Léka, Zoltán (2016) A note on extremal decompositions of covariances. ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 46 (2). pp. 571-580. ISSN 0035-7596
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Official URL: http://projecteuclid.org/euclid.rmjm/1403276854
Abstract
We shall present an elementary approach to extremal decompositions of (quantum) covariance matrices determined by densities. We give a new proof on former results and provide a sharp estimate of the ranks of the densities that appear in the decomposition theorem. Copyright © 2016 Rocky Mountain Mathematics Consortium.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Extreme points; DENSITY; DECOMPOSITION; covariance; Correlation |
| Subjects: | Q Science / természettudomány > QA Mathematics / matematika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 03 Jan 2017 18:01 |
| Last Modified: | 03 Jan 2017 18:01 |
| URI: | http://real.mtak.hu/id/eprint/44234 |
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