A class of higher-order length preserving and energy decreasing IMEX schemes for the Landau-Lifshitz equation
主 讲 人 :李晓丽 教授
活动时间:10月12日16时00分
地 点 :理科群1号楼C-105室
讲座内容:
In this talk we present new higher-order implicit-explicit (IMEX) schemes for the Landau-Lifshitz equation. These schemes are linear, length preserving and only require solving one elliptic equation with constant coefficients at each time step. We show that numerical solutions of these schemes are uniformly bounded without any restriction on the time step size, and establish rigorous error estimates of orders 1 to 5 in a unified framework. Finally numerical examples are presented to validate the proposed schemes.
主讲人介绍:
李晓丽,山东大学教授,博士生导师,国家高层次青年人才入选者,山东省杰青,山东大学杰出中青年学者。担任中国数学会计算数学分会常务理事。主要研究领域为偏微分方程数值解与计算流体力学。在SIAM J. Numer. Anal., SIAM J. Sci. Comput., Math. Comp., J. Fluid Mech., Math. Mod. Meth. Appl. Sci.及J Comput. Phys.等计算数学高水平期刊上发表学术论文多篇。2019年入选“博士后创新人才支持计划”,主持国家自然科学基金面上项目、重点项目子课题、青年项目等多个国家及省部级项目。