On Oct 3, 2012, at 13:00 , Padmaja Patnaik wrote: > If you use the plane wave basis, will you have generalized > eigenvalue problem?
only if you use ultrasoft pseudopotentials or PAW P. --- Paolo Giannozzi, Dept of Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
