The size-extensivity of correlation energy estimators based on effective characteristic polynomials

@article{Homeier1997TheSO,
  title={The size-extensivity of correlation energy estimators based on effective characteristic polynomials},
  author={Herbert H. H. Homeier},
  journal={Journal of Molecular Structure-theochem},
  year={1997},
  volume={419},
  pages={29-31}
}
Performance of the Effective-characteristic-polynomial Pi2 Method for Diatomic Molecules: Basis-set Dependencies and Vibrational Levels
The performance of the recently introduced $\Pi$2 method [1] is investigated for some diatomic molecules. For this end, ground state energies are calculated at the MP4 level for various basis sets of
Power series expansion of the roots of a secular equation containing symbolic elements: Computer algebra and Moseley’s law
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D ec 2 00 2 On the extrapolation of perturbation series ∗
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