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arXiv:1912.08452 [math.FA]AbstractReferencesReviewsResources

A generalization of the Aluthge transformation in the viewpoint of operator means

Takeaki Yamazaki

Published 2019-12-18Version 1

The Aluthge transformation is generalized in the viewpoint of the axiom of operator means by using double operator integrals. It includes the mean transformation which is defined by S. H. Lee, W. Y. Lee and Yoon. Next we shall give some properties of it. Especially, we shall show that the $n$-th iteration of mean transformation of an invertible matrix converges to a normal matrix. Inclusion relations among numerical ranges of generalized Aluthge transformations respect to some operator means are considered.

Comments: 21 pages
Categories: math.FA
Subjects: 47A64, 15B48, 47A12, 47A30
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