[Distinguished Lecture]Topological extension of Calabi invariants and its application
Time: 2015-11-10
Published By:
Speaker(s): Professor Yong-Geun Oh (Institute of Basic Sciences, Korea)
Time: 00:00-00:00 November 10, 2015
Venue: 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.
