Relationships

Please place your pdfs discussing relationships here. The intention is to figure out (if that can be figured out) why certain ground state methods (e.g., hybrid functionals) yield reasonably-looking band gaps as one would expect them from GW, why some serve as good starting points for GW while others do not, etc. If you plan to use something else than pdf, please contact me beforehand. VB.

I can show a few transparencies about the comparison of BSE and TDDFT for several materials - only pptx, not pdf.