Results 1 to 10 of about 8,645,321 (278)

A Voronovskaya-type theorem for a positive linear operator [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We consider a sequence of positive linear operators which approximates continuous functions having exponential growth at infinity.
Alexandra Ciupa
doaj   +3 more sources

Generalized Refinements of Reversed AM-GM Operator Inequalities for Positive Linear Maps

open access: yesAxioms, 2023
We shall present some more generalized and further refinements of reversed AM-GM operator inequalities for positive linear maps due to Xue’s and Ali’s publications.
Yonghui Ren
doaj   +2 more sources

On the Iterates of Positive Linear Operators

open access: yesJournal of Approximation Theory, 2011
Let \(U\) be a positive linear operator on \(C[0,1]\) that leaves the linear functions, \(P^1\), invariant. The paper presents a simple short proof of the following: Theorem: If there is a continuous function \(f\) such that \(Uf-f\) has no zeros in \((1,0)\) then \(U^k g\) converges to the projection onto \(P^1\) that interpolates to \(g\) at \(0 ...
Dumitru Mircea Ivan, Ioan Gavrea
exaly   +4 more sources

Summation Process of Positive Linear Operators

open access: yesComputers and Mathematics With Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
C Orhan
exaly   +4 more sources

Means of Positive Linear Operators

open access: yesMathematische Annalen, 1980
Tsuyoshi Andô
exaly   +2 more sources

Differences of Positive Linear Operators on Simplices [PDF]

open access: yesJournal of Function Spaces, 2021
The aim of the paper is twofold: we introduce new positive linear operators acting on continuous functions defined on a simplex and then estimate differences involving them and/or other known operators. The estimates are given in terms of moduli of smoothness and K ...
Ana-Maria Acu   +2 more
openaire   +2 more sources

Improvements of operator reverse AM-GM inequality involving positive linear maps

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we shall present some reverse arithmetic-geometric mean operator inequalities for unital positive linear maps. These inequalities improve some corresponding results due to Xue (J. Inequal. Appl. 2017:283, 2017).
Shazia Karim   +2 more
doaj   +1 more source

The Generalized Inequalities via Means and Positive Linear Mappings [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
In this paper, we establish further improvements  of the Young inequality and its reverse. Then, we assert operator versions corresponding them. Moreover, an application including positive linear mappings is given.
Leila Nasiri, Mehdi Shams
doaj   +1 more source

More on the extension of linear operators on Riesz spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The classical Kantorovich theorem asserts the existence and uniqueness of a linear extension of a positive additive mapping, defined on the positive cone $E^+$ of a Riesz space $E$ taking values in an Archimedean Riesz space $F$, to the entire space $E$.
O.G. Fotiy, A.I. Gumenchuk, M.M. Popov
doaj   +1 more source

On a New Generalization of Bernstein-Type Rational Functions and Its Approximation

open access: yesMathematics, 2022
In this study, we introduce a new generalization of a Bernstein-type rational function possessing better estimates than the classical Bernstein-type rational function.
Esma Yıldız Özkan, Gözde Aksoy
doaj   +1 more source

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