广州数学大讲坛第十六期
第一百五十六讲——新加坡国立大学包维柱教授学术报告
题目: Energy-stable parametric finite element methods (PFEM) for geometric PDEs and applications
时间:2022年12月1号(周四)上午9:00-10:00
地点:腾讯会议(会议号ID:840-836-458)
报告人:包维柱 教授
Abstract: In this talk, I begin with a review of different geometric flows (PDEs) including mean curvature (curve shortening) flow, surface diffusion flow, Willmore flow, etc., which arise from materials science, interface dynamics in multi-phase flows, biology membrane, computer graphics, geometry, etc. Different mathematical formulations and numerical methods for mean curvature flow are then discussed. In particular, an energy-stable semi-implicit parametric finite element method (PFEM) is presented in details. Then the PFEM is extended to surface diffusion flow and anisotropic surface diffusion flow, and a structure-preserving implicit PFEM is proposed. Finally, sharp interface models and their PFEM approximations are presented for solid-state dewetting. This talk is based on joint works with Harald Garcke, Wei Jiang, Yifei Li, Robert Nuernberg, Yan Wang and Quan Zhao.
报告人简介:
包维柱教授1995年博士毕业于清华大学,现为新加坡国立大学数学系provost讲席教授,2013年获冯康科学计算奖,2014年应邀在韩国举行的第26届国际数学家大会上作45分钟邀请报告,担任包括SIAM Journal on Scientific Computing等多个国际期刊杂志编委。包维柱教授长期从事科学与工程计算研究,主要工作涉及偏微分方程数值方法及其在量子物理、流体和材料中的应用。特别是在Bose-Einstein 凝聚的数值方法及应用、高震荡色散类偏微分方程的多尺度算法和分析、无界区域上科学和工程问题的计算等方面取得了多个重要进展。