微分方程数值解学术报告
报告题目: Discontinuous Galerkin methods for nonlocal diffusion problems
报告人:卢键方 副教授(华南理工大学)
报告时间:2026年7月2日 (周四) 下午15:00~16:30
报告地点:老虎机
425
报告摘要: In this talk, we consider discontinuous Galerkin (DG) methods for one-dimensional nonlocal diffusion (ND) problems. The DG methods proposed here have its local counterparts (IPDG, NIPG, etc.), thus the numerical scheme will reduce to the existing DG schemes as the horizon vanishes. We also define the discrete energy norm so as to analyze these DG methods. Rigorous proofs are provided to demonstrate the stability and error estimates of these DG schemes. Particularly, we demonstrate the proposed method is asymptotically compatible by using the interpolation theory. Some numerical experiments are shown to validate the theoretical results.
关键词: Discontinuous Galerkin; Nonlocal diffusion; Asymptotic compatibility; Interior penalty
报告人简介:卢键方博士于2010年在中国科学技术大学获得理学学士学位,2016年博士毕业于中国科学技术大学,2016-2018年在北京计算科学研究中心做博士后,2018-2021年在华南师范大学华南数学应用与交叉研究中心当讲师, 2021年8月至今在华南理工大学老虎机
任副教授。研究兴趣包括计算流体力学、计算材料力学和高精度数值算法设计与分析。
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