pith. sign in

arxiv: 1509.00541 · v2 · pith:YRLOUY3Pnew · submitted 2015-09-02 · 🧮 math.FA · quant-ph

Linear rank preservers of tensor products of rank one matrices

classification 🧮 math.FA quant-ph
keywords rankcdotsotimesquadlinearhboxmapsmathrm
0
0 comments X
read the original abstract

Let $n_1,\ldots,n_k $ be integers larger than or equal to 2. We characterize linear maps $\phi: M_{n_1\cdots n_k}\rightarrow M_{n_1\cdots n_k}$ such that $${\mathrm rank}\,(\phi(A_1\otimes \cdots \otimes A_k))=1\quad\hbox{whenever}\quad{\mathrm rank}\, (A_1\otimes \cdots \otimes A_k)=1 \quad \hbox{for all}\quad A_i \in M_{n_i},\, i = 1,\dots,k.$$ Applying this result, we extend two recent results on linear maps that preserving the rank of special classes of matrices.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.