Two invariant-preserving difference schemes for R2CH system

人:张启峰副教授浙江理工大学

报告时间:2024123日上午9:00-10:00

报告地点:上海财经大学红瓦楼726

报告摘要:In this talk, we develop, analyze and numerically test two classes of invariant-preserving difference schemes for a rotation-two-component Camassa-Holm system (R2CH), which contains strongly nonlinear terms and high-order derivative terms. One of them is linearized one and another one is fully nonlinear. We prove that both the numerical schemes are uniquely solvable and second-order convergent for the spatial and temporal discretizations. Optimal error estimates for the velocity in the infinite norm and for the surface elevation in the L2-norm are obtained. Extensive numerical experiments verify the convergence results as well as conservation.

报告人简介:张启峰, 副教授. 2014年在华中科技大学获得理学博士学位,随后进入浙江理工大学担任专任教师至今. 2018-2021年从事在职博士后研究(合作导师:孙志忠教授) 2020-2021年在洛桑联邦理工学院访问. SIAM J. Sci. Comput., J. Sci. Comput., Calcolo, Adv. Comput. Math, J. Differential Equations等计算和应用数学期刊上发表学术论文50余篇,合著专著1部。当前主要研究兴趣包括非线性水波方程和分数阶微分方程的数值分析与数值模拟. 主持完成国家自然科学基金青年基金1项,博士后基金1项,浙江省自然科学基金重点项目1项。 

报告邀请人:刘可伋教授