On existence of resistive magnetohydrodynamic equilibria
  A necessary condition for existence of general dissipative magnetohydrodynamic equilibria is derived. The ingredients of the derivation are Ohm's law and the existence of magnetic surfaces, only in the sense of KAM theorem. All other equations describing the system matter exclusively for the evaluation of the condition in a concrete case. 
H. Tasso, G. N. Throumoulopoulos