Abstract
By using singular surface theory and ray theory the speeds of propagation of fast and slow waves, propagating into a medium in arbitrary motion, have been obtained in relativistic magnetohydrodynamics. The differential equation governing the growth of these waves along the rays has been derived and the solution has been presented in integral form.
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Gopalakrishna, A.V., Ganagi, M.S. Weak discontinuities in relativisitic MHD. Astrophys Space Sci 120, 139–149 (1986). https://doi.org/10.1007/BF00653906
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DOI: https://doi.org/10.1007/BF00653906