Propagation of weak discontinuities in radiation magnetogasdynamics

The singular surface theory is extended to study the propagation of sonic discontinuities in radiation magnetogasdynamics. The fundamental differential equations governing the growth and decay of sonic discontinuities are obtained and solved for various wave fronts. It turns out that the weak discontinuity grows into a shock and the role of finite electrical conductivity and radiative heat transfer energy is to cause damping in the formation of this shock. (author)