Linear rank preservers of tensor products of rank one matrices
Zejun HuangShiyu ShiNung-Sing Sze
所有作者
Zejun HuangShiyu ShiNung-Sing Sze
文献摘要
Let n1,…,nk be integers larger than or equal to 2. We characterize
linear maps ϕ:Mn1⋯nk→Mn1⋯nk such that
rank(ϕ(A1⊗⋯⊗Ak))=1wheneverrank(A1⊗⋯⊗Ak)=1for allAi∈Mni,i=1,…,k. Applying
this result, we extend two recent results on linear maps that preserving the
rank of special classes of matrices.