Abstract

We consider several types of boundary value problems, including Goursat problem, mixed initial–boundary value problem, and centered wave problem for the two-dimensional steady relativistic Euler system with a general equation of state p=p(ρ) which is assumed to satisfy 0<p′(ρ)<1 and p′′(ρ)[p(ρ)+ρ]+2p′(ρ)[1−p′(ρ)]>0. Global classical solutions to these boundary value problems are constructed by the method of characteristic decomposition. Using these results, we also construct a global supersonic relativistic jet flow out of a semi-infinite convex duct intovacuum.

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