报告承办单位: 数学与统计学院
报告题目: Epitaxial thin film growth model and its numerical simulation
报告人姓名: 王成
报告人所在单位: University of Massachusetts Dartmouth
报告人职称/职务及学术头衔: 教授
报告时间: 2026年6月11日下午 14:30-16:30
报告地点: 云塘校区理科楼A212
邀请人: 刘乐乐
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(Cheng Wang),美国马萨诸塞大学达特茅斯分校(UMassD)数学系教授。1993年毕业于中国科学与技术大学获数学学士学位,2000年在美国天普大学获得博士学位,师从刘建国教授。2000-2003年在美国印第安纳大学做博士后,师从Roger Temam和汪守宏教授。2003-2008年在美国田纳西大学诺克斯维尔分校任助理教授。主要从事偏微分方程的稳定、精确数值算法,以及数值分析等研究,在SIAM Numer. Anal.,Numer. Math.,Math. Comput.,J. Comput. Phys.,IMA J. Numer. Anal.等顶级期刊上发表学术论文140余篇,引用次数超过9000次。同时,他还担任了Numerical Mathematics: Theory, Methods and Applications的编委。