Nung-Sing Sze

most citedCriteria and new classes of k-positive maps

6 citations · 7 across the 3 of their papers we have counts for

collaborators

3 papers

math.FA2012

Linear maps preserving Ky Fan norms and Schatten norms of tensor products of matrices

Ajda Fosner, Zejun Huang, Chi-Kwong Li +1

For a positive integer $n$ , let $M_{n}$ be the set of $n \times n$ complex matrices. Suppose $∥ \cdot ∥$ is the Ky Fan $k$ -norm with $1 \leq k \leq mn$ or the Schatten $p$ -norm with $1…

quant-ph2012★ 6 cited

Criteria and new classes of k-positive maps

Jinchuan Hou, Chi-Kwong Li, Yiu-Tung Poon +2

We study k-positive maps on operators. Proofs are given to different positivity criteria. Special attention is on positive maps arising in the study of quantum information science.…

quant-ph2012★ 1 cited

Linear preservers and quantum information science

Ajda Fosner, Zejun Huang, Chi-Kwong Li +1

Let $m, n \geq 2$ be positive integers, $M_{m}$ the set of $m \times m$ complex matrices and $M_{n}$ the set of $n \times n$ complex matrices. Regard $M_{mn}$ as the tensor space $M_m\otime…