References
- Barker , G. P. , Hill , R. D. and Haertel , R. D. 1984 . On the completely positive and positive-semidefinite-preserving cones . Linear Algebra Appl. , 56 : 221 – 229 .
- Beasley , L. B. 1978 . Linear transformations on matrices, the invariance of . Linear and Multilinear Algebra , 6 : 179 – 183 .
- Chan , G. H. and Lim , M. H. 1982 . Linear transformations on symmetric matrices . Linear Algebra Appl. , 47 : 11 – 22 .
- Choi , M. D. , Jafarian , A. A. and Radjavi , H. 1987 . Linear maps preserving commutativity . Linear Algebra Appl. , 87 : 227 – 241 .
- Grone , R. , Johnson , C. R. , Sa , E. M. and Wolkowicz , H. 1987 . Normal matrices . Linear Algebra Appl. , 87 : 213 – 225 .
- Horn , R. A. and Johnson , C. R. Matrix Analysis
- Kunicki , C. M. and Hill , R. D. 1992 . Normal-preserving linear transformations . Linear Algebra Appl. , 170 : 107 – 115 .
- Pierce , S. and Watkins . 1978 . Invariants of linear maps on matrix algebras . Linear and Multilinear Algebra , 6 : 185 – 200 .
- Watkins , W. 1976 . Linear maps that preserve commuting pairs of matrices . Linear Algebra Appl. , 14 : 29 – 35 .