Pd. Lax et Xd. Liu, SOLUTION OF 2-DIMENSIONAL RIEMANN PROBLEMS OF GAS-DYNAMICS BY POSITIVE SCHEMES, SIAM journal on scientific computing, 19(2), 1998, pp. 319-340
The positivity principle and positive schemes to solve multidimensiona
l hyperbolic systems of conservation laws have been introduced in [X.-
D. Liu and P.D. Lax, J. Fluid Dynam., 5 (1996), pp. 133-156. Some nume
rical experiments presented there show how well the method works. In t
his paper we use positive schemes to solve Riemann problems for two-di
mensional gas dynamics.