"Comparison of
operator valued completely
positive maps on
C*-algebras"
By
Aurelian
Gheondea
(Bilkent
University)
Abstract: Operator valued completely positive maps on
C*-algebra are nonncommutative generalizations of positive Borel measures on
compact spaces. There are natural partial order or preorder relations for these
maps as well as notions of absolute continuity and mutual singularity. The main
topics refer to Radon-Nikodym derivatives and Lebesgue type decompositions for
completely positive maps.
Tea and cookies will be served before the
seminar.
Date: Tuesday,
November 13, 2007
Time: 15.40
Place: Mathematics Seminar Room, SA-141