Published July 1992
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A remark on the unitary part of contractions
Description
Considering operators on a complex infinite dimensional Hilbert space H and denoting by T* a construction with C.O completely non-unitary part, it is proved that AT is projection which commutes with T and H(u)T = ATH. 3 refs
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Additional details
Publishing Information
- Imprint Pagination
- 3 p.
- Report number
- IC--92/105
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 23072617
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- HILBERT SPACE; MATHEMATICAL OPERATORS; NONUNITARY REPRESENTATIONS; UNITARITY
- Descriptors DEC
- BANACH SPACE; MATHEMATICAL SPACE; SPACE