Completion and extension of operators in Krein spaces
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Completion and extension of operators in Krein spaces
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| Creator |
Baidiuk, D.
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| Description |
A generalization of the well-known results of M.G. Kreiın on the description of the self-adjoint contractive extension of a Hermitian contraction is obtained. This generalization concerns the situation where the self-adjoint operator A and extensions A belong to a Kreiın space or a Pontryagin space, and their defect operators are allowed to have a fixed number of negative eigenvalues. A result of Yu. L. Shmul’yan on completions of nonnegative block operators is generalized for block operators with a fixed number of negative eigenvalues in a Kreiın space.
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| Date |
2019-01-14T20:28:45Z
2019-01-14T20:28:45Z 2016 |
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| Type |
Article
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| Identifier |
Completion and extension of operators in Krein spaces / D. Baidiuk // Український математичний вісник. — 2016. — Т. 13, № 4. — С. 452-472. — Бібліогр.: 27 назв. — англ.
1810-3200 http://dspace.nbuv.gov.ua/handle/123456789/145084 2010 MSC. 46C20, 47A20, 47A63 |
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| Language |
en
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| Relation |
Український математичний вісник
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| Publisher |
Інститут прикладної математики і механіки НАН України
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