5 citations · 6 across the 2 of their papers we have counts for
2 papers
math.FA2007★ 1 cited
On the structure of positive maps between matrix algebras
Wladyslaw A. Majewski, Marcin Marciniak
A partial description of the structure of positive unital maps $ϕ: M_2(\bC) \to M_{n+1}(\bC)$ () is given.
quant-ph2004★ 5 cited
-decomposability of positive maps
Wladyslaw A. Majewski, Marcin Marciniak
The problem of classification of decomposable (in the sense of Stormer) positive maps between matrix algebras is presented. We propose the new notion of "finite" version of decompo…