A note on Radon-Nikodým derivatives and similarity for completely bounded maps

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.

Detalhes bibliográficos

Principais autores:	Aurelian Gheondea, Ali Şamil Kavruk
Formato:	Artigo
Idioma:	Inglês
Publicado em:	AGH Univeristy of Science and Technology Press 2009-01-01
coleção:	Opuscula Mathematica
Assuntos:	Radon-Nikodým derivative \(C^*\)-algebra completely positive map similarity
Acesso em linha:	http://www.opuscula.agh.edu.pl/vol29/2/art/opuscula_math_2912.pdf
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