On frames for Krein spaces

A definition of frames for Krein spaces is proposed, which extends the notion of ℐ-orthonormal bases of Krein spaces. A ℐ-frame for a Krein space (ℋ,[,]) is in particular a frame for ℋ in the Hilbert space sense. But it is also compatible with the indefinite inner product [ , ], meaning that it dete...

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Autores principales: Giribet, J. I., Maestripieri, Alejandra Laura, Martínez Pería, Francisco Dardo, Massey, Pedro Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83926
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id I19-R120-10915-83926
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Matemática
Frames
Krein spaces
Uniformly J-definite subspaces
spellingShingle Matemática
Frames
Krein spaces
Uniformly J-definite subspaces
Giribet, J. I.
Maestripieri, Alejandra Laura
Martínez Pería, Francisco Dardo
Massey, Pedro Gustavo
On frames for Krein spaces
topic_facet Matemática
Frames
Krein spaces
Uniformly J-definite subspaces
description A definition of frames for Krein spaces is proposed, which extends the notion of ℐ-orthonormal bases of Krein spaces. A ℐ-frame for a Krein space (ℋ,[,]) is in particular a frame for ℋ in the Hilbert space sense. But it is also compatible with the indefinite inner product [ , ], meaning that it determines a pair of maximal uniformly ℐ-definite subspaces, an analogue to the maximal dual pair associated to a ℐ-orthonormal basis. Also, each ℐ-frame induces an indefinite reconstruction formula for the vectors in ℋ, which resembles the one given by a ℐ-orthonormal basis.
format Articulo
Articulo
author Giribet, J. I.
Maestripieri, Alejandra Laura
Martínez Pería, Francisco Dardo
Massey, Pedro Gustavo
author_facet Giribet, J. I.
Maestripieri, Alejandra Laura
Martínez Pería, Francisco Dardo
Massey, Pedro Gustavo
author_sort Giribet, J. I.
title On frames for Krein spaces
title_short On frames for Krein spaces
title_full On frames for Krein spaces
title_fullStr On frames for Krein spaces
title_full_unstemmed On frames for Krein spaces
title_sort on frames for krein spaces
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/83926
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