2 papers
math.OA2026
On the embeddings of selfadjoint operator spaces
Alexandros Chatzinikolaou, Evgenios T. A. Kakariadis, Se-Jin Kim +1
We investigate when a map on a selfadjoint operator space is an embedding, i.e., when its unitisation in the sense of Werner is completely isometric. Combining with results of…
math.OA2024
On the Completely Positive Approximation Property for Non-Unital Operator Systems and the Boundary Condition for the Zero Map
Se-Jin Kim
The purpose of this paper is two-fold: firstly, we give a characterization on the level of non-unital operator systems for when the zero map is a boundary representation. As a cons…