Backward Aluthge iterates of a hyponormal operator and scalar extensions
C. Benhida ; E. H. Zerouali
Studia Mathematica, Tome 192 (2009), p. 1-10 / Harvested from The Polish Digital Mathematics Library
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Let R and S be two operators on a Hilbert space. We discuss the link between the subscalarity of RS and SR. As an application, we show that backward Aluthge iterates of hyponormal operators and p-quasihyponormal operators are subscalar.

Publié le : 2009-01-01
EUDML-ID : urn:eudml:doc:284654 
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C. Benhida; E. H. Zerouali. Backward Aluthge iterates of a hyponormal operator and scalar extensions. Studia Mathematica, Tome 192 (2009) pp. 1-10. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm195-1-1/