  We propose a computational scheme for the ab initio calculation of Wannier
functions (WFs) for correlated electronic materials. The full-orbital
Hamiltonian H is projected into the WF subspace defined by the physically most
relevant partially filled bands. The Hamiltonian H^{WF} obtained in this way,
with interaction parameters calculated by constrained LDA for the Wannier
orbitals, is used as an ab initio setup of the correlation problem, which can
then be solved by many-body techniques, e.g., dynamical mean-field theory
(DMFT). In such calculations the self-energy operator \Sigma(e) is defined in
WF basis which then can be converted back into the full-orbital Hilbert space
to compute the full-orbital interacting Green function G(r,r',e). Using
G(r,r',e) one can evaluate the charge density, modified by correlations,
together with a new set of WFs, thus defining a fully self-consistent scheme.
The Green function can also be used for the calculation of spectral, magnetic
and electronic properties of the system. Here we report the results obtained
with this method for SrVO3 and V2O3. Comparisons are made with previous results
obtained by the LDA+DMFT approach where the LDA DOS was used as input, and with
new bulk-sensitive experimental spectra.
