Results 11 to 20 of about 1,694 (263)

Further generalizations of Hadamard and Fejér–Hadamard fractional inequalities and error estimates

open access: yesAdvances in Difference Equations, 2020
The aim of this paper is to generalize the fractional Hadamard and Fejér–Hadamard inequalities. By using a generalized fractional integral operator containing extended Mittag-Leffler function via monotone function, for convex functions we generalize well
Yongsheng Rao   +4 more
doaj   +1 more source

Convex and monotone operator functions [PDF]

open access: yesAnnales Polonici Mathematici, 1995
This paper characterizes operator convex and operator monotone functions in two variables. An alternative proof of a two-variable analogue of Loewners theorem for operator monotone functions of one variable due to \textit{A. Korányi} [Trans. Am. Math. Soc. 101, 520-554 (1961; Zbl 0111.11501)] and \textit{H. Vasudeva} [ibid. 176, 305-318 (1973; Zbl 0261.
Aujla, Jaspal Singh, Vasudeva, H. L.
openaire   +2 more sources

A Note on Real Operator Monotone Functions [PDF]

open access: yesInternational Mathematics Research Notices, 2020
Abstract In this paper, we initiate the study of real operator monotonicity for functions of tuples of operators, which are multivariate structured maps with a functional calculus called free functions that preserve the order between real parts (or Hermitian parts) of bounded linear Hilbert space operators.
Gaál, Marcell Gábor, Pálfia, Miklós
openaire   +3 more sources

Unique iterative positive solutions for a singular p-Laplacian fractional differential equation system with infinite-point boundary conditions

open access: yesBoundary Value Problems, 2019
By using the method of mixed monotone operator, a unique positive solution is obtained for a singular p-Laplacian boundary value system with infinite-point boundary conditions in this paper.
Limin Guo, Lishan Liu
doaj   +1 more source

Extensions of Monotone Operator Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
It is shown that a monotone operator function f f defined on an open subset Δ \Delta of the real numbers may be extended to a monotone operator function on the convex hull of Δ \Delta .
openaire   +1 more source

MONOTONE OPERATOR FUNCTIONS ON C*-ALGEBRAS

open access: yesInternational Journal of Mathematics, 2005
The article is devoted to investigation of classes of functions monotone as functions on general C*-algebras that are not necessarily the C*-algebra of all bounded linear operators on a Hilbert space as in classical case of matrix and operator monotone functions.
Osaka, Hiroyuki   +2 more
openaire   +2 more sources

A Halpern-Type Iteration Method for Bregman Nonspreading Mapping and Monotone Operators in Reflexive Banach Spaces

open access: yesJournal of Mathematics, 2019
In this paper, we introduce an iterative method for approximating a common solution of monotone inclusion problem and fixed point of Bregman nonspreading mappings in a reflexive Banach space.
F. U. Ogbuisi   +2 more
doaj   +1 more source

Strongly Convex Functions of Higher Order Involving Bifunction

open access: yesMathematics, 2019
Some new concepts of the higher order strongly convex functions involving an arbitrary bifuction are considered in this paper. Some properties of the higher order strongly convex functions are investigated under suitable conditions.
Bandar B. Mohsen   +3 more
doaj   +1 more source

Some operator monotone functions [PDF]

open access: yesLinear Algebra and its Applications, 2009
We prove that the functions t -> (t^q-1)(t^p-1)^{-1} are operator monotone in the positive half-axis for 0 < p < q < 1, and we calculate the two associated canonical representation formulae. The result is used to find new monotone metrics (quantum Fisher information) on the state space of quantum systems.
openaire   +4 more sources

On Two Iterative Methods for Mixed Monotone Variational Inequalities

open access: yesFixed Point Theory and Applications, 2010
A mixed monotone variational inequality (MMVI) problem in a Hilbert space H is formulated to find a point u∗∈H such that 〈Tu∗,v−u∗〉+φ(v)−φ(u∗)≥0 for all v∈H ...
Xiwen Lu, Hong-Kun Xu, Ximing Yin
doaj   +2 more sources

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