Super Tau-Covers of Bihamiltonian Integrable Hierarchies
发布人: 曹思圆   发布时间: 2021-04-06   浏览次数: 37

*时间:2021年4月7日13:00-15:00

*地点:闵行校区统计楼125

*主讲人:张友金 教授 (清华大学)

*主持人:陈勇 教授 


*讲座内容简介:  

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,2018年获得教育部自然科学奖一等奖。