报告题目： Asymptotics for Null-timelike Boundary Problems for General Linear Wave Equations

报告专家：韩青教授

报告时间：2017年10月17日（星期二）9:30 – 10:30

报告地点：数统学院201学术报告厅

摘要: We study the linear wave equation in Bondi-Sachs coordinates, for an asymptotically flat Lorentz metric. We consider the null-timelike boundary problem, where an initial value is given on a null surface and a boundary value on a timelike surface. We derive spacetime estimates in appropriate Sobolev spaces and asymptotic expansions of solutions.

专家简介：韩青，美国圣母大学终生教授，北京大学北京国际数学研究中心教授。