“…With these types of initial data, many important components of the two-dimensional Riemann problems can be determined for various systems of conservation laws (see [1,2,11,15,16] and the references therein). In the present study, we are concerned with the two-dimensional Riemann problem for system (1.1) where (s i , c i ) = (0, 0), i = 1, 2, 3, are different constant values, and (μ 0 , ν 0 ) is a given unit normal vector of the corresponding initial discontinuity.…”