Orita Ryuma

オリタリュウマ | Orita Ryuma

Affiliation and department：
Job title： Assistant Professor
Homepage URL (2)： https://ryuma-orita.netlify.app/ja/ , https://ryuma-orita.netlify.app/

Research field (2)： Geometry , Geometry

Research keywords (6)： symplectic manifolds , Hamiltonian Dynamics , Morse Theory , Floer Theory , Persistence modules , Topological complexity

Research theme for competitive and other funds (4)：

2021 - 2026 Robot motion planning and symplectic geometry
2020 - 2022 Applications of periodic orbits in Hamiltonian dynamics and persistence modules
2018 - 2021 Research on applications of Floer theory and persistence modules
2014 - 2017 Morse理論の様々な応用に関する研究

Papers (8)：

Morimichi Kawasaki, Ryuma Orita. Rigid fibers of integrable systems on cotangent bundles. Journal of the Mathematical Society of Japan. 2021
Morimichi Kawasaki, Ryuma Orita. Existence of pseudoheavy fibers of moment maps. Communications in Contemporary Mathematics. 2020. 23. 05. 2050047-2050047
Ryuma Orita. On the existence of infinitely many non-contractible periodic orbits of Hamiltonian diffeomorphisms of closed symplectic manifolds. Journal of Symplectic Geometry. 2020. 17. 6. 1893-1927
Ryuma Orita. Disjoint superheavy subsets and fragmentation norms. Journal of Topology and Analysis. 2019. 13. 02. 443-468
Ryuma Orita. Application of fragmentation norms to transported points by Hamiltonian isotopies. RIMS Kôkyûroku. 2018. 2098

ｍore...

MISC (2)：

Kanta Koeda, Ryuma Orita, Kanon Yashiro. Floer-type bipersistence modules and rectangle barcodes. 2023
Ryuma Orita. Topological complexity of monotone symplectic manifolds. 2023

Books (1)：

Education (3)：

2014 - 2017 The University of Tokyo Graduate School of Mathematical Sciences Doctoral Course
2012 - 2014 The University of Tokyo Graduate School of Mathematical Sciences Master Course
2008 - 2012 Kyushu University School of Science Department of Mathematics

Professional career (1)：

Work history (6)：

2020/03 - 現在 Niigata University Faculty of Science Assistant Professor
2019/04 - 2020/02 Aoyama Gakuin University College of Science and Engineering Teaching Associate (adjunct)
2018/04 - 2020/02 Tokyo Metropolitan University Graduate School of Science JSPS Research Fellow (PD)
2017/08 - 2018/03 National Center for Theoretical Sciences (NCTS) Mathematics Division Postdoctoral Fellow
2017/04 - 2017/07 Kyushu University Institute of Mathematics for Industry Postdoctoral Researcher

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Association Membership(s) (1)：

The Mathematical Society of Japan

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