报告题目:Can You Hear Where a Drum is Struck?
报告人:席亚昆 研究员 (浙江大学)
报告时间:2023年11月8日(周三下午)15:00-16:00
报告地点:广B302
摘要:When you hit a drum, the sound it makes is a mix of overtones with frequencies corresponding to the drum's Laplace eigenvalues. A classic paper by Kac [“Can one hear the shape of a drum?” 1966] asks if the frequencies of these overtones uniquely determine the shape of the drum head. This question is still richly studied. We recently posed a related question: Can one hear where a drum is struck? Imagine you know a drum's shape. Could you determine where it is struck, up to symmetry, by listening also to the amplitudes of these overtones? In this talk, I will state this problem precisely, give additional physical interpretations, work some examples, and share our results so far.
报告人简介:席亚昆,浙江大学数学科学学院研究员,博士生导师,国家级青年专家,2008-2012本科就读于浙江大学数学系,获数学与应用数学学士学位。2012-2017,美国约翰霍普金斯大学博士研究生获博士学位,师从国际著名调和分析专家Christopher D.Sogge教授。2017-2020在美国罗切斯特大学任客座助理教授,2020年八月加入浙江大学数学科学学院任研究员。其研究领域主要为经典调和分析以及流形上的调和分析问题,文章发表于Camb J Math, Amer J Math, Proc London Math Soc, Comm Math Phys, Trans AMS, J Func Anal 等国际著名数学期刊。主持科技部重点研发计划青年科学家项目一项,国家自然科学基金面上项目一项。
邀请人:金永阳、曹军