Super Tau-Covers of Bihamiltonian Integrable Hierarchies
报告题目(Title):Super Tau-Covers of Bihamiltonian Integrable Hierarchies
报告人(Speaker):张友金 教授(清华大学)
地点(Place):腾讯会议ID: 453 850 0147
时间(Time):2021年7月7日(周三),15:00-16:00
邀请人(Inviter):王灯山
报告摘要
We consider a certain super extension, called the super tau-cover, of a bihamiltonian integrable hierarchy which contains the Hamiltonian structures including both the local and non-local ones as odd flows. In particular, we construct the super tau-cover of the principal hierarchy associated with an arbitrary Frobenius manifold, and the super tau-cover of the Korteweg-de Vries hierarchy. We also show that the Virasoro symmetries of these bihamiltonan integrable hierarchies can be extended to symmetries of the associated super tau-covers.
主讲人简介
张友金,清华大学数学科学系教授。主要从事数学物理和可积系统理论的研究,与合作者一起在非线性可积系统理论、Frobenius流形理论及其在Gromov-Witten不变量理论中的应用等方面作出了一系列重要的工作。于2000年获得国家杰出青年科学基金,2007年获聘教育部长江学者特聘教授,2018年获得教育部自然科学奖一等奖。