t)/t\to+\infty$, as $t\to+0$. We construct a continuous nowhere-differentiable function $V_\omega(x)$, $x\in[0;1]$, that satisfies the following conditions: 1)  ...
Rubinstein, Aleksandr I.   +1 more
doaj   +1 more source

On L2 modulus of continuity of Brownian local times and Riesz potentials [PDF]

open access: yes, 2015
International audienceThis article is concerned with modulus of continuity of Brownian local times. Specifically, we focus on 3 closely related problems: (a) Limit theorem for a Brownian modulus of continuity involving Riesz potentials, where the limit ...
Nualart, David   +2 more
core   +1 more source

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