Ondes de choc et hypothèses de compressibilité en magnétohydrodynamique relativiste

Abstract

The principal purpose of this paper is to show that the normals to the hypersurfaces in space-time which represent the shock waves of relativistic magnetohydrodynamics are spacelike when the caloric equation of state of the medium satisfies the conditions of compressibility previously given in references [5] and [6]. Thus, the velocities of these waves are less than the local velocity of light and the theory is consistent with the postulates of a relativistic theory. A theorem previously given in reference [5] concerning the stability of Alfven shock waves, is corrected in this paper.