报告题目：A posteriori error estimator for weak Galerkin finite element method with hierarchical bases of the Stokes problem

报 告 人：张佳川博士  南方科技大学

报告时间：2020年6月18日下午 2:30-3:30

报告地点：腾讯会议 ID：368 452 008

会议密码：061820

点击链接入会，或添加至会议列表：https://meeting.tencent.com/s/sN0cwS0DQvj6

校内联系人：张凯  zhangkaimath@jlu.edu.cn

报告摘要：

In this talk, based on a posteriori error estimator with hierarchical bases, an adaptive weak Galerkin finite element method (WGFEM) is proposed for the Stokes problem. For the error estimator, we need solve a linear algebraic system only with diagonal entries corresponding to the degree of freedoms, which reduces the computational cost sharply. The upper bound and lower bound of error estimator are also shown to addresses the reliability of the adaptive method. Numerical simulations

are provided to demonstrate the effectiveness and robustness of our algorithm.

报告人简介：

Jiachuan Zhang is now a post-doctor at Southern University of Science and Technology. Before this position, he works for the 28th Research Institute of China Electronics Technology Group Corporation (2017-2018). He obtained his PhD in Mathematics from Jilin University (2017). His research interests include numerical methods for PDE, computational fluid dynamics, and deep learning.