On further refinements for Young inequalities

In this paper sharp results on operator Young’s inequality are obtained. We first obtain sharp multiplicative refinements and reverses for the operator Young’s inequality. Secondly, we give an additive result, which improves a well-known inequality due to Tominaga. We also provide some estimates for...

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Main Authors: Furuichi Shigeru, Moradi Hamid Reza
Format: Article
Language:English
Published: De Gruyter 2018-12-01
Series:Open Mathematics
Subjects:
Online Access:https://doi.org/10.1515/math-2018-0115
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author Furuichi Shigeru
Moradi Hamid Reza
author_facet Furuichi Shigeru
Moradi Hamid Reza
author_sort Furuichi Shigeru
collection DOAJ
description In this paper sharp results on operator Young’s inequality are obtained. We first obtain sharp multiplicative refinements and reverses for the operator Young’s inequality. Secondly, we give an additive result, which improves a well-known inequality due to Tominaga. We also provide some estimates for the difference A1/2(A−1/2BA−1/2)vA1/2-{(1-v)A + vB} for v∉[ 0,1].
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spelling doaj.art-f74e6dea0c0c4eb79e9cc80b745b66422022-12-21T22:33:27ZengDe GruyterOpen Mathematics2391-54552018-12-011611478148210.1515/math-2018-0115math-2018-0115On further refinements for Young inequalitiesFuruichi Shigeru0Moradi Hamid Reza1Department of Information Science, College of Humanities and Sciences, Nihon University, 3-25-40, Sakurajyousui, Setagaya-ku, Tokyo, 156-8550, JapanYoung Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, IranIn this paper sharp results on operator Young’s inequality are obtained. We first obtain sharp multiplicative refinements and reverses for the operator Young’s inequality. Secondly, we give an additive result, which improves a well-known inequality due to Tominaga. We also provide some estimates for the difference A1/2(A−1/2BA−1/2)vA1/2-{(1-v)A + vB} for v∉[ 0,1].https://doi.org/10.1515/math-2018-0115operator inequalityyoung inequalityweighted arithmetic and geometric meanpositive operator47a6326d0747a60
spellingShingle Furuichi Shigeru
Moradi Hamid Reza
On further refinements for Young inequalities
Open Mathematics
operator inequality
young inequality
weighted arithmetic and geometric mean
positive operator
47a63
26d07
47a60
title On further refinements for Young inequalities
title_full On further refinements for Young inequalities
title_fullStr On further refinements for Young inequalities
title_full_unstemmed On further refinements for Young inequalities
title_short On further refinements for Young inequalities
title_sort on further refinements for young inequalities
topic operator inequality
young inequality
weighted arithmetic and geometric mean
positive operator
47a63
26d07
47a60
url https://doi.org/10.1515/math-2018-0115
work_keys_str_mv AT furuichishigeru onfurtherrefinementsforyounginequalities
AT moradihamidreza onfurtherrefinementsforyounginequalities