Some matrix inequalities related to norm and singular values

In this short note, we presented a new proof of a weak log-majorization inequality for normal matrices and obtained a singular value inequality related to positive semi-definite matrices. What's more, we also gave an example to show that some conditions in an existing norm inequality are necess...

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Main Authors: Xiaoyan Xiao, Feng Zhang, Yuxin Cao, Chunwen Zhang
Format: Article
Language:English
Published: AIMS Press 2024-01-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2024207?viewType=HTML
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author Xiaoyan Xiao
Feng Zhang
Yuxin Cao
Chunwen Zhang
author_facet Xiaoyan Xiao
Feng Zhang
Yuxin Cao
Chunwen Zhang
author_sort Xiaoyan Xiao
collection DOAJ
description In this short note, we presented a new proof of a weak log-majorization inequality for normal matrices and obtained a singular value inequality related to positive semi-definite matrices. What's more, we also gave an example to show that some conditions in an existing norm inequality are necessary.
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spelling doaj.art-b06517e4ce6b4666be48965aeffac1572024-02-05T01:32:58ZengAIMS PressAIMS Mathematics2473-69882024-01-01924205421010.3934/math.2024207Some matrix inequalities related to norm and singular valuesXiaoyan Xiao0Feng Zhang1 Yuxin Cao2Chunwen Zhang 31. Department of Mathematics, Southeast University Chengxian College, Nanjing 210000, China1. Department of Mathematics, Southeast University Chengxian College, Nanjing 210000, China2. Department of Electrical and Computer Engineering, Southeast University Chengxian College, Nanjing 210000, China2. Department of Electrical and Computer Engineering, Southeast University Chengxian College, Nanjing 210000, ChinaIn this short note, we presented a new proof of a weak log-majorization inequality for normal matrices and obtained a singular value inequality related to positive semi-definite matrices. What's more, we also gave an example to show that some conditions in an existing norm inequality are necessary.https://www.aimspress.com/article/doi/10.3934/math.2024207?viewType=HTMLsingular valuesweak log-majorizationnormal matrices
spellingShingle Xiaoyan Xiao
Feng Zhang
Yuxin Cao
Chunwen Zhang
Some matrix inequalities related to norm and singular values
AIMS Mathematics
singular values
weak log-majorization
normal matrices
title Some matrix inequalities related to norm and singular values
title_full Some matrix inequalities related to norm and singular values
title_fullStr Some matrix inequalities related to norm and singular values
title_full_unstemmed Some matrix inequalities related to norm and singular values
title_short Some matrix inequalities related to norm and singular values
title_sort some matrix inequalities related to norm and singular values
topic singular values
weak log-majorization
normal matrices
url https://www.aimspress.com/article/doi/10.3934/math.2024207?viewType=HTML
work_keys_str_mv AT xiaoyanxiao somematrixinequalitiesrelatedtonormandsingularvalues
AT fengzhang somematrixinequalitiesrelatedtonormandsingularvalues
AT yuxincao somematrixinequalitiesrelatedtonormandsingularvalues
AT chunwenzhang somematrixinequalitiesrelatedtonormandsingularvalues