Department of Mathematics, Gdansk University of Technology, ul. Narutowicza 11/12, 80 952 Gdansk, Poland
Beata Kuna ; Department of Mathematics, Gdansk University of Technology, ul. Narutowicza 11/12, 80 952 Gdansk, Poland
Abstract:
We show that the set of those Markov operators on the Schatten class such that , where is one-dimensional projection, is norm open and dense. If we require that the limit projections must be on strictly positive states, then such operators form a norm dense . Surprisingly, for the strong operator topology operators the situation is quite the opposite.