Normal derivations in norm ideals

Kittaneh, Fuad

doi:10.1090/S0002-9939-1995-1242091-2

Normal derivations in norm ideals

Author: Fuad Kittaneh
Journal: Proc. Amer. Math. Soc. 123 (1995), 1779-1785
MSC: Primary 47B47; Secondary 47B10
DOI: https://doi.org/10.1090/S0002-9939-1995-1242091-2
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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