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In this paper, we introduce a modification of the Szasz-Mirakjan-Kantorovich operators as well as Stancu operators [9] (or a Dunkl generalization of modified Szasz-Mirakjan-Kantrovich operators [5]) which preserve the linear functions.…

经典分析与常微分方程 · 数学 2016-04-06 M. Mursaleen , Md. Nasiruzzaman

In this paper, First we have given the modified form of (p,q)-analogues of Bernstein and Bernstein operators [21-23] and then we introduce a new analogue of Bernstein-Kantorovich operators which we call as (p,q)-Bernstein-Kantorovich…

经典分析与常微分方程 · 数学 2016-01-18 M. Mursaleen , Khursheed J. Ansari , Asif Khan

In this paper we give a unitary approach for the simultaneous study of the convergence of discrete and integral operators described by means of a family of linear continuous functionals acting on functions defined on locally compact…

泛函分析 · 数学 2017-11-28 Gianluca Vinti , Luca Zampogni

This paper offers a newly created integral approach for operators employing the orthogonal modified Laguerre polynomials and P\u{a}lt\u{a}nea basis. These operators approximate the functions over the interval $[0,\infty)$. Further, the…

泛函分析 · 数学 2024-05-14 Kapil Kumar , Naokant Deo , Durvesh Kumar Verma

On the one hand, the framework of mixed norm spaces has potential applications in different areas of mathematics. On the other hand, neural network (NN) operators are well established as approximators, attracting significant attention in…

泛函分析 · 数学 2025-09-24 Priyanka Majethiya , Shivam Bajpeyi

This paper presents a number of Kantorovich type integral inequalities involving tensor products of continuous fields of bounded linear operators on a Hilbert space. Kantorovich type inequality in which the product is replaced by an…

泛函分析 · 数学 2015-11-30 Pattrawut Chansangiam

Let $t\in(0,\infty)$, $p\in(1,\infty)$, $q\in[1,\infty]$, $w\in A_p$ and $v\in A_q$. We introduce the weighted amalgam space $(L^p,L^q)_t(\mathbb R^n)$ and show some properties of it. Some estimates on these spaces for the classical…

泛函分析 · 数学 2021-10-05 Yuan Lu , Songbai Wang , Jiang Zhou

In this paper, we introduce the nonlinear exponential Kantorovich sampling series. We establish pointwise and uniform convergence properties and a nonlinear asymptotic formula of the Voronovskaja-type given in terms of the limsup.…

泛函分析 · 数学 2025-08-12 Danilo Costarelli , Mariarosaria Natale

We give two weighted norm estimates for higher order commutator of classical operators such as singular integral and fractional type operators, between weighted $L^p$ and certain spaces that include Lipschitz, BMO and Morrey spaces. We also…

偏微分方程分析 · 数学 2020-09-29 Gladis Pradolini , Wilfredo Ramos , Jorgelina Recchi

We study approximation properties of general multivariate periodic quasi-interpolation operators, which are generated by distributions/functions $\widetilde{\varphi}_j$ and trigonometric polynomials $\varphi_j$. The class of such operators…

经典分析与常微分方程 · 数学 2021-07-27 Yurii Kolomoitsev , Jürgen Prestin

We design a quasi-interpolation operator from the Sobolev space $H^1_0(\Omega)$ to its finite-dimensional finite element subspace formed by piecewise polynomials on a simplicial mesh with a computable approximation constant. The operator 1)…

数值分析 · 数学 2025-07-17 T. Chaumont-Frelet , M. Vohralik

We deal with multivariate Brass-Stancu-Kantorovich operators depending on a non-negative integer parameter and defined on the space of all Lebesgue integrable functions on a unit hypercube. We prove $L^{p}$-approximation and provide…

经典分析与常微分方程 · 数学 2023-01-04 Gülen Başcanbaz-Tunca , Heiner Gonska

We design quasi-interpolation operators based on piecewise polynomial weight functions of degree less than or equal to $p$ that map into the space of continuous piecewise polynomials of degree less than or equal to $p+1$. We show that the…

数值分析 · 数学 2024-04-23 Thomas Führer , Manuel A. Sánchez

In this paper we develop a general theoretical tool for the establishment of the boundedness of notoriously difficult operators (such as potentials) on certain specific types of rearrangement-invariant function spaces from analogous…

泛函分析 · 数学 2026-02-16 Zdeněk Mihula , Luboš Pick , Daniel Spector

By extending the classical quantitative approximation results for positive and linear operators in $L^{p}([0, 1]), 1\le p \le +\infty$ of Berens and DeVore in 1978 and of Swetits and Wood in 1983 to the more general case of sublinear,…

泛函分析 · 数学 2022-12-05 Sorin G. Gal , Constantin P. Niculescu

This article starts with the fundamental theory of stochastic type convergence and the significance of uniform integrability in the context of expectation value. A novel probabilistic sampling kantorovich (PSK-operators) is established with…

综合数学 · 数学 2025-06-17 Digvijay Singh , Rahul Shukla , Karunesh Kumar Singh

The concept of mixed norm spaces has emerged as a significant interest in fields such as harmonic analysis. In addition, the problem of function approximation through sampling series has been particularly noteworthy in the realm of…

泛函分析 · 数学 2025-07-24 Priyanka Majethiya , Shivam Bajpeyi , Dhiraj Patel

The present paper concerns filtered de la Vall\'ee Poussin (VP) interpolation at the Chebyshev nodes of the four kinds. This approximation model is interesting for applications because it combines the advantages of the classical Lagrange…

数值分析 · 数学 2021-01-13 D. Occorsio , W. Themistoclakis

In the present article, we analyse the behaviour of a new family of Kantorovich type sampling operators $(K_w^{\varphi}f)_{w>0}.$ First, we give a Voronovskaya type theorem for these Kantorovich generalized sampling series and a…

经典分析与常微分方程 · 数学 2017-09-12 A. Sathish Kumar , P. Devaraj

The main aim of this study is to introduce statistical approximation properties of (p; q)-Szasz Mirakjan Kantorovich operators with the help of the Korovkin type statistical approximation theorem. Rates of statistical convergence by means…

经典分析与常微分方程 · 数学 2016-04-19 Bhausaheb R. Sontakke , Amjad Shaikh