Right and Left Weyl Operator Matrices in a Banach Space Setting
Let Xi,Yii=1,2 be Banach spaces. The operator matrix of the form MC=AC0B acting between X1⊕X2 and Y1⊕Y2 is investigated. By using row and column operators, equivalent conditions are obtained for MC to be left Weyl, right Weyl, and Weyl for some C∈ℬX2,Y1, respectively. Based on these results, some su...
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doaj-cfb7c2836b904dc8865861f76e6ab97f2021-06-14T00:17:56ZengHindawi LimitedJournal of Mathematics2314-47852021-01-01202110.1155/2021/9959364Right and Left Weyl Operator Matrices in a Banach Space SettingAichun Liu0Junjie Huang1Alatancang Chen2School of Mathematical SciencesSchool of Mathematical SciencesSchool of Mathematical SciencesLet Xi,Yii=1,2 be Banach spaces. The operator matrix of the form MC=AC0B acting between X1⊕X2 and Y1⊕Y2 is investigated. By using row and column operators, equivalent conditions are obtained for MC to be left Weyl, right Weyl, and Weyl for some C∈ℬX2,Y1, respectively. Based on these results, some sufficient conditions are also presented. As applications, some discussions on Hamiltonian operators are given in the context of Hilbert spaces.http://dx.doi.org/10.1155/2021/9959364 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aichun Liu Junjie Huang Alatancang Chen |
spellingShingle |
Aichun Liu Junjie Huang Alatancang Chen Right and Left Weyl Operator Matrices in a Banach Space Setting Journal of Mathematics |
author_facet |
Aichun Liu Junjie Huang Alatancang Chen |
author_sort |
Aichun Liu |
title |
Right and Left Weyl Operator Matrices in a Banach Space Setting |
title_short |
Right and Left Weyl Operator Matrices in a Banach Space Setting |
title_full |
Right and Left Weyl Operator Matrices in a Banach Space Setting |
title_fullStr |
Right and Left Weyl Operator Matrices in a Banach Space Setting |
title_full_unstemmed |
Right and Left Weyl Operator Matrices in a Banach Space Setting |
title_sort |
right and left weyl operator matrices in a banach space setting |
publisher |
Hindawi Limited |
series |
Journal of Mathematics |
issn |
2314-4785 |
publishDate |
2021-01-01 |
description |
Let Xi,Yii=1,2 be Banach spaces. The operator matrix of the form MC=AC0B acting between X1⊕X2 and Y1⊕Y2 is investigated. By using row and column operators, equivalent conditions are obtained for MC to be left Weyl, right Weyl, and Weyl for some C∈ℬX2,Y1, respectively. Based on these results, some sufficient conditions are also presented. As applications, some discussions on Hamiltonian operators are given in the context of Hilbert spaces. |
url |
http://dx.doi.org/10.1155/2021/9959364 |
work_keys_str_mv |
AT aichunliu rightandleftweyloperatormatricesinabanachspacesetting AT junjiehuang rightandleftweyloperatormatricesinabanachspacesetting AT alatancangchen rightandleftweyloperatormatricesinabanachspacesetting |
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1721378856200306688 |