报告题目：Geometry of symbols of integrable PDEs
报 告 人：Evgeny Ferapontov（Loughborough University, UK；教授）
报告时间：2020年9月28日 21:00开始
报告地点：因zoom有40分钟限制，故设置两个连续的会议时间
zoom会议ID 1：933 6963 6441；Passcode: 7KS4Ui
或点击链接入会：//zoom.us/j/93369636441?pwd=QUF4ZzhXNzh4dkNWT2xRbXp2R3Ixdz09
zoom会议ID 2: 937 2634 2015；Passcode: 9jhKEd
或点击链接入会：//zoom.us/j/93726342015?pwd=RHVSMVhGcnpsL3QyQWtpNGhCOVVKQT09
报告摘要：Principal symbol of a second-order PDE defines a conformal structure on every solution. For integrable PDEs these conformal structures define `integrable geometries': Einstein-Weyl geometry in 3D and half-flat geometry in 4D. Examplesand definitions will be given in the talk.
