報告題目：A posteriori error estimator for weak Galerkin finite element method with hierarchical bases of the Stokes problem
報 告 人：張佳川博士 南方科技大學
報告時間：2020年6月18日下午 2:30-3:30
報告地點：騰訊會議 ID：368 452 008
會議密碼：061820
點擊鍊接入會，或添加至會議列表：https://meeting.tencent.com/s/sN0cwS0DQvj6
校内聯系人：張凱 zhangkaimath@jlu.edu.cn
報告摘要：
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.
報告人簡介：
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.
