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Positive maps which map the set of rank k projections onto itself

Positive maps which map the set of rank k projections onto itself Extending Wigner’s theorem we give a characterization of positive maps of B(H) into itself which map the set of rank k projections onto itself. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Positivity Springer Journals

Positive maps which map the set of rank k projections onto itself

Positivity , Volume 21 (1) – Jun 22, 2016

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References (7)

Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer International Publishing
Subject
Mathematics; Fourier Analysis; Operator Theory; Potential Theory; Calculus of Variations and Optimal Control; Optimization; Econometrics
ISSN
1385-1292
eISSN
1572-9281
DOI
10.1007/s11117-016-0432-2
Publisher site
See Article on Publisher Site

Abstract

Extending Wigner’s theorem we give a characterization of positive maps of B(H) into itself which map the set of rank k projections onto itself.

Journal

PositivitySpringer Journals

Published: Jun 22, 2016

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