nth-Aluthge transform of w-Hyponormal Operators
Pokhariyal, G. P.
Khalagai, J. M.
Imagiri, S. K.
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In this paper, it is shown the exact location of w-hyponormal operators in a series of operator classes and that; the spectrum of the nth-Aluthge transform of any operator equals that of the operator and for w-hyponormal operators- the nth-Aluthge transform is spectraloid.