4.2 Article

Facial structures for decomposable positive linear maps in matrix algebras

Journal

POSITIVITY
Volume 9, Issue 1, Pages 63-79

Publisher

SPRINGER
DOI: 10.1007/s11117-002-2470-1

Keywords

positive linear maps; decomposable matrix algebras; faces

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We study the facial structures of the cone of all decomposable positive linear maps from the matrix algebra M-m into M-n. Especially, we completely determine the faces of the cone which arise from the dual of positive linear maps.

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