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On the Complex Symmetric and Skew-Symmetric Operators with a Simple Spectrum

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dc.contributor.author Zagorodnyuk, S.M.
dc.date.accessioned 2019-02-11T14:57:30Z
dc.date.available 2019-02-11T14:57:30Z
dc.date.issued 2011
dc.identifier.citation On the Complex Symmetric and Skew-Symmetric Operators with a Simple Spectrum / S.M. Zagorodnyuk // Symmetry, Integrability and Geometry: Methods and Applications. — 2011. — Т. 7. — Бібліогр.: 10 назв. — англ. uk_UA
dc.identifier.issn 1815-0659
dc.identifier.other 2010 Mathematics Subject Classification: 44A60
dc.identifier.other DOI:10.3842/SIGMA.2011.016
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/146779
dc.description.abstract In this paper we obtain necessary and sufficient conditions for a linear bounded operator in a Hilbert space H to have a three-diagonal complex symmetric matrix with non-zero elements on the first sub-diagonal in an orthonormal basis in H. It is shown that a set of all such operators is a proper subset of a set of all complex symmetric operators with a simple spectrum. Similar necessary and sufficient conditions are obtained for a linear bounded operator in H to have a three-diagonal complex skew-symmetric matrix with non-zero elements on the first sub-diagonal in an orthonormal basis in H. uk_UA
dc.description.sponsorship The author is grateful to referees for their comments and suggestions. uk_UA
dc.language.iso en uk_UA
dc.publisher Інститут математики НАН України uk_UA
dc.relation.ispartof Symmetry, Integrability and Geometry: Methods and Applications
dc.title On the Complex Symmetric and Skew-Symmetric Operators with a Simple Spectrum uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA


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