报告题目：Introduction to quasi-local mass problems in general relativity and differential geometry

报告人：Pengzi Miao（苗蓬子）（School of Mathematical Sciences，Monash University，Australia）

地点：理科楼309

时间：2009.6.25（周四）下午4:00

内容简介：

In differential geometry, there are many interesting questions that are motivated by Einstein\'s theory of general relativity. One such a question is known as the quasi-local mass problem. Briefly speaking, this question asks for a quanity that could measure the gravitational energy associated to a bounded region in a space time. Mathematically, given a compact manifold with a nonempty boundary, one is interested in studying the boundary behavior of the manifold assuming its scalar curvature is bounded from below. In this talk, we will give a succinct introduction to this problem with an aim to bring some front-edge research study to the attention of a genera audience.

报告人简介：

 苗蓬子，澳大利亚籍华人，美国Stanford大学数学博士，本科毕业于北京大学数学学院。

Employment History－

Lecturer (continuing), School of Mathematical Sciences, Monash University,
Australia, 04/2006－present
Ky Fan Visiting Assistant Professor, Department of Mathematics, University
of California, Santa Barbara, USA, 07/2004－02/2006
Postdoctoral Fellow, Mathematical Sciences Research Institute, Berkeley, USA,
08/2003－06/2004

Research Interests－
 Dierential Geometry: scalar curvature, minimal surfaces, harmonic maps, crit-
ical metrics
 Mathematical Relativity: constraint equation, existence of horizons, quasi-local
mass question