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math.OA2003
A note on fixed points of completely positive maps
Gert K. Pedersen
It is shown that a fixed point of a completely positive map on a semi-finite von Neumann algebra must commute with the operators determining the map (the Lueders phenomenon) if the…
math.RA2003
Inverse limits of rings and Multiplier rings
Gert K. Pedersen, Francesc Perera
It is proved that the exchange property, the Bass stable rank and the quasi-Bass property are all preserved under surjective inverse limits. This is then applied to multiplier ring…