Linear maps preserving numerical radius of tensor product of matrices

Abstract

We determine the structure of linear maps on the tensor product of matrices which preserve the numerical range or numerical radius.

10 pages

References in corpus (2)

• The automorphism group of separable states in quantum information theory
• Linear preservers and quantum information science

Cited by in corpus (2)

• Linear rank preservers of tensor products of rank one matrices
• Linear maps preserving the higher numerical ranges of tensor product of matrices