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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Main Authors: Aichun Liu, Junjie Huang, Alatancang Chen
Format: Article
Language:English
Published: Hindawi Limited 2021-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2021/9959364
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spelling 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
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