“…The (S, L) -diagram of the critical subsystem M 1 is obtained from the bifurcation diagram consisting of the curves δ 1 , δ 2 , δ 3 [3] by adding the curves ∆ 0 and ∆ 1 , which are the projections onto the (s, ℓ) -plane of the curves (4), (5). The transformations of the diagram for λ > 0 take place at the following values of the parameter: λ * , 1 , λ * , √ 2 .…”