dc.creator | Andruchow, Esteban | |
dc.date.accessioned | 2017-06-26T21:03:23Z | |
dc.date.accessioned | 2018-11-06T14:47:52Z | |
dc.date.available | 2017-06-26T21:03:23Z | |
dc.date.available | 2018-11-06T14:47:52Z | |
dc.date.created | 2017-06-26T21:03:23Z | |
dc.date.issued | 2014-11 | |
dc.identifier | Andruchow, Esteban; A note on a question by T. Ando; University of Szeged. Bolyai Institute; Acta Scientiarum Mathematicarum (szeged); 80; 3-4; 11-2014; 651-658 | |
dc.identifier | 0001-6969 | |
dc.identifier | http://hdl.handle.net/11336/18941 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1890441 | |
dc.description.abstract | In 1979 T. Ando posed the following question: suppose E and F are two projectionvalued measures defined on an algebra Σ of subsets of Ω, which verifykE(∆) − F(∆)k ≤ 1 − δ, ∆ ∈ Σ,for some δ > 0. Does there exist a unitary operator u such that u∗E(∆)u = F(∆) for all∆ ∈ Σ? He knew that the answer was affirmative if both measures were strongly σ-additiveand maximal (i.e. E and F have ciclic vectors). In this note, we show that the answer isalso affirmative if both measures take values in a common finite von Neumann algebra. | |
dc.language | eng | |
dc.publisher | University of Szeged. Bolyai Institute | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://pub.acta.hu/acta/showCustomerArticle.action?id=38878&dataObjectType=article&returnAction=showCustomerVolume&sessionDataSetId=400e733b855873aa&style= | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | Spectral measure | |
dc.subject | Unitary equivalence | |
dc.subject | Finite algebra | |
dc.title | A note on a question by T. Ando | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |