Two-parametric bifurcations of singular points of the normalized Ricci flow on generalized Wallach spaces

We consider the normalized Ricci flow on generalized Wallach spaces that could be reduced to a system of nonlinear ordinary differential equations. As a main result we get, two-parametric bifurcations of singular points of the system under consideration in the important partial case ai = aj, i, j ∈ {1, 2, 3}, i ≠ j.