Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3

For positive operators A and B with A invertible it is shown that (AB2A)½≤A2 implies (AB2A)¾≤ABA. The inequalities in the title for 0≤B≤A are then derived as a conquence.

Bibliographic Details
Main Author: Derming Wang
Format: Article
Language:English
Published: Hindawi Limited 1995-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171295000263
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spelling doaj-53c613b7ed5f4c34a98c1079daf1c53c2020-11-25T00:37:18ZengHindawi LimitedInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251995-01-0118120520710.1155/S0161171295000263Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3Derming Wang0Department of Mathematics, California State University, Long Beach 90840, California, USAFor positive operators A and B with A invertible it is shown that (AB2A)½≤A2 implies (AB2A)¾≤ABA. The inequalities in the title for 0≤B≤A are then derived as a conquence.http://dx.doi.org/10.1155/S0161171295000263positive operatoroperator inequalitythe Furuta inequality.
collection DOAJ
language English
format Article
sources DOAJ
author Derming Wang
spellingShingle Derming Wang
Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
International Journal of Mathematics and Mathematical Sciences
positive operator
operator inequality
the Furuta inequality.
author_facet Derming Wang
author_sort Derming Wang
title Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
title_short Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
title_full Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
title_fullStr Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
title_full_unstemmed Around the Furuta inequalitythe operator inequalities (AB2A)¾≤ABA≤A3
title_sort around the furuta inequalitythe operator inequalities (ab2a)¾≤aba≤a3
publisher Hindawi Limited
series International Journal of Mathematics and Mathematical Sciences
issn 0161-1712
1687-0425
publishDate 1995-01-01
description For positive operators A and B with A invertible it is shown that (AB2A)½≤A2 implies (AB2A)¾≤ABA. The inequalities in the title for 0≤B≤A are then derived as a conquence.
topic positive operator
operator inequality
the Furuta inequality.
url http://dx.doi.org/10.1155/S0161171295000263
work_keys_str_mv AT dermingwang aroundthefurutainequalitytheoperatorinequalitiesab2a3⁄4abaa3
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