a note on radon-nikodým derivatives and similarity for completely bounded maps
;Aurelian Gheondea;Ali Şamil Kavruk
zhonghua yi xue za zhi2009Vol. 29pp. 139-145
138
gheondea2009opusculaa
Abstract
We point out a relation between the Arveson's Radon-Nikodým derivative and known similarity results for completely bounded maps. We also consider Jordan type decompositions coming out from Wittstock's Decomposition Theorem and illustrate, by an example, the nonuniqueness of these decompositions.