Results 21 to 30 of about 8,919 (268)

On the Generalized Baskakov Durrmeyer Operators

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
The main object of this paper is to construct Baskakov Durrmeyer type operators such that their construction depends on a function ρ. Using the weighted modulus of continuity, we show the uniform convergence of the operators. Moreover we obtain pointwise
Gülsüm Ulusoy
doaj   +1 more source

ON AN ESTIMATE FOR THE MODULUS OF CONTINUITY OF A NONLINEAR INVERSE PROBLEM

open access: yesUral Mathematical Journal, 2015
A reverse time problem is considered for a semilinear parabolic equation. Two-sided estimates are obtained for the norms of values of a nonlinear operator in terms of the norms of values of the corresponding linear operator.
Elena V. Tabarintseva
doaj   +1 more source

Kolmogorov inequalities for norms of Marchaud-type fractional derivatives of multivariate functions

open access: yesResearches in Mathematics, 2020
We obtain new sharp Kolmogorov type inequalities, estimating the norm of mixed Marchaud type derivative of multivariate function through the C-norm of function itself and its norms in Hölder spaces.
N.V. Parfinovych, V.V. Pylypenko
doaj   +1 more source

SOME INEQUALITIES BETWEEN THE BEST SIMULTANEOUS APPROXIMATION AND MODULUS OF CONTINUITY IN THE WEIGHTED BERGMAN SPACE

open access: yesUral Mathematical Journal, 2023
Some inequalities between the best simultaneous approximation of functions and their intermediate derivatives, and the modulus of continuity in a weighted Bergman space are obtained. When the weight function is \(\gamma(\rho)=\rho^\alpha,\) \(\alpha>0\),
Muqim S. Saidusainov
doaj   +1 more source

Approximation properties of generalized Baskakov–Schurer–Szasz–Stancu operators preserving e−2ax,a>0 $e^{-2ax}, a>0$

open access: yesJournal of Inequalities and Applications, 2019
The current paper deals with a modified form of the Baskakov–Schurer–Szasz–Stancu operators which preserve e−2ax $e^{-2ax}$ for a>0 $a>0$. The uniform convergence of the modified operators is shown.
Melek Sofyalıoğlu, Kadir Kanat
doaj   +1 more source

$\text{TT}^{\Box}_{\mathcal C}$: a Family of Extensional Type Theories with Effectful Realizers of Continuity [PDF]

open access: yesLogical Methods in Computer Science
$\text{TT}^{\Box}_{{\mathcal C}}$ is a generic family of effectful, extensional type theories with a forcing interpretation parameterized by modalities.
Liron Cohen, Vincent Rahli
doaj   +1 more source

Application of the Modulus of Continuity in Characterizing Geodesics

open access: yesپژوهش‌های ریاضی, 2020
Introduction This paper concerns an application of the modulus of continuity in characterizing geodesics. The modulus of continuity of a continuous function between metric spaces is a two variable function which assigns to each point and to each positive
Hojjat Farzadfard
doaj  

Modulus of continuity estimates for fully nonlinear parabolic equations [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2021
We prove that the moduli of continuity of viscosity solutions to fully nonlinear parabolic partial differential equations are viscosity subsolutions of suitable parabolic equations of one space variable. As applications, we obtain sharp Lipschitz bounds and gradient estimates for fully nonlinear parabolic equations with bounded initial data, via ...
openaire   +2 more sources

Best Multiplier Approximation of Unbounded Periodic Functions in L_(p,∅_n ) (B),B=[0,2π] Using Discrete Linear Positive Operators

open access: yesمجلة بغداد للعلوم, 2020
The purpose of this paper is to find the best multiplier approximation of unbounded functions in    –space by using some discrete linear positive operators.
Saheb AL- Saidy   +2 more
doaj   +1 more source

Bernstein Polynomials and Modulus of Continuity

open access: yesJournal of Approximation Theory, 2000
The author describes several properties related to the first order modulus of continuity, which are preserved by the operator given by Bernstein polynomials. Let the function \(\omega(t)\) on \([0,1]\) be a modulus of continuity. By \(H^\omega\) we denote the class of continuous functions on \([0,1]\) satisfying the inequality \(\omega(f,t)\leq\omega(t)
openaire   +2 more sources

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