01/19/2008, 06:30 AM
Gottfried Wrote:Quote:"(...) Bell matrices are not normal, that is, they do not commute with their transposes. Normality is the condition for diagonalizability. This means that Bell matrices cannot be put into diagonal form by a similarity transformation. (...)"In my understanding this remark is a bit misleading; the normality-criterion applies only, if an orthonormal similarity transform is requested, which is usually also called a rotation. But here we are able to do a similarity transform using triangular matrices, which even allows exact powerseries-terms for arbitrary size of matrices.
Dont understand this either. I think they are wrong.