A superoperator derivation of the 2p—h TDA equations

Note on an Approximation Treatment for Many-Electron Systems

CHR. KN. MØLLER, M. S. Plesset · Physical Review · 1934 · 14.4K citations

Numerical Analysis, Engineering, Zero-order Approximation +16

Rotation-Vibration Spectra of Deuterated Water Vapor

W. S. Benedict, N. M. Gailar, Earle K. Plyler · The Journal of Chemical Physics · 1956 · 1.3K citations

High Resolution, Engineering, Rotation-vibration Spectra +16

Direct calculation of ionization energies

Barry T. Pickup, Osvaldo Goscinski · Molecular Physics · 1973 · 542 citations

Engineering, Physics, Propagator Equations +15

Studies in Perturbation Theory. X. Lower Bounds to Energy Eigenvalues in Perturbation-Theory Ground State

Per‐Olov Löwdin · Physical Review · 1965 · 437 citations

Spectral Theory, Energy Eigenvalues, Perturbation Theory +12

Studies in perturbation theory

Per‐Olov Löwdin · Journal of Molecular Spectroscopy · 1963 · 398 citations

Perturbation Method, Perturbation Theory, Singularly Perturbed Problem