Range of a contractive strongly positive projection in a C*-algebra

• Autorzy: Andrzej Łuczak
• Języki publikacji: EN

Abstrakty

EN

We generalize a result of Choi and Effros on the range of a contractive completely positive projection in a C*-algebra to the case when this projection is only strongly positive using, moreover, an elementary argument instead of a 2×2-matrix technique.

Kategorie tematyczne

• 46L05: General theory of C * -algebras
• 46L55: Noncommutative dynamical systems

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Colloquium Mathematicum
• Rocznik: 2015
• Tom: 140
• Numer: 1
• Strony: 87-89

Daty

wydano

2015

Twórcy

autor

Andrzej Łuczak

• Faculty of Mathematics and Computer Science, Łódź University, S. Banacha 22, 90-238 Łódź, Poland

Identyfikatory

DOI

10.4064/cm140-1-7