报告人：罗天文

时 间：2025-10-28 09:00:00

地 点：腾讯会议(线上)421-137-092

报告摘要：We study the two-dimensional acoustical rarefaction waves under the irrotational assumptions. We provide a new energy estimates without loss of derivatives. We also give a detailed geometric description of the rarefaction wave fronts. As an application, we show that the Riemann problem is structurally stable in the regime of two families of rarefaction waves.