On the structure of positive maps between matrix algebras

2007/05/06 by Majewski, Wladyslaw A., Marciniak, Marcin
#47B65 #47L07 #FOS: Mathematics #Functional Analysis (math.FA) #Operator Algebras (math.OA)

paper · doi:10.48550/arxiv.0705.0798

Abstract

A partial description of the structure of positive unital maps ϕ: M₂(\bC) → M_n+1(\bC) (n≥ 2) is given.

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