On the Lawson–Lim means and Karcher mean for positive invertible operators

Abstract This note aims to generalize the reverse weighted arithmetic–geometric mean inequality of n positive invertible operators due to Lawson and Lim. In addition, we make comparisons between the weighted Karcher mean and Lawson–Lim geometric mean for higher powers.

Bibliographic Details
Main Authors: Wenshi Liao, Pujun Long, Zemin Ren, Junliang Wu
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:Journal of Inequalities and Applications
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13660-018-1817-5
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author Wenshi Liao
Pujun Long
Zemin Ren
Junliang Wu
author_facet Wenshi Liao
Pujun Long
Zemin Ren
Junliang Wu
author_sort Wenshi Liao
collection DOAJ
description Abstract This note aims to generalize the reverse weighted arithmetic–geometric mean inequality of n positive invertible operators due to Lawson and Lim. In addition, we make comparisons between the weighted Karcher mean and Lawson–Lim geometric mean for higher powers.
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spelling doaj.art-934e81f382304f84abd2d3be333951d92022-12-21T17:26:50ZengSpringerOpenJournal of Inequalities and Applications1029-242X2018-09-01201811910.1186/s13660-018-1817-5On the Lawson–Lim means and Karcher mean for positive invertible operatorsWenshi Liao0Pujun Long1Zemin Ren2Junliang Wu3College of Mathematics and Physics, Chongqing University of Science and TechnologyCollege of Mathematics and Physics, Chongqing University of Science and TechnologyCollege of Mathematics and Physics, Chongqing University of Science and TechnologyCollege of Mathematics and Statistics, Chongqing UniversityAbstract This note aims to generalize the reverse weighted arithmetic–geometric mean inequality of n positive invertible operators due to Lawson and Lim. In addition, we make comparisons between the weighted Karcher mean and Lawson–Lim geometric mean for higher powers.http://link.springer.com/article/10.1186/s13660-018-1817-5Karcher meanLawson–Lim geometric meanAndo–Li–Mathias geometric meanKantorovich constant
spellingShingle Wenshi Liao
Pujun Long
Zemin Ren
Junliang Wu
On the Lawson–Lim means and Karcher mean for positive invertible operators
Journal of Inequalities and Applications
Karcher mean
Lawson–Lim geometric mean
Ando–Li–Mathias geometric mean
Kantorovich constant
title On the Lawson–Lim means and Karcher mean for positive invertible operators
title_full On the Lawson–Lim means and Karcher mean for positive invertible operators
title_fullStr On the Lawson–Lim means and Karcher mean for positive invertible operators
title_full_unstemmed On the Lawson–Lim means and Karcher mean for positive invertible operators
title_short On the Lawson–Lim means and Karcher mean for positive invertible operators
title_sort on the lawson lim means and karcher mean for positive invertible operators
topic Karcher mean
Lawson–Lim geometric mean
Ando–Li–Mathias geometric mean
Kantorovich constant
url http://link.springer.com/article/10.1186/s13660-018-1817-5
work_keys_str_mv AT wenshiliao onthelawsonlimmeansandkarchermeanforpositiveinvertibleoperators
AT pujunlong onthelawsonlimmeansandkarchermeanforpositiveinvertibleoperators
AT zeminren onthelawsonlimmeansandkarchermeanforpositiveinvertibleoperators
AT junliangwu onthelawsonlimmeansandkarchermeanforpositiveinvertibleoperators