TY  - JOUR
ID  - Otieno2007
LB  - Otieno2007
AU  - Otieno, Mourice Ouma
TI  - On quasi-similarity and ω-hyponormal operators
ST  - On quasi-similarity and ω-hyponormal operators
JO  - Opuscula Math.
JA  - Opuscula Math.
JF  - Opuscula Mathematica
PY  - 2007
VL  - 27
IS  - 1
SP  - 73
EP  - 81
DO  - http://dx.doi.org/10.7494/OpMath.2007.27.1.73
UR  - http://dx.doi.org/10.7494/OpMath.2007.27.1.73
AB  - In this paper, it is shown that a Putnam-Fuglede type commutativity theorem holds for \(\omega\)-hyponormal operators, the normal parts of quasi-similar \(\omega\)-hyponormal operators are unitarily equivalent and a \(\omega\)-hyponormal spectral operator is normal.
KW  - \(\omega\)-hyponormal operators
KW  - quasi-similarity
SN  - 1232-9274
ER  -