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Angles, triangle inequalities, correlation matrices and metric-preserving and subadditive functions.

Authors :
Castano, Diego
Paksoy, Vehbi E.
Zhang, Fuzhen
Source :
Linear Algebra & its Applications. Feb2016, Vol. 491, p15-29. 15p.
Publication Year :
2016

Abstract

We present inequalities concerning the entries of correlation matrices, density matrices, and partial isometries through the positivity of 3 × 3 matrices. We extend our discussions to the inequalities concerning the triangle triplets with metric-preserving and subadditive functions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00243795
Volume :
491
Database :
Academic Search Index
Journal :
Linear Algebra & its Applications
Publication Type :
Academic Journal
Accession number :
112177529
Full Text :
https://doi.org/10.1016/j.laa.2014.10.011