活动时间:2026-11-12 16:15-17:00
活动地点:2号学院楼2432会议室
主讲人:Frank Nijhoff
主讲人简介:
Frank W. Nijhoff,英国利兹大学数学学院荣休教授、博士生导师、洪堡学者、英国物理学会会士(Fellow of the Institute of Physics),曾任利兹大学应用数学系主任。Nijhoff教授长期从事连续与离散可积系统研究,是离散可积系统领域的国际知名学者,在直接线性化方法、多维相容性和拉格朗日多形式理论等方面作出了开创性贡献。Nijhoff教授曾主持多项英国EPSRC科研项目,获英国皇家学会—Leverhulme Trust高级研究员项目资助,长期担任离散可积系统国际系列会议SIDE(Symmetries and Integrability of Difference Equations)指导委员会主席,并曾任《Journal of Integrable Systems》主编。其研究成果发表于《Communications in Mathematical Physics》《International Mathematics Research Notices》《Proceedings of the Royal Society A》《Nonlinearity》等国际重要学术期刊。
内容摘要:
The modified KdV and modified Boussinesq systems will be presented in their different manifestations: fully discrete, fully continuous and semi-discrete. I will present their Lagrangian multiform structure and discuss their similarity reduction to (discrete and continous) Painleve VI equation and the (discrete and continuous) Garnier system (i.e. the Painleve VI hierarchy).
主持人:孙暄
