Konrad Koc

Relativistic multireference many-body perturbation theory for quasidegenerate systems: Energy levels of ions of the oxygen isoelectronic sequence

Marius J. Vilkas, Yasuyuki Ishikawa, Konrad Koc · Physical Review A · 1999 · 78 citations

Localized Excited State, Engineering, Many-body Quantum Physic +19

Relativistic many-body perturbation theory based on the no-pair Dirac-Coulomb-Breit Hamiltonian: Relativistic correlation energies for the noble-gas sequence through Rn (<i>Z</i>=86), the group-II<i>B</i>atoms through Hg, and the ions of Ne isoelectronic sequence

Yasuyuki Ishikawa, Konrad Koc · Physical Review A · 1994 · 72 citations

Engineering, Nuclear Physics, Noble-gas Sequence +17

Single-Fock-operator method for matrix Dirac-Fock self-consistent-field calculations on open-shell atoms

Konrad Koc, Yasuyuki Ishikawa · Physical Review A · 1994 · 42 citations

Localized Excited State, Engineering, Many-body Quantum Physic +17

Quadratically convergent multiconfiguration Dirac-Fock and multireference relativistic configuration-interaction calculations for many-electron systems

Marius J. Vilkas, Yasuyuki Ishikawa, Konrad Koc · Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · 1998 · 34 citations

Engineering, Many-body Quantum Physic, Computational Chemistry +16

Second-order multiconfigurational Dirac-Fock calculations on boronlike ions

Marius J. Vilkas, Yasuyuki Ishikawa, Konrad Koc · International Journal of Quantum Chemistry · 1998 · 25 citations

Engineering, Theoretical Inorganic Chemistry, Boronlike Ions +18