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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Linear mappings that preserve potent operators

Authors: Matjaž Omladič and Peter Šemrl
Journal: Proc. Amer. Math. Soc. 123 (1995), 1069-1074
MSC: Primary 47B49
MathSciNet review: 1254849
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Abstract: Let H and K be a complex Hilbert spaces, while $ \mathcal{B}(H)$ and $ \mathcal{B}(K)$ denote the algebras of all linear bounded operators on H and K, respectively. We characterize surjective linear mappings from $ \mathcal{B}(H)$ onto $ \mathcal{B}(K)$ that preserve potent operators in both directions.

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PII: S 0002-9939(1995)1254849-4
Article copyright: © Copyright 1995 American Mathematical Society