W. T. Sulaiman, "Completely contractive maps between -algebras", International Journal of Mathematics and Mathematical Sciences, vol. 32, Article ID 292758, 7 pages, 2002. https://doi.org/10.1155/S0161171202111331
Completely contractive maps between -algebras
We give a simple proof that any completely contractive map between -algebras is the top right hand corner of a two completely positive unital matrix operator. Some well-known results are deduced.
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