报告题目:Epitaxial thin film growth model and its numerical simulation
报告人:王成 教授 美国麻省大学达特茅斯分校
报告时间:2025年12月3日10:00-11:00
报告地点:线上会议 ZOOM会议号:865 6418 1155 密码:542966
报告摘要:A nonlinear PDE model of thin film growth model, with or without slope selection, are presented in the talk. A global in time solution with Gevrey regularity is established for the one with slope selection. For the numerical simulation, an idea of convex-concave splitting of the corresponding physical energy is applied, which gives to an implicit treatment for the convex part and an explicit treatment for the concave part. That in turn leads to a numerical scheme with a non-increasing energy. A first order accurate linear splitting and a second order accurate linear iteration algorithm are also considered, with some numerical simulation results presented.
报告人简介:王成,麻省大学达特茅斯分校数学系教授,1993 年本科毕业于中国科技大学,2000 年在美国坦普尔大学获得博士学位,2000-2003 年在美国印尼安纳大学从事博士后研究工作,2003-2008 年在美国田纳西大学任助理教授,2008-2012年在美国麻省大学达特茅斯分校任助理教授,2012 年晋升为副教授,2019年晋升为教授。王成教授的主要研究领域是应用数学与计算数学,包括数值分析、偏微分方程、流体力学、计算电磁学等,目前已在 SIAM Journal on Numerical Analysis, Numerische Mathematik,Mathematics of Computation, Journal of Computational Physics等期刊上发表论文130余篇,被引8000余次,担任国际期刊Numerical Mathematics: Theory, Methods and Applications的编委。