On the Characteristic Operators and Projections and on the Solutions of Weyl Type of Dissipative and Accumulative Operator Systems. II. Abstract Theory
Vernadsky National Library of Ukraine
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Title |
On the Characteristic Operators and Projections and on the Solutions of Weyl Type of Dissipative and Accumulative Operator Systems. II. Abstract Theory
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Creator |
Khrabustovsky, V.I.
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Description |
Special maximal semi-definite subspaces (maximal dissipative and accumulative relations) are considered. Particular cases of those arise in studying boundary problems for systems mentioned in the title. We provide a description of such subspaces and list their properties. A criterion is found that condition of semi-definiteness of sum of indefinite quadratic forms reduces to semi-definiteness of each of the summand forms, i.e it is separated. In the case when the forms depend on a parameter λ (e.g., a spectral parameter) within a domain Λ is in C, a condition is found under which separation of the semi-definiteness property at a single λ implies its separation for all λ.
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Date |
2016-10-01T13:32:17Z
2016-10-01T13:32:17Z 2006 |
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Type |
Article
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Identifier |
On the Characteristic Operators and Projections and on the Solutions of Weyl Type of Dissipative and Accumulative Operator Systems. II. Abstract Theory / V.I. Khrabustovsky // Журнал математической физики, анализа, геометрии. — 2006. — Т. 2, № 3. — С. 299-317. — Бібліогр.: 35 назв. — англ.
1812-9471 http://dspace.nbuv.gov.ua/handle/123456789/106621 |
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Language |
en
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Relation |
Журнал математической физики, анализа, геометрии
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Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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