报告人: Dr. Yiqi Gu,  Department of Mathematics, Purdue University

报告题目: Efficient spectral methods for elliptic PDEs in domains of complex geometry

摘要: An efficient spectral solver is developed for elliptic partial differential equations in complex domains. By a fictitious domain approach, an extended problem is built by embedding the original domain into an enlarged and regular one. Two types of Petrov-Galerkin formulations with special trial and test functions are presented and analyzed. A fast algorithm is developed for solving the corresponding linear system. We present ample numerical results to show the efficiency and accuracy of this approach.

时间：2019年3月12日下午1:30-2:30

地点：工商楼200-9

联系人：王何宇(wangheyu@zju.edu.cn)

报告人介绍： 顾亦奇博士, 是浙江大学数学科学学院2012届（08级）信息与计算科学专业优秀毕业生。先后在美国华盛顿大学和普渡大学攻读硕士与博士学位，博士导师沈捷教授。他的研究方向主要为微分方程数值解，计算流体力学，数据科学和机器学习。

欢迎有兴趣的老师和同学参加（欢迎本科同学）。