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[en] The mapping of a straight line in the particle-hole space onto the manifold of Slater determinants is found to induce a trajectory whose curvature is between 1 and √3. This curvature depends on the direction of the line, which renders the particle-hole space anisotropic. There are indications that collective motion induces a large curvature of the path
Journal
Journal de Physique. Lettres; ISSN 0302-072X; 
; v. 40(8); p. L.177-L.180
; v. 40(8); p. L.177-L.180
[en] The Racah parameters are calculated using Slater and Clementi-Raimondi values of atomic screening parameters. (author)
Journal
Revue Roumaine de Physique; ISSN 0035-4090; ; v. 25(2); p. 135-137
; v. 25(2); p. 135-137
[en] The ionization energies for many electron atoms are calculated using Slater's values of atomic screening parameters and are compared with experimental data. (author)
Journal
Revue Roumaine de Physique; ISSN 0035-4090; ; v. 24(6); p. 559-560
; v. 24(6); p. 559-560
[en] We prove that the energy function associated to linear Hamiltonians in bifermion operators, defined on the complex Grassmann manifold appearing in the Hartree-Fock problem is a perfect Morse function in extended sense. Also we present a description of the non- degenerate critical manifolds of the energy function considered.(authors)
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