Yasui Kouichi

Affiliation and department：
Other affiliations (1)：

Research field (1)： Geometry

Research keywords (3)： topology , 4-manifolds , smooth structures

Research theme for competitive and other funds (12)：

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Papers (22)：

Tsuyoshi Kato, Nobuhiro Nakamura, Kouichi Yasui. The simple type conjecture for mod 2 Seiberg-Witten invariants. Journal of the European Mathematical Society. 2023. 25. 12. 4869-4877
安井弘一. 4次元多様体の微分構造と種数関数. 日本数学会 2023 年度秋季総合分科会トポロジー分科会講演アブストラクト. 2023. 73-82
Kouichi Yasui. Geometrically simply connected 4-manifolds and stable cohomotopy Seiberg-Witten invariants. Geometry & Topology. 2019. 23. 5. 2685-2697
Kouichi Yasui. Nonexistence of twists and surgeries generating exotic 4-manifolds. Transactions of the American Mathematical Society. 2019. 372. 8. 5375-5392
Kouichi Yasui. On twists and surgeries generating exotic smooth structures. Intelligence of Low-dimensional Topology. RIMS Kokyuroku. 2018. 2099. 30-35

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MISC (5)：

Tsuyoshi Kato, Daisuke Kishimoto, Nobuhiro Nakamura, Kouichi Yasui. Upper bounds for virtual dimensions of Seiberg-Witten moduli spaces. arXiv:2111.15201. 2021
Kouichi Yasui. Contact 5-manifolds and smooth structures on Stein 4-manifolds. arXiv:1604.03460. 2016
Kouichi Yasui. Corks, exotic 4-manifolds and knot concordance. arXiv:1505.02551 (accepted for publication in Journal of Differential Geometry). 2015
Kouichi Yasui. Partial twists and exotic Stein fillings. arXiv:1406.0050. 2014
Kouichi Yasui. Nuclei and exotic 4-manifolds. arXiv:1111.0620. 2011

Lectures and oral presentations (102)：

Genus functions of 4-manifolds and their applications
(Topology and Geometry of Low-Dimensional Manifolds 2024 2024)
4-manifolds and genera of surfaces
(2024)
Genus functions of 4-manifolds and their applications
(Differential Topology ’24 Cork, exotic structure, concordance 2024)
Exotic 4-manifolds and genus functions”,
(Four Dimensional Topology 2023)
4次元多様体の微分構造と種数関数
(日本数学会 2023 年度秋季総合分科会(特別講演) 2023)

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Education (1)：

2006 - 2008 Osaka University Graduate School of Science Doctoral Course, Department of Mathematics

Professional career (1)：

Work history (6)：

2017/04 - 現在 Department of Pure and Applied Mathematics, Graduate School of Information Science and Technology, Osaka University Associate Professor
2011/04 - 2017/03 Department of Mathematics, Graduate School of Science, Hiroshima University Assistant Professor
2010/04 - 2011/03 Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists (PD)
2009/04 - 2010/03 Research Institute for Mathematical Sciences, Kyoto University GCOE Program-Specific Research Fellow
2009/01 - 2009/03 Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists (PD)

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Committee career (16)：

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Awards (2)：

2017/12 - The International Consortium of Chinese Mathematicians Distinguished Paper Award of 2017 ICCM Best Paper Award "Calabi-Yau caps, uniruled caps and symplectic fillings"
2009/09 - The Mathematical Society of Japan The MSJ Takebe Katahiro Prize for Encouragement of Young Researchers Researches on handle decompositions of 4-manifolds

Association Membership(s) (1)：

THE MATHEMATICAL SOCIETY OF JAPAN

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