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A description of Hilbert -modules in which all closed submodules are orthogonally closed
Author(s):
Jürgen
Schweizer
Journal:
Proc. Amer. Math. Soc.
127
(1999),
2123-2125.
MSC (1991):
Primary 46L05
Posted:
March 17, 1999
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Abstract:
Let , be -algebras and a full Hilbert - -bimodule such that every closed right submodule is orthogonally closed, i.e., . Then there are families of Hilbert spaces , such that and are isomorphic to -direct sums , resp. , and is isomorphic to the outer direct sum .
References:
- 1.
- L. G. Brown, Close hereditary
-subalgebras and the structure of quasi-multipliers, MSRI preprint #11211-85, 1985. - 2.
- L. G. Brown, J. A. Mingo, and N.-T. Shen, Quasi-multipliers and embeddings of Hilbert C*-bimodules, Canad. J. Math. 46 (1994), 1150-1174. MR 95k:46091
- 3.
- J. Dixmier,
-algebras, North-Holland, Amsterdam, 1981. MR 56:16388 - 4.
- E. C. Lance, Hilbert
-modules - A toolkit for operator algebraists, London Math. Soc. Lecture Notes no. 210, Cambridge University Press, Cambridge, 1995. MR 96k:46100 - 5.
- B. Magajna, Hilbert
-modules in which all closed submodules are complemented, Proc. Amer. Math. Soc. 125 (1997), 849-852. MR 97e:46079 - 6.
- N. E. Wegge-Olsen, K-theory and
-algebras - a friendly approach, Oxford University Press, Oxford, 1993. MR 95c:46116
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Additional Information:
Jürgen
Schweizer
Affiliation:
Mathematisches Institut, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
Email:
juergen.schweizer@uni-tuebingen.de
DOI:
10.1090/S0002-9939-99-05219-3
PII:
S 0002-9939(99)05219-3
Keywords:
Hilbert $C^*$-modules,
complemented submodules
Received by editor(s):
October 23, 1997
Posted:
March 17, 1999
Additional Notes:
The results of this paper are part of the author's doctoral dissertation at the University of Tübingen, which was completed before we received the preprint \cite{5} by Magajna.
Communicated by:
David R. Larson
Copyright of article:
Copyright
1999,
American Mathematical Society
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