报告题目:Some mathematical problems in gravitational waves
报 告 人:张晓 研究员(中科院数学与系统科学研究院)
报告时间:2019年6月7日(星期五)下午17:00-18:00
报告地点:4号楼4318室
邀 请 人:郑驻军 教授
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数学学院
2019年6月6日
报告摘要:
The nonlinear effects of gravitational waves are described by Bondi-Sachs spacetimes. In the case of zero cosmological constant, they were originally introduced by Bondi for axi-symmetric spacetimes, and generalized by Sachs to general asymptotically flat spacetimes over 50 years ago. Bondi also defined the Bondi energy-momentum at null infinity, which represents the rest energy of spacetimes after the loss due to gravitational radiation.
In this talk, we shall discuss some basic problems about the Bondi energy-momentum as well as some relevant PDE problems.
报告人简介:
张晓,江苏人,国家杰出青年基金获得者。曾先后就读于复旦大学和香港中文大学,现为中科院数学与系统科学研究院研究员,博士生导师。研究兴趣广泛,研究方向为微分几何、广义相对论和非交换几何。长期致力于基础数学专业数学物理方向的研究,在国际上有影响的学术刊物上发表了一系列具有代表性的学术成果。