Positive linear maps of matrix algebras
W. A. Majewski
Banach Center Publications, Tome 97 (2012), p. 293-302 / Harvested from The Polish Digital Mathematics Library
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A characterization of the structure of positive maps is presented. This sheds some more light on the old open problem studied both in Quantum Information and Operator Algebras. Our arguments are based on the concept of exposed points, links between tensor products and mapping spaces and convex analysis.

Publié le : 2012-01-01
EUDML-ID : urn:eudml:doc:281995 
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     title = {Positive linear maps of matrix algebras},
     journal = {Banach Center Publications},
     volume = {97},
     year = {2012},
     pages = {293-302},
     zbl = {1283.47045},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc98-0-12}
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W. A. Majewski. Positive linear maps of matrix algebras. Banach Center Publications, Tome 97 (2012) pp. 293-302. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc98-0-12/