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math.OA2026
On a generalization of decomposable maps on C*-algebras
Krzysztof Szczygielski
We propose the notion of countable decomposability of maps on C*-algebras: a bounded linear map , where is a C*-algebra and $\mathca…
math.OA2025
Decomposable semigroups on C*-algebras and D-divisible dynamical maps
Krzysztof Szczygielski
We analyze semigroups of decomposable maps on C*-algebras in context of the algebraic structure of associated infinitesimal generators. Case of von Neumann algebras, including $B(\…
math.OA2025
Covariant decomposable maps on C*-algebras and quantum dynamics
Krzysztof Szczygielski
We characterize covariant positive decomposable maps between unital C*-algebras in terms of a dilation theorem, which generalizes a seminal result by H. Scutaru from Rep. Math. Phy…