报告人 ：俞成(佛罗里达大学)

日期：2020年9月19日

时间：9:30开始

腾讯会议 ID：985 275 356（无密码）

报告摘要：In this talk, I will talk about the existence of global weak solutions for the compressible Navier-Stokes equations, in particular, the viscosity coefficients depend on the density. Our main contribution is to further develop renormalized techniques so that the Mellet-Vasseur type inequality is not necessary for the compactness.  This provides existence of global solutions in time, for the barotropic compressible Navier-Stokes equations, for any $\gamma>1$, in three dimensional space, with large initial data, possibly vanishing on the vacuum. This is a joint work with D. Bresch, A. Vasseur.

报告人简介：俞成，佛罗里达大学数学系助理教授，博士毕业于匹兹堡大学。研究方向为偏微分方程。

联系人：穆春来 王华桥

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