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


Normal derivations in norm ideals

Author: Fuad Kittaneh
Journal: Proc. Amer. Math. Soc. 123 (1995), 1779-1785
MSC: Primary 47B47; Secondary 47B10
MathSciNet review: 1242091
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Abstract: We establish the orthogonality of the range and the kernel of a normal derivation with respect to the unitarily invariant norms associated with norm ideals of operators. Related orthogonality results for certain nonnormal derivations are also given.

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PII: S 0002-9939(1995)1242091-2
Keywords: Normal derivation, nonnormal derivation, norm ideal, unitarily invariant norm, orthogonality results for derivations
Article copyright: © Copyright 1995 American Mathematical Society