An approximate universal energy functional in density functional theoryLUDENA, E. V.The Journal of chemical physics. 1983, Vol 79, Num 12, pp 6174-6181, issn 0021-9606Article

Variational principle with built-in pure state N-representability conditions: the two-electron caseLUDENA, E. V.Journal of molecular structure. 1985, Vol 123, Num 3-4, pp 371-382, issn 0022-2860Article

Kohn-Sham theory and the representability problemLUDENA, E. V; MUJICA, V.Journal of molecular structure. 1990, Vol 210, pp 9-28, issn 0022-2860, 20 p.Conference Paper

Necessary conditions for the mapping of γ into ρLUDENA, E. V; SIERRAALTA, A.Physical review. A, General physics. 1985, Vol 32, Num 1, pp 19-25, issn 0556-2791Article

Exact non-Born-Oppenheimer wave function for the Hooke-Calogero model of the H₂ molecule : A useful exact molecular model for electron correlation studiesLOPEZ, X; UGALDE, J. M; LUDENA, E. V et al.The European physical journal. D, Atomic, molecular and optical physics (Print). 2006, Vol 37, Num 3, pp 351-359, issn 1434-6060, 9 p.Article

Local-scaling density-functional method : intraorbit and interorbit density optimizationsKOGA, T; YAMAMOTO, Y; LUDENA, E. V et al.Physical review. A. 1991, Vol 43, Num 11, pp 5814-5820, issn 1050-2947Article

Nonvariational configuration interaction calculations by local scaling methodKOGA, T; YAMAMOTO, Y; LUDENA, E. V et al.The Journal of chemical physics. 1991, Vol 94, Num 5, pp 3805-3807, issn 0021-9606, 3 p.Article

Formulation of N- and V-responsible density functional theory. V: Exchange-only self-consistent fieldKRYACHKO, E. S; LUDENA, E. V.International journal of quantum chemistry. 1992, Vol 43, Num 6, pp 769-782, issn 0020-7608Article

Local-scaling energy density functional theoryKRYACHKO, E. S; LUDENA, E. V.Studies in physical and theoretical chemistry. 1992, Vol 77, pp 136-165, issn 0167-6881, AArticle

Local-scaling version of density functional theory : an overviewKRYACHKO, E. S; LUDENA, E. V.New journal of chemistry (1987). 1992, Vol 16, Num 12, pp 1089-1098, issn 1144-0546Conference Paper

Formulation of N- and v-representable density functional theory. VIII : Relationship between the density-driven and the local-scaling versionsKRYACHKO, E. S; LUDENA, E. V.The Journal of chemical physics. 1991, Vol 95, Num 12, pp 9054-9059, issn 0021-9606Article

Formulation of N- and ν-representable density functional theory. IV, Non-Born-Oppenheimer approachKRYACHKO, E. S; LUDENA, E. V; MUJICA, V et al.International journal of quantum chemistry. 1991, Vol 40, Num 5, pp 589-604, issn 0020-7608Article

Molecular orbital study of cobalt-oxygen interactionHERNANDEZ, A; RUETTE, F; LUDENA, E. V et al.Journal of molecular catalysis. 1987, Vol 39, Num 1, pp 21-41, issn 0304-5102Article

Formulation of N- and υ-representable density functional theory. III : Excited statesKRYACHKO, E. S; LUDENA, E. V; KOGA, T et al.Journal of mathematical chemistry. 1992, Vol 11, Num 4, pp 325-339, issn 0259-9791Article

Theoretical explanation of the observed shift in density of states upon hydrogen chemisorption on nickel = Explication théorique du déplacement observé de la densité des états lors de la chimisorption d'hydrogène sur le nickelRUETTE, F; LUDENA, E. V; HERNANDEZ, A et al.Surface science. 1986, Vol 167, Num 2-3, pp 393-400, issn 0039-6028Article

Semiempirical study of electronic and bonding properties of iron silicide clustersRODRIGUEZ, L. J; RUETTE, F; CASTRO, G. R et al.Theoretica chimica acta. 1990, Vol 77, Num 1, pp 39-56, issn 0040-5744, 18 p.Article

Formulation of N- and υ-representable density functional theory. VI: Fractional occupation numbersKRYACHKO, E. S; LUDENA, E. V.Journal of molecular structure. Theochem. 1993, Vol 287, pp 1-9, issn 0166-1280Conference Paper

Calculation of the defect kinetic energy in Kohn-Sham theory by means of local-scaling transformationsLUDENA, E. V; LOPEZ-BOADA, R; MALDONADO, J et al.Physical review. A. 1993, Vol 48, Num 3, pp 1937-1943, issn 1050-2947, AArticle

Local-scaling density functional theory : prospects for applications to the electronic structure of atomsLUDEÑA, E. V; KRYUACHKO, E. S.Revista Mexicana de Astronomía y Astrofísica. 1992, Vol 23, pp 95-106, issn 0185-1101, NSConference Paper