A class of operators with normal Aluthge transformation

preprint2013arXivOpen access

Abstract

In this paper, we show that the generalized Aluthge transforma- tions of a large class of operators (weighted conditional type operators) are normal. As a consequence, the operator MwEMu is p-hyponormal if and only if it is normal, and under a weak condition, if MwEMu is normal, then the Holder inequality turn into equality for w, u. Also, we conclude that, invertible weighted conditional type operators are normal. In the end we give some appli- cations of p-hyponormal weighted conditional type operators. In the end, some examples are provided to illustrate concrete application of the main results of the paper.

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