Mathematical and computational science issues in high precision Hylleraas-configuration interaction variational calculations: III. Four-electron integrals
James S Sims, Stanley A Hagstrom
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Source: Crossref
Published: Jul 17, 2015
DOI: 10.1088/0953-4075/48/17/175003
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Abstract The Hylleraas-configuration interaction (Hy-CI) four-electron correlated integrals and their associated X auxiliary integrals are discussed. We explore the feasibility of the use of recursive methods for the X auxiliary integrals for all the cases that arise in Hy-CI calculations. The question of calibrating the calculation of these integrals is discussed, as well as ways to improve the work.
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