Title: EFFECTIVE INTERACTIONS IN THE BINARY METALLIC SYSTEMS
Authors: S.P.Koval' (The Ivan Franko National University of Lviv, 8 Kyrylo and Mephodii Str., Lviv, 79005, Ukraine) , V.B.Solovyan (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011, Lviv, Ukraine)

The basic approach in the microscopic theory of binary metal systems has been developed. The electron-ion model Hamiltonian with nonlocal manyparticle interactions was obtained using the statistical operator averaging for the electron-nuclear model over the localized electron states. The role of orthogonalization and exchange effects on the formation of electron-ion interactions is investigated. The transition to the ion metal model with effective manyparticle interactions was performed.

Key words: basic approach, electron-nuclei model, electron-ion model, ion model, manyparticle interactions
PACS: 71.55.Ak