Abstract
It is shown that the constrained-component variation generally suggested by Rosicky and Mark is very fundamental, has consistent variational features and reproduces, as a special case, earlier variational results for atomic systems obtained by Drake and Goldman. Numerical merits and demerits of this method are qualitatively assessed.
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Datta, S.N., Jagannathan, S. Analysis and merit of the constrained-component variation in dirac theory. Pramana - J Phys 23, 467–473 (1984). https://doi.org/10.1007/BF02846622
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DOI: https://doi.org/10.1007/BF02846622