Spin polarization of conduction electrons and the behavior of local magnetic moments of Мn in $Ni_2Mn_{1-x}V_xSn$ alloys

А study is reported of the spatial distribution of the spin density of conduction electrons and the dependence of the magnetic moment of Mn atoms on the concentration of vacancies in $Ni_2Mn_{1-x}V_xSn$ alloys. It is shown that μМn remains constant for $0\le х\le 0,5$ but decreases for х > 0,5.