Seminars on Numerical Algorithms, Analyses, and Applications: Discontinuous Galerkin Methods for Fourth Order Variational Inequality

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:崔金涛(暨南大学)
:2026-03-06 10:30
:海韵园行政楼C503

报告人:崔金涛暨南大学

 间:20263610:30

 点:海韵园行政楼C503

内容摘要:

In this work, we study a family of discontinuous Galerkin methods and other methods for the displacement obstacle problem of Kirchhoff plates on convex polyhedral domains, which are characterized as fourth-order elliptic variational inequalities of the first kind. We develop a unified approach for DG methods where the weak complementarity form of the variational inequality is used. We prove that the error in the energy norm is of order α for the quadratic method, where α is determined by the geometry of the domain. Under additional regularity assumptions on the solution and contact set, we derive an improved error estimate for the cubic method. Numerical experiments demonstrate the performance of the methods and confirm the theoretical results. 

人简介

崔金涛,暨南大学教授、博士生导师,现任广东省数学会副理事长、广东省计算数学学会副理事长。2004年本科毕业于大连理工大学,2010年博士毕业于美国路易斯安那州立大学;曾任美国明尼苏达大学博士后,阿肯色大学小石城分校助理教授,香港理工大学助理教授(研究)20221月就职暨南大学信息科学技术学院。崔金涛博士的主要研究方向为计算电磁场学、偏微分方程数值解法、有限元方法、多重网格方法等;主持国家自然科学基金面上项目2项、广东省自然科学基金面上项目1项、香港研究资助局GRF项目1项;在 Mathematics of ComputationNumerische MathematikComputer Methods in Applied Mechanics and EngineeringJournal of Scientific Computing 等计算数学领域高水平学术期刊上发表研究论文50余篇。

 

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