Инвариантные подмодели системы уравнений двухскоростной гидродинамики с равновесием фаз по давлению

We found the main core of Lie groups of transformations for a one-dimensional system of two-velocity hydrodynamic equations with equilibrium of pressure phases, using the theory of Lie groups and Lie algebra. Also, all systems of differential equations for invariant and partially invariant solutions for all non-subgroups, algebras that are included in optimal systems are written out. In some cases, solutions have been found.