Linear operators that preserve some test functions
Abstract The paper centers around a pair of sequences of linear positive operators. The former has the degree of exactness…
Approximation Theory
On the convergence of a truncated class of operators
Abstract In this paper we are dealing with a general class of positive approximation processes of discrete type expressed in…
On some Bernstein type operators: iterates and generalizations
Abstract The present paper focuses on two approaches. Firstly, by using the contraction principle, we give a method for obtaining…
Iterates of some bivariate approximation process via weakly Picard operators
Abstract In the present paper we introduce a general class of positive operators of discrete type acting on the space…
Iterates of a class of discrete linear operators via contraction principle
Abstract In this paper we are concerned with a general class of positive linear operators of discrete type. Based on…
On approximation properties of Balázs-Szabados operators their Kantorovich extension
Abstract In this paper we deal with a sequence of positive linear operators \(\ R_{n}^{\left[ \beta \right] }\) approximating functions…
Stancu modified operators revisited
Abstract In this paper we construct a general positive approximation process representing an integral form in Kantorovich sense of the…
Approximation operators – solutions and questions
Abstract The paper gartes some results concerning linear approximation operators and it raises three open problems. AuthorsOctavian Agratini Department of…
On some wavelet type linear operators
Abstract In this paper is introduced a general a class \(\left( L_{k}\right)_{k\in\mathbb{Z}}\) of linear positive operators of wavelet type. The…
The mysterious wavelets world
Abstract This survey paper contains the basic ideas of windowed Fourier transform, wavelet transform, wavelet bases and multiresolution analysis, providing…