SEARCH Articles Figures Tables Density Matrix of Crystals in the Hartree-Fock Method Density-based Hartree-Fock theory matrix Dirac-Hartree-Fock-Roothaan Matrix Equations Excited states matrix Hartree-Fock Fock matrix Hartree-Fock approximation, matrix Hartree-Fock equation matrix Hartree-Fock equation matrix, derivation Kramers-Restricted 2-Spinor Matrix Dirac-Hartree-Fock Equations Matrix Dirac-Hartree-Fock Equations in a 2-Spinor Basis