Results 11 to 20 of about 8,464,085 (281)

Some generalizations of operator inequalities for positive linear maps

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we generalize some operator inequalities for positive linear maps due to Lin (Stud. Math. 215:187-194, 2013) and Zhang (Banach J. Math. Anal. 9:166-172, 2015).
Jianming Xue, Xingkai Hu
doaj   +2 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

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

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

Certain integral inequalities involving tensor products, positive linear maps, and operator means

open access: yesJournal of Inequalities and Applications, 2016
We present a number of integral inequalities involving tensor products of continuous fields of bounded linear operators, positive linear maps, and operator means.
Pattrawut Chansangiam
doaj   +2 more sources

The Strong Approximation by Linear Positive Operator In terms of the Averaged Modulus of Order One [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2014
In this work, we introduceBernst-ein linear positive operatorsB_(n,k) (f,x) in the space of all continuous functionsC_I where I=[0,1] with some properties of this operator so to find the strongapproxi- mation of continuous functions with the averaged ...
Zainab Esa Abdul Naby
doaj   +3 more sources

Eventually positive semigroups of linear operators

open access: yesJournal of Mathematical Analysis and Applications, 2016
We develop a systematic theory of eventually positive semigroups of linear operators mainly on spaces of continuous functions. By eventually positive we mean that for every positive initial condition the solution to the corresponding Cauchy problem is positive for large enough time.
James B Kennedy   +2 more
exaly   +4 more sources

New Inequalities of the Kantorovich Type for Bounded Linear Operators in Hilbert Spaces [PDF]

open access: yes, 2006
Some new inequalities of the Kantorovich type are established. They hold for larger classes of operators and subsets of complex numbers than considered before in the literature and provide refinements of the classical results in the case when the ...
Dragomir, Sever S
core   +5 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

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