1. The two-dimensional Riemann problem of gas dynamics;Li,1998
2. Existence of solutions to transonic pressure-gradient equations of the compressible Euler equations in elliptic regions;Zheng;Commun. Part. Diff. Eq.,1997
3. The pressure-gradient system on non-smooth domains;Li;Commun. Part. Diff. Eq.,2003
4. Existence of a global smooth solution for a degenerate Goursat problem of gas dynamics;Dai;Arch. Ration. Mech. Anal.,2000
5. On two-dimensional gas expansion for pressure-gradient equations of Euler system;Yang;J. Math. Anal. Appl.,2004