Results 11 to 20 of about 1,228,075 (363)

A Class of Positive Linear Operators [PDF]

open access: bronzeCanadian Mathematical Bulletin, 1968
Let F[a, b] be the linear space of all real valued functions defined on [a, b]. A linear operator L: C[a, b] → F[a, b] is called positive (and hence monotone) on C[a, b] if L(f)≥0 whenever f≥0. There has been a considerable amount of research concerned with the convergence of sequences of the form {Ln(f)} to f where {Ln} is a sequence of positive ...
J. P. King
openalex   +3 more sources

On the Jensen’s inequality and its variants

open access: yesAIMS Mathematics, 2020
The main purpose of this paper is to discuss operator Jensen inequality for convex functions, without appealing to operator convexity. Several variants of this inequality will be presented, and some applications will be shown too.
Elahe Jaafari   +3 more
doaj   +1 more source

Estimates for Tsallis relative operator entropy [PDF]

open access: yes, 2017
We give the tight bounds of Tsallis relative operator entropy by using Hermite-Hadamard's inequality. Some reverse inequalities related to Young inequalities are also given.
Furuichi, Shigeru   +2 more
core   +1 more source

OSQP: an operator splitting solver for quadratic programs [PDF]

open access: yesMathematical Programming Computation, 2017
We present a general-purpose solver for convex quadratic programs based on the alternating direction method of multipliers, employing a novel operator splitting technique that requires the solution of a quasi-definite linear system with the same ...
Bartolomeo Stellato   +4 more
semanticscholar   +1 more source

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   +1 more source

Some operator mean inequalities for sector matrices

open access: yesAIMS Mathematics, 2022
In this article, we obtain some operator mean inequalities of sectorial matrices involving operator monotone functions. Among other results, it is shown that if $ A, B\in\mathbb{M}_n(\mathbb{C}) $ are such that $ W(A), W(B)\subseteq S_{\alpha} $, $ f, g,
Chaojun Yang
doaj   +1 more source

Positive linear operators and summability [PDF]

open access: yesJournal of the Australian Mathematical Society, 1970
Let {Ln} be a sequence of positive linear operators defined on C[a, b] of the form where xnk ∈ [a, b] for each k = 0, 1,…, n = 1, 2,…. The convergence properties of the sequences {Ln(f)} to for each f ∈ C[a, b] have been the object of much recent research (see e.g. [4], [8], [11], [13]).
King, J. P., Swetits, J. J.
openaire   +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

Non-linear eigenvalue problems arising from growth maximization of positive linear dynamical systems [PDF]

open access: yesIEEE Conference on Decision and Control, 2014
We study a growth maximization problem for a continuous time positive linear system with switches. This is motivated by a problem of mathematical biology: modeling growth-fragmentation processes and the PMCA protocol (Protein Misfolding Cyclic ...
V. Calvez, Pierre Gabriel, S. Gaubert
semanticscholar   +1 more source

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