学术活动
Shock formation in compressible Euler equations
2014-07-08
来源:科技处 点击次数:主讲人:Ronghua Pan (Georgia Institute of Technology)
时 间:7月8日上午 10:00-11:00
地 点:必赢76net线路官网北二515教室
摘 要:It is well-known that shock will form in finite time for hyperbolic conservation laws from initial compression no matter how small and smooth the data are. Classical results, including P. D. Lax, T. Liu, Li-Zhou-Kong, confirms that when initial data are small near constant states, nonlinear compression does lead to finite time shock formation. A natural puzzle is how this phenomena could be proved for large data. Joint with G. Chen and S. Zhu, we justify this expectation under some reasonable conditions for compressible Euler equations, in both isentropic and adiabatic cases.