SABER UCV >
1) Investigación >
Artículos Publicados >
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10872/5227
|
| Título : | UNITARY EXTENSIONS OF TWO-PARAMETER LOCAL SEMIGROUPS OF ISOMETRIC OPERATORS AND THE KREIN EXTENSION THEOREM |
| Autor : | Bruzual, Ramón |
| Palabras clave : | extension
unitary group |
| Fecha de publicación : | 1993 |
| Editorial : | Integral equations and operator theory. |
| Citación : | ;10 |
| Resumen : | A notion of two-parameter local semigroups of isometric operators in Hilbert space is discussed. It is shown that under certain conditions such a semigroup can be extended to a strongly continuous two-parameter group of unitary operators in a larger Hilbert space. As an application a simple proof of the Eskin bidimensional version of the Krein extension theorem is given. |
| URI : | http://hdl.handle.net/10872/5227 |
| ISSN : | 0378-620X |
| Aparece en las colecciones: | Artículos Publicados
|
Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.
|
