Results 1 to 10 of about 4,859 (157)

New progress on the operator inequalities involving improved Young’s and its reverse inequalities relating to the Kantorovich constant [PDF]

open access: goldJournal of Inequalities and Applications, 2017
The purpose of this paper is to give a survey of the progress, advantages and limitations of various operator inequalities involving improved Young’s and its reverse inequalities related to the Kittaneh-Manasrah inequality.
Jie Zhang, Junliang Wu
doaj   +7 more sources

New Refinement of the Operator Kantorovich Inequality [PDF]

open access: goldMathematics, 2019
We focus on the improvement of operator Kantorovich type inequalities. Among the consequences, we improve the main result of the paper [H.R. Moradi, I.H. Gümüş, Z.
Hamid Reza Moradi   +2 more
doaj   +4 more sources

Operator inequalities associated with Hölder–McCarthy and Kantorovich inequalities

open access: greenJournal of Inequalities and Applications, 1998
We discuss operator inequalities associated with Hölder–McCarthy and Kantorovich inequalities. We give a complementary inequality of Hölder–McCarthy one as an extension of [2] and also we give an application to the order preserving
Furuta Takayuki
doaj   +2 more sources

Kantorovich type reverse inequalities for operator norm [PDF]

open access: bronzeMathematical Inequalities & Applications, 2005
The authors extend a theorem of Bourin, contained in the electronically available monograph [\textit{J.--C. Bourin}, ``Compressions, Dilations and Matrix Inequalities'' (RGMIA Monographs, Victoria University) (2004; http://rgmia.vu.edu.au/monographs/matrix.html)]) to the framework of operators on a Hilbert space by applying the Mond--Pečarić method for
Jun Ichi Fujii   +2 more
openalex   +2 more sources

Operator versions of the Kantorovich inequality [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1996
The Operator Kantorovich Inequality \[ ( R 2 − r 2 ) u ∗ ( a ∗ a ) u ≤ R 2 ( u ∗
P. G. Spain
openalex   +2 more sources

Kantorovich type operator inequalities for Furuta inequality [PDF]

open access: bronzeOperators and Matrices, 2007
In this paper, we shall present Kantorovich type operator inequalities for Furuta inequality related to the usual order and the chaotic one in terms of a generalized Kantorovich constant, a generalized condition number and the Specht ratio, in which we use variants of the grand Furuta inequality. Mathematics subject classification (2000): 47A63.
Yuki Seo
openalex   +2 more sources

A New Kantorovich-Type Rational Operator and Inequalities for Its Approximation [PDF]

open access: goldMathematics, 2022
We introduce a new Kantorovich-type rational operator. We investigate inequalities estimating its rates of convergence in view of the modulus of continuity and the Lipschitz-type functions. Moreover, we present graphical comparisons exemplifying concretely its better approximation for a certain function. The results of the paper are crucial by means of
Esma Yıldız Özkan
openalex   +4 more sources

Generalization of the Kantorovich type operator inequalities via Grand Furuta inequality [PDF]

open access: bronzeMathematical Inequalities & Applications, 2006
In this note we show the characterization of the $\delta$-order by means of a generalized Kantorovich constant via Grand Furuta inequality, which is an extension result of that from M.Fujii, E.Kamei, Y.Seo, {; ; \it Kantorovich type operator inequalities via grand Furuta inequality}; ; , Sci.\ Math., {; ; \bf 3}; ; (2000), 263--272.
Jadranka Mić ć Hot, ‎Josip Pečarić
  +5 more sources

A glimpse at the operator Kantorovich inequality [PDF]

open access: greenLinear and Multilinear Algebra, 2018
to appear in Linear Multilinear ...
Hamid Reza Moradi   +2 more
openalex   +4 more sources

Improved Young and Heinz operator inequalities with Kantorovich constant

open access: diamondUkrainian Mathematical Journal, 2021
UDC 517.9 We present numerous refinements of the Young inequality by the Kantorovich constant. We use these improved inequalities to establish corresponding operator inequalities on a Hilbert space and some new inequalities involving the Hilbert –  Schmidt norm of matrices.  
A. Beiranvand, A. G. Ghazanfari
openalex   +2 more sources

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