Perturbation theory for configuration in
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W.H. Adams
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Article
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1971
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Elsevier Science
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English
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A zerotb order hamiltonian is given for configuration interaction nravefunctions constructed from orbitals which may be open shell Hartree-Fock orbitals, multiconfiguration eelf consistent fieId orbitaIs, or eome other kind of orbitals which are eigenfunctions of a common one-electron hamiltonian. T