[Distinguished Lecture]Topological extension of Calabi invariants and its application
发布时间：2015年11月10日
浏览次数：9591
发布者:
主讲人： Professor Yong-Geun Oh (Institute of Basic Sciences, Korea)
活动时间： 从 2015-11-10 00:00 到 00:00
场地： Room 77201, Yard 78, Beijing International Center for Mathematical Research
Speaker： Professor Yong-Geun Oh (Institute of Basic Sciences, Korea)
Time：Tuesday Nov. 10, 2015, 14:00--15:00.
Venue：Room 77201, Yard 78, Beijing International Center for Mathematical Research
Title：Topological extension of Calabi invariants and its application
Abstract：
In this talk, I will explain how we can extend the classical Calabi homomorphism on the area-preserving diffeomorphism group of two-disc to the group of Hamiltonian homeomorphisms. I will also mention implication of this extension result on the structure of area-preserving homeomorphism group of the two-disc.
Time：Tuesday Nov. 10, 2015, 14:00--15:00.
Venue：Room 77201, Yard 78, Beijing International Center for Mathematical Research
Title：Topological extension of Calabi invariants and its application
Abstract：
In this talk, I will explain how we can extend the classical Calabi homomorphism on the area-preserving diffeomorphism group of two-disc to the group of Hamiltonian homeomorphisms. I will also mention implication of this extension result on the structure of area-preserving homeomorphism group of the two-disc.
