On the existence and uniqueness of extensions of semi-Holder real-valued functions
Abstract Let \((X,d)\) be a quasi-metric space, \(y_{0}\in X\) a fixed element and \(Y\) a subset of \(X\) such that…
Approximation Theory
Sandwich theorems for radiant functions
Abstract We show that between two graphs, one of a radiant function and the other of a coradiant, both defined…
On q-Baskakov-Mastroianni operators
Abstract The aim of the paper is to investigate a qanalogue of a general class of linear positive operators defined…
A-statistical convergence of a class of integral operators
Abstract Starting from a general sequence of linear and positive operators of summation integral type, we associate its r-th order…
Bivariate positive operators in polynomial weighted spaces
Abstract This paper aims to two-dimensional extension of some univariate positive approximation processes expressed by series. To be easier to…
On a double complex sequence of linear operators
Abstract The main goal of the article is to introduce a class of double complex linear operators of integral type.…
Approximation of bivariate functions by truncated classes of operators
Abstract Starting from a general class of positive approximation processes of discrete type expressed by series, we indicate a way…
Approximation properties of a class of linear operators
Abstract This work focuses on a class of linear positive operators of discrete type. We present the relationship between the…
Approximation by Bézier variant of the Baskakov-Kantorovich operators in the case 0<α<1
Abstract The present paper deals with the approximation of Bezier variants of Baskakov-Kantorovich operators \(V_{n,\alpha}^{\ast}\) in the case \(0<\alpha<1\). Pointwise…
On an approximation process of integral type
Abstract In this paper we study a class of integral type positive linear operators depending on a parameter \(\beta,0\leq\beta<1\). Approximation…