Plasma equilibrium with barriers

The recently proposed concept on origination of the transport barrier in the tokamak plasma as bifurcation of the equilibrium state with the toroidal field change, including the plasma periphery, is analyzed. The analysis is carried out within the frames of the cylindrical approximation. It is shown that all the equilibrium solutions within the frames of the concept under consideration constantly depend on the parameters, the bifurcations are absent, the results is determined by the model assumptions, necessary for the task closing. The results may be essentially changed after removing even a part of these limiting assumptions. The effect of rotation on the plasma equilibrium under typical conditions is negligible. Besides, from the viewpoint of the formal analysis of the forces balance the rotation does not facilitate but on the contrary prevents the creation of the pressure positive jump