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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Positivity of polarizations of $n$-positive maps

Author: Piotr Kicinski
Journal: Proc. Amer. Math. Soc. 127 (1999), 783-789
MSC (1991): Primary 43A35
MathSciNet review: 1469417
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Abstract: It is shown that polarization formulas have explicit matrix representations. This enables us to prove that polarization formulas of $n$-positive maps between $C^{*}$-algebras are coordinatewise positive.

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Additional Information

Piotr Kicinski
Affiliation: Instytut Matematyki UJ, ul.Reymonta 4, PL-30059, Krakøw, Poland

PII: S 0002-9939(99)04588-8
Keywords: Completely positive map, polarization of nonlinear map, positive matrix
Received by editor(s): June 20, 1997
Communicated by: Palle E. T. Jorgensen
Article copyright: © Copyright 1999 American Mathematical Society

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