学术活动

Stability of some stellar model - Professor Zhiwu Lin (Georgia Institute of Technology, USA)

作者:   来源:  时间:2018-06-15

题目:Stability of some stellar model

报告人: Professor Zhiwu Lin (Georgia Institute of Technology, USA)

Abstract: I will discuss some recent results on the stability of spherically symmetric equilibria of several stellar models, including Euler-Poisson, Euler-Einstein and Vlasov-Einstein models. For Euler-Poisson and Euler-Einstein models, a turning point principle (TPP) for the sharp stability criterion is obtained. For both Vlasov-Einstein and Euler-Einstein models, the linear instability in the strong relativistic limit is proved. We use a combination of first order and 2nd order Hamiltonian formulations to derive the stability criterion and study the linearized equation for initial data in the energy space. This is joint work with Chongchun Zeng (on Euler-Poisson) and with Hadzic and Rein (on Euler-Einstein-Euler and Euler-Einstein).

时间:6月15日(周五)下午4:00-5:00

地点:首都师大新教2楼  527  教室

 

欢迎全体师生积极参加!