Open AccessDefinitizable extensions of positive symmetric operators in a Krein space
Author(s) -
Branko Ćurgus
Publication year - 1989
Publication title -
integral equations and operator theory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.121
H-Index - 48
eISSN - 1420-8989
pISSN - 0378-620X
DOI - 10.1007/bf01194557
Subject(s) - mathematics , extension (predicate logic) , space (punctuation) , pure mathematics , operator (biology) , mathematical analysis , philosophy , linguistics , biochemistry , chemistry , repressor , computer science , transcription factor , gene , programming language
The Friedrichs extension and the Krein extension of a positive operator in a Krein space are characterized in terms of their spectral functions in a Krein space.
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