## Staff -IRIE, Kei-

Name

**IRIE, Kei**
Position
Assistant Professor

E-Mail
iriek (email address: add @kurims.kyoto-u.ac.jp)

URL

Research

Kei Irie is working on symplectic geometry and topology, in particular Floer theory and its applications to the study of periodic orbits of Hamiltonian systems.
He applied symplectic homology theory to billiard problems and to estimates of the Hofer-Zehnder capacity.

Recently, he proved a $C^\infty$-closing lemma for three-dimensional Reeb flows as an application of embedded contact homology theory.

He is also working on string topology, in particular on foundational aspects, which is strongly related to Floer theory on cotangent bundles.

Recently, he proved a $C^\infty$-closing lemma for three-dimensional Reeb flows as an application of embedded contact homology theory.

He is also working on string topology, in particular on foundational aspects, which is strongly related to Floer theory on cotangent bundles.