Colloquium

Colloquium
Action spectrum and filtered Floer cohomology for non-contractible periodic orbit of Hamiltonian system 薮義郎 5月18日(金) 15時30分 In this talk, I will introduce and explain action spectrum and filtered Floer cohomology as a study of the existance of non-contractible one-periodic orbits of Hamiltonian systems. In particular, it will be shown that these notions depend on elements of the universal covering space of the Hamiltonian diffeomorphism group.

Action spectrum and filtered Floer cohomology for
non-contractible periodic orbit of Hamiltonian system

薮義郎

5月18日(金) 15時30分

In this talk, I will introduce and explain action spectrum and filtered Floer cohomology as a study of the existance of non-contractible one-periodic orbits of Hamiltonian systems. In particular, it will be shown that these notions depend on elements of the universal covering space of the Hamiltonian diffeomorphism group.