演讲人Speaker:姚昌辉 教授
题目Title:A leap-frog finite element method for wave propagation of Maxwell-Schr\"{o}dinger equations with nonlocal effect in metamaterials
时间Date: 2021年5月29日Time:09:00--10:00
地点Venue:腾讯会议 ID:651 102 214
内容摘要Abstract:
In this paper, a novel system of Maxwell-Schr\"{o}dinger equations with nonlocal effect in metamaterials is derived from the Drude model, hydrodynamical model and Schr\"{o}dinger equation. A leap-frog finite element scheme, which can be solved one by one efficiently,is constructed by presenting a group of initial values. This scheme is proved to be stable conditionally in energy norm. It is confirmed that the errorconvergent rate is $O(\tau^2+h^r)$ by splitting the proof into three parts, where $\tau$ is the time step size, $h$ is the mesh size and $r$ is the maximum total degree of polynomials in finite element spaces. Finally, some numerical results are given to verify the theories.
个人简介(About the speaker):
姚昌辉,男,1977年01月出生,教授,博士。中国数学会计算数学分会理事,河南省智能图像学会理事。2006年6月在中国科学院获得计算数学专业理学博士学位, 2008在挪威Bergen大学获得应用数学专业哲学博士学位。2008年12月在郑州大学数学系任职,2016年12月被郑州大学聘为教授。曾主持完成国家自然科学基金青年基金和面上项目各1项,在研面上项目1项,参与完成国家自然科学基金面上项目2项。主要侧重于对电磁场(非)线性问题的(非)协调有限元超收敛研究。