Variational bihamiltonian cohomologies and integrable systems

  • 刘兰峰
  • 创建时间: 2023-12-10

题目: Variational bihamiltonian cohomologies and integrable systems

摘要: We introduce the notion of variational bihamiltonian cohomology to study properties of a class of integrable evolutionary PDEs which are related with semisimple Frobenius manifolds. We show the existence of Virasoro symmetries of such integrable systems by computing the associated variational bihamiltonian cohomology groups, and prove the polynomiality property of their bihamiltonian structures.

时间：2023年12月11日下午三点

地点：中关村数学院南楼106

报告人简介：张友金，清华大学数学科学系教授，研究领域为数学物理、可积系统理论。曾获得中国教育部自然科学奖一等奖，2000年获国家杰出青年基金，2007年度“长江学者”特聘教授。