%0 Journal Article %A Müller, David %T Minimax principles, Hardy-Dirac inequalities, and operator cores for two and three dimensional Coulomb-Dirac operators %J Documenta mathematica %D 2016 %P 1151-1169 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2016__21__a14/ %G en %F DOCMA_2016__21__a14