On majorization and normality of operators
Author:
Mehdi Radjabalipour
Journal:
Proc. Amer. Math. Soc. 62 (1977), 105-110
MSC:
Primary 47B20
DOI:
https://doi.org/10.1090/S0002-9939-1977-0430851-6
MathSciNet review:
0430851
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Abstract | References | Similar Articles | Additional Information
Abstract: Recent results of C. R. Putnam are used to find some conditions for normality of operators. The emphasis is on the classes of spectral operators (defined by N. Dunford) and M-hyponormal operators (defined by J. G. Stampfli).
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Additional Information
Keywords:
Normal operator,
spectral operator,
<I>M</I>-hyponormal operator,
quasi-similarity
Article copyright:
© Copyright 1977
American Mathematical Society