Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 고응일 | * |
dc.date.accessioned | 2016-08-28T10:08:13Z | - |
dc.date.available | 2016-08-28T10:08:13Z | - |
dc.date.issued | 2013 | * |
dc.identifier.issn | 0024-3795 | * |
dc.identifier.other | OAK-9576 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/223284 | - |
dc.description.abstract | In this paper we provide some conditions for 2×2 operator matrices whose diagonal entries are class A operators to be subscalar. As a corollary, we get that such operators with rich spectra have nontrivial invariant subspaces. In addition, we show that the tensor product of a 2×2 upper triangular class A operator matrix and a class A operator has a scalar extension. Finally, we find some subscalar 2×2 operator matrices satisfying the operator equations ABA=A2 and BAB=B2. © 2012 Elsevier Inc. All rights reserved. | * |
dc.language | English | * |
dc.title | On subscalarity of some 2 × 2 class A operator matrices | * |
dc.type | Article | * |
dc.relation.issue | 3 | * |
dc.relation.volume | 438 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 1322 | * |
dc.relation.lastpage | 1338 | * |
dc.relation.journaltitle | Linear Algebra and Its Applications | * |
dc.identifier.doi | 10.1016/j.laa.2012.08.037 | * |
dc.identifier.wosid | WOS:000312610800025 | * |
dc.identifier.scopusid | 2-s2.0-84870369446 | * |
dc.author.google | Ko E. | * |
dc.author.google | Jung S. | * |
dc.author.google | Kim Y. | * |
dc.contributor.scopusid | 고응일(57217846069) | * |
dc.date.modifydate | 20240116125046 | * |