1. Preface

   • Jan Linderberg

   EditorialNotes Pages: 1 - 2

2. The question of the completeness of the natural orbitals with nonzero occupation numbers for atoms and molecules

   • Robert C. Morrison
   • Zhongxiang Zhou
   • Robert G. Parr

   OriginalPaper Pages: 3 - 11

3. Atomic natural orbital basis sets for transition metals

   • Charles W. Bauschlicher Jr.
   • Peter R. Taylor

   OriginalPaper Pages: 13 - 24

4. Electron densities from the Brueckner Doubles method

   • Caroline M. van Heusden
   • Rika Kobayashi
   • Nicholas C. Handy

   OriginalPaper Pages: 25 - 39

5. Stationary perturbation theory

   • Werner Kutzelnigg

   OriginalPaper Pages: 41 - 81

6. Unitary group approach to reduced density matrices

   • J. Paldus
   • M. D. Gould

   OriginalPaper Pages: 83 - 96

7. Low-lying triplet electronic states of acetylene:cis ³ B ₂ and³ A ₂,trans ³ B _u and³ A _u

   • Yukio Yamaguchi
   • George Vacek
   • Henry F. Schaefer III

   OriginalPaper Pages: 97 - 113

8. A spherically averaged representation of the atomic one-particle reduced density matrix

   • Hartmut Schmider
   • Vedene H. Smith Jr.

   OriginalPaper Pages: 115 - 127

9. Spin-projected Extended Hartree-Fock using a Valence Bond approach

   • Carsten P. Byrman
   • Joop H. van Lenthe
   • Jacob Verbeek

   OriginalPaper Pages: 129 - 136

10. Fukutome classes in momentum space

    • Jean-Louis Calais

    OriginalPaper Pages: 137 - 147

11. Efficient use of Jacobi rotations for orbital optimization and localization

    • Richard C. Raffenetti
    • Klaus Ruedenberg
    • Henry F. Schaefer

    OriginalPaper Pages: 149 - 165

12. On the uncorrelated reference for calculation of properties

    • William A. Parkinson
    • John R. Sabin
    • Jens Oddershede

    OriginalPaper Pages: 167 - 179

13. Freeon unitary group formulation of Hartree-Fock theory

    • Frederick A. Matsen
    • Loudon L. Campbell

    OriginalPaper Pages: 181 - 209