Improved calculation of multicharged ion electron density by the method of many-dimensional angular Coulomb functions

Analytical expression for multi-electron wave functions and distribution of ion electron density were derived by the method of many-dimensional angular Coulomb functions (MACF). Expression for electron density in the nucleus centre was obtained. The MACF method was used to calculate multi-electron wave functions, binding energies and distribution of electron density of helium-like and lithium-like ions