Results 41 to 50 of about 82 (71)

On the approximation by convolution operators in homogeneous Banach spaces on R^d [PDF]

, 2014
AMS Subject Classification 2010: 41A25, 41A35, 41A40, 41A63, 41A65, 42A38, 42A85, 42B10, 42B20The paper presents a description of the optimal rate of approximation as well as of a broad class of functions that possess it for convolution operators acting ...
Draganov, Borislav
core  

Approximation results in Orlicz spaces by modified sampling Kantorovich operators

Demonstratio Mathematica
This paper deals with the modified sampling Kantorovich operators. We start by presenting the primary notations of Orlicz spaces and fundamental auxiliary results.
Turgay Metin
doaj   +1 more source

Nonlinear sampling Durrmeyer operators: approximation results in function spaces

Advanced Nonlinear Studies
In this paper we introduce and study the nonlinear version of sampling Durrmeyer operators. For what concerns the space of continuous functions, a pointwise and uniform convergence theorem have been established.
Travaglini Arianna, Vinti Gianluca
doaj   +1 more source

On the iterates of Jackson type operator GS,N in Hilbert space

, 2019
In this paper we study the limit of the iterates of Jackson type operator. Our results continue the works of Badea [2] and Nagler et al. [9, 10]. The proofs are based on spectral theory of linear operators and are performed at first for Hilbert space and
Zapryanova, T, Souroujon, D
core  

Hyers-Ulam stability of some positive linear operators

The present article deals with the Hyers-Ulam stability of positive linear operators in approximation theory. We discuss the HU-stability of Bernstein-Schurer type operators, Bernstein-Durrmeyer operators and find the HU-stability constant for these ...
KAUR, Jaspreet, GOYAL, Meenu
core   +1 more source

Approximation of Univariate Set-Valued Functions - an Overview [PDF]

, 2007
2000 Mathematics Subject Classification: 26E25, 41A35, 41A36, 47H04, 54C65.The paper is an updated survey of our work on the approximation of univariate set-valued functions by samples-based linear approximation operators, beyond the results reported in ...
Dyn, Nira, Mokhov, Alona, Farkhi, Elza
core  

Overiterated Linear Operator and Asymptotic Behaviour of Semigroups

, 2008
The results provided hereby are related to the asymptotic behaviour of certain strongly continuous semigroups, which may be expressed in terms of iterates of positive linear operators, in the sense of Altomare’s theory. We present some applications to
RASA I., ATTALIENTI, Antonio
core  

Complex Operators Generated by q-Bernstein Polynomials, q≥1: Dedicated to the memory of Akif D. Gadjiev

, 2016
By using an univalent and analytic function τ in a suitable open disk centered in origin, we attach to analytic functions f, the complex Bernstein-type operators of the form B_{n,q}^{τ}(f)=B_{n,q}(f∘τ⁻¹)∘τ , where B_{n,q} denote the classical complex q ...
BAȘCANBAZ-TUNCA, Gülen, ÇETIN, Nursel, GAL, Sorin G.   +2 more
core   +1 more source

On the Approximation by Convolution Operators in Homogeneous Banach Spaces of Periodic Functions

, 2011
AMS Subject Classification 2010: 41A25, 41A27, 41A35, 41A36, 41A40, 42Al6, 42A85.The paper is concerned with establishing direct estimates for convolution operators on homogeneous Banach spaces of periodic functions by means of appropriately defined ...
Draganov, Borislav R.
core  

Shape-preserving properties and asymptotic behaviour of the semigroup related to Black-Scholes equation

, 2008
The paper is devoted to a careful analysis of the shape-preserving properties of the strongly continuous semigroup generated by a particular second-order differential operator, with particular emphasis on the preservation of higher order convexity and ...
ATTALIENTI, Antonio, I. RASA
core