Characterizations are given for the positive and completely positive maps on n x 1~ complex matrices that leave invariant the diagonal entries or the kth elementary symmetric function of the diagonal entries, 1 < k < n. In addition, it is shown that such a positive map is always decomposable if n <
โฆ LIBER โฆ
A new criterion and a special class of k-positive maps
โ Scribed by Hou, Jinchuan; Li, Chi-Kwong; Poon, Yiu-Tung; Qi, Xiaofei; Sze, Nung-Sing
- Book ID
- 122235753
- Publisher
- Elsevier Science
- Year
- 2015
- Tongue
- English
- Weight
- 815 KB
- Volume
- 470
- Category
- Article
- ISSN
- 0024-3795
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