Jin Zhang wrote:
> 2. dyn(iat, jat): The dynamical matrix which obeys -- dyn^{\diag} *
> amass * dyn = 1I don't think dymanical matric should obey this relation... EIGENVECTORS, U, of the generalized problem Dyn U = M U omega^2 will obey U^\dagger M U = 1 or something like that... while EIGENVECTORS, V=\sqrtM U of problem 1/sqrtM Dyn 1/sqrtM V = omega^2 V will obey V^\dagger V = 1 stefano
