Reduced Partitioning Procedure in Configuration Interaction Studies. I. Ground States

Quantum Theory of Many-Particle Systems. I. Physical Interpretations by Means of Density Matrices, Natural Spin-Orbitals, and Convergence Problems in the Method of Configurational Interaction

1955 • 3,424 citations

A First Course in Numerical Analysis

1966 • 2,477 citations

N�herungsmethode zur L�sung des quantenmechanischen Mehrk�rperproblems

1930 • 1,701 citations

Computational Methods of Linear Algebra

1964 • 1,640 citations

The Wave Mechanics of an Atom with a Non-Coulomb Central Field. Part I. Theory and Methods

1928 • 1,512 citations

Variational Principles for Scattering Processes. I

1950 • 1,238 citations

A Note on the Quantum-Mechanical Perturbation Theory

1951 • 924 citations

On<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>σ</mml:mi></mml:math>-Type Doubling and Electron Spin in the Spectra of Diatomic Molecules

1929 • 919 citations

�ber den Grundterm der Zweielektronenprobleme von H?, He, Li+, Be++ usw.

1930 • 777 citations

Successive Approximations by the Rayleigh-Ritz Variation Method

1933 • 707 citations

Recent Developments in Perturbation Theory

1964 • 656 citations

Studies in Perturbation Theory. IV. Solution of Eigenvalue Problem by Projection Operator Formalism

1962 • 621 citations

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

1965 • 432 citations

Studies in perturbation theory

1963 • 387 citations

A Natural Orbital Based Energy Calculation for Helium Hydride and Lithium Hydride

1966 • 359 citations

N�herungsformeln f�r die Zylinderfunktionen f�r gro�e Werte des Arguments und unbeschr�nkt ver�nderliche Werte des Index

1909 • 222 citations

Studies in perturbation theory XIII. Treatment of constants of motion in resolvent method, partitioning technique, and perturbation theory

1968 • 215 citations

Many-Body Perturbation Theory Applied to Open-Shell Atoms

1966 • 202 citations

The density matrix in self-consistent field theory I. Iterative construction of the density matrix

1956 • 197 citations

Two-Electron Atoms III. A Sixth-Order Perturbation Study of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>1</mml:mn><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>Ground State

1963 • 195 citations

Studies in Perturbation Theory. V. Some Aspects on the Exact Self-Consistent Field Theory

1962 • 182 citations

Algorithm for Diagonalization of Large Matrices

1965 • 178 citations

Electric and magnetic susceptibilities

1962 • 174 citations

Studies in Perturbation Theory. IX. Connection Between Various Approaches in the Recent Development—Evaluation of Upper Bounds to Energy Eigenvalues in Schrödinger's Perturbation Theory

1965 • 174 citations

Variational Treatment of the HeH+ Ion and the β-Decay in HT

1965 • 164 citations

Molecular Orbital Studies of the Ground and Low-Lying Excited States of the HeH+ Molecular Ion

1966 • 156 citations

Correlation Splitting in Helium‐Like Ions

1956 • 153 citations

Studies in Perturbation Theory. XI. Lower Bounds to Energy Eigenvalues, Ground State, and Excited States

1965 • 146 citations

Configuration Interaction in the Hydrogen Molecule—The Ground State

1960 • 141 citations

Molecular Orbital Studies of Diatomic Molecules. I. Method of Computation for Single Configurations of Heteronuclear Systems

1960 • 129 citations

Hartree—Fock—Roothaan Wavefunctions, Potential Curves, and Charge-Density Contours for the HeH+(X 1Σ+) and NeH+(X 1Σ+) Molecule Ions

1965 • 129 citations

Les problèmes de perturbations et les champs self-consistents

1932 • 123 citations

Hydrogen-Atom Polarizability as a Hartree–Fock Perturbation Expansion: A Geometric Approximation to Atomic Polarizabilities

1968 • 115 citations

Studies in perturbation theory

1964 • 114 citations

Refinement of the Brillouin-Wigner Perturbation Method

1956 • 112 citations

Variation-Perturbation Expansions and Padé Approximants to the Energy

1970 • 111 citations

Lower Bounds for Eigenvalues with Application to the Helium Atom

1960 • 97 citations

Studies in perturbation theory

1964 • 96 citations

New Partitioning Perturbation Theory. I. General Formalism

1970 • 86 citations

Correlation Energy and Molecular Properties of Hydrogen Fluoride

1967 • 85 citations

On Errors in Hartree—Fock Calculations

1963 • 82 citations

Convergence of Padé Approximants for the Bethe-Salpeter Amplitude

1967 • 78 citations

Variational Form of Van Vleck Degenerate Perturbation Theory with Particular Application to Electronic Structure Problems

1968 • 75 citations

Studies in perturbation theory

1964 • 73 citations

Uncoupled Hartree–Fock Calculations of the Ring-Current Contribution to the Magnetic Susceptibilities of Conjugated Molecules

1969 • 73 citations

Padé approximants to physical properties via inner projections

1971 • 66 citations

Continued Fractions and Upper and Lower Bounds in the Brillouin‐Wigner Perturbation Scheme

1967 • 59 citations

Dispersion forces, second- and third-order energies

1968 • 57 citations

Natural Orbital Valence Shell CI Studies of Diatomic Molecules. II. Potential Energy Curves and Spectra of Boron Carbide

1970 • 56 citations

Studies in perturbation theory

1964 • 56 citations

Ground State of the HeH+ Molecule Ion

1963 • 53 citations

Rayleigh-Schrödinger multiple perturbation theory

1969 • 52 citations

Natural-Orbital Valence-Shell CI Studies of Diatomic Molecules. I. Potential-Energy Curves and Spectra of Imidogen

1970 • 50 citations

Continued Fraction Approximants to the Brillouin-Wigner Perturbation Series

1957 • 41 citations

Variational Methods in the Wave Operator Formalism: Applications in Variation-Perturbation Theory and the Theory of Energy Bounds

1972 • 40 citations

A Perturbation-Variation Calculation of Eigenvalues

1961 • 40 citations

Approximate Wave Functions for Molecules and Crystals Using Perturbation Theory

1967 • 37 citations

Geometric Approximation in Perturbation Theory

1969 • 36 citations

Reduced partitioning technique for configuration interaction calculations using Padé approximants and inner-projections

1971 • 36 citations

Padé Approximants and Inner Projections in the Brillouin-Wigner Perturbation Scheme for He-like Ions

1970 • 35 citations

Natural Expansions of Exact Wave Functions. I. Method

1962 • 35 citations

Lower-Bound Procedure for Energy Eigenvalues by the Partitioning Technique

1966 • 29 citations

Upper and lower bounds in second-order perturbation theory and the unsÖld approximation

2009 • 28 citations

Lower Bounds to Eigenvalues of the Schrödinger Equation. II. Application to Helium and Li+

1967 • 23 citations

Perturbation theory with Hartree-Fock states

1967 • 18 citations

Generalized Sternheimer Potential

1966 • 13 citations

Variational Perturbation Method Based on the Principle of Moments

1968 • 13 citations

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