Guseinov, Israfil Isa2025-01-272025-01-2720050259-9791https://doi.org/10.1007/s10910-004-6902-yhttps://hdl.handle.net/20.500.12428/22954With the help of addition theorems for complete orthonormal sets of Psi(alpha)-ETOs in momentum space (alpha = 1,0,-1,-2,...) introduced by the author, the general expansion formulas are established for the two- and three-center overlap integrals occurring when Hartree-Fock-Roothaan and explicitly correlated methods, respectively, are employed. The relationships obtained are valid for the arbitrary quantum numbers, screening constants and location of Psi(alpha)supercript stop-ETOs.eninfo:eu-repo/semantics/closedAccesscomplete orthonormal sets of exponential-type orbitalsaddition theoremsmomentum spaceoverlap integralsArticle38448949310.1007/s10910-004-6902-yQ2WOS:0002327936000062-s2.0-58449105340Q2