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Affiliation |
Faculty of Environment and Information Sciences, Division of Social Environment and Information |
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Job Title |
Professor |
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Research Fields, Keywords |
Algebraic geometry |
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Mail Address |
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HARASHITA Shushi
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The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 The existence of supersingular curves of genus 4 in arbitrary characteristic(Research in Number Theory) 2020.10
【Published Thesis】 On the affineness of distinguished Deligne-Lusztig varieties(Journal of Algebra) 2013.09
【Published Thesis】 Generic Newton polygons of Ekedahl-Oort strata: Oort's conjecture(Annales de l'Institut Fourier) 2010
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 The cycle class of the supersingular locus of principally polarized abelian varieties(Selecta Mathematica) 2025.10
【Published Thesis】 The multiplicity-one theorem for the superspeciality of curves of genus two(Finite Fields and Their Applications) 2026.02
【Published Thesis】 Representation of non-special curves of genus 5 as plane sextic curves and its application to finding curves with many rational points(Journal of Symbolic Computation) 2024
【Published Thesis】 Differential forms on the curves associated to Appell-Lauricella hypergeometric series and the Cartier operator on them(Yokohama Mathematical Journal) 2023.12
Education 【 display / non-display 】
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-2003.3
The University of Tokyo Doctor Course Completed
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-1998.3
The University of Tokyo Graduated
Degree 【 display / non-display 】
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Doctor of Mathematical Sciences - The University of Tokyo
Campus Career 【 display / non-display 】
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2022.4
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Social Environment and Information Professor
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2010.4-2022.3
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Social Environment and Information Associate Professor
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2021.4-2022.3
Concurrently Yokohama National UniversityInterfaculty Graduate School of Innovative and Practical Studies Associate Professor
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2018.4-2022.3
Concurrently Yokohama National UniversityGraduate School of Environment and Information Sciences Department of Information Environment Associate Professor
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2011.4-2022.3
Concurrently Yokohama National UniversityCollege of Engineering Science Department of Mathematics, Physics, Electrical Engineering and Computer Science Associate Professor
External Career 【 display / non-display 】
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2009.10-2010.3
Graduate School of Science, Kobe University Department of Mathematics Assistant Professor
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2008.4-2009.9
The University of Tokyo Institute for the Physics and Mathematics of the Universe Post Doctoral Researcher
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2005.4-2008.3
Research Fellow of the Japan Society for the Promotion of Science (PD) Special researcher of the Japan Society for the Promotion of Science
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2004.4-2005.3
The University of Tokyo Graduate School of Mathematical Sciences COE Researcher
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2003.4-2004.3
Research Fellow of the Japan Society for the Promotion of Science (PD) Special researcher of the Japan Society for the Promotion of Science
Academic Society Affiliations 【 display / non-display 】
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2007.4
The Mathematical Society of Japan
Papers 【 display / non-display 】
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The multiplicity-one theorem for the superspeciality of curves of genus two
Shushi Harashita, Yuya Yamamoto
Finite Fields and Their Applications 110 ( 102738 ) 2026.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://doi.org/10.1016/j.ffa.2025.102738
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The cycle class of the supersingular locus of principally polarized abelian varieties
Gerard van der Geer, Shushi Harashita
Selecta Mathematica 31 ( 95 ) 2025.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://link.springer.com/article/10.1007/s00029-025-01095-w
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Momonari Kudo and Shushi Harashita
Commentarii Mathematici Universitatis Sancti Pauli 72 ( 1 ) 57 - 81 2024.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://rikkyo.repo.nii.ac.jp/records/2001116
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The a-numbers of non-hyperelliptic curves of genus 3 with cyclic automorphism group of order 6
Ryo Ohashi, Momonari Kudo, Shushi Harashita
Acta Arithmetica 216 ( 3 ) 227 - 248 2024.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Momonari Kudo and Shushi Harashita
Journal of Symbolic Computation 122 2024 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://doi.org/10.1016/j.jsc.2023.102272
Works 【 display / non-display 】
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微分積分学概論
茨木貴徳、牛越惠理佳、竹居正登、原下秀士
2022.2
Work type：Educational material Location：培風館
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理工系 微分方程式 解き方から基礎理論への入門
宇佐美広介、齋藤保久、原下秀士、眞中裕子、和田出秀光
2017.5
Work type：Educational material Location：培風館
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実例詳説 線形代数
宇佐美広介、亀山 敦、佐藤健治、澤田宙広、原下秀士、宮島信也
2015.2
Work type：Educational material Location：培風館
Grant-in-Aid for Scientific Research 【 display / non-display 】
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アーベル多様体や曲線のモジュライ空間の階層構造の研究
Grant number：21K03159 2021.4 - 2025.3
Grant-in-Aid for Scientific Research(C)
Authorship：Principal investigator
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アーベル多様体のモジュライ空間や曲線のモジュライ空間の階層構造の研究
Grant number：17K05196 2017.4 - 2021.3
Grant-in-Aid for Scientific Research(C)
Authorship：Principal investigator
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アーベル多様体のモジュライ空間に入る階層構造と葉層構造の研究
Grant number：25800008 2013.4 - 2017.3
Grant-in-Aid for Young Scientists(B)
Authorship：Principal investigator
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アーベル多様体のモジュライ空間の階層構造及び葉層構造の研究
Grant number：21740006 2009.4 - 2012.3
Grant-in-Aid for Young Scientists(B)
Authorship：Principal investigator
Presentations 【 display / non-display 】
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Superspecial genus-4 double covers of elliptic curves
原下 秀士 [Invited]
第22回代数曲線論シンポジウム 2024.12 春井岳, 高橋剛, 真瀬真樹子, 三浦敬, 渡邉健太
Event date： 2024.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京都立大学 Country：Japan
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Introduction to supersingular abelian varieties and supersingular curves
Shushi Harashita [Invited]
Theory and Applications of Supersingular Curves and Supersingular Abelian Varieties II 2024.11 Shushi Harashita, Momonari Kudo, Hiroshi Onuki
Event date： 2024.11
Language：English Presentation type：Oral presentation (general)
Venue：Research Institute for Mathematical Sciences, Kyoto University Country：Japan
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楕円曲線の二重被覆曲線として得られる種数４の超特別曲線
小笠原匠、原下秀士、大橋亮、坂田康亮
日本数学会２０２４年度年会 2024.3 日本数学会
Event date： 2024.3
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪公立大学 杉本キャンパス
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The multiplicity-one theorem for the superspeciality of curves of genus two
山本侑也、原下秀士
日本数学会２０２４年度年会 2024.3 日本数学会
Event date： 2024.3
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪公立大学 杉本キャンパス
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Shushi Harashita
L-functions and Motives in Niseko 2022.9 Masanori Asakura, Noriyuki Otsubo, Seidai Yasuda
Event date： 2022.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：Hilton Niseko Village, Hokkaido Japan
Charge of on-campus class subject 【 display / non-display 】
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2025 Algebraic Geometry Ⅱ
Interfaculty Graduate School of Innovative and Practical Studies
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2025 Algebraic Geometry Ⅰ
Interfaculty Graduate School of Innovative and Practical Studies
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2025 Advanced algebra Ⅱ
Interfaculty Graduate School of Innovative and Practical Studies
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2025 Advanced algebra Ⅰ
Interfaculty Graduate School of Innovative and Practical Studies
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2025 Advanced Information mathematics Ⅱ
Interfaculty Graduate School of Innovative and Practical Studies
Academic Activities 【 display / non-display 】
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Theory and Applications of Supersingular Curves and Supersingular Abelian Varieties
Role(s)： Planning, management, etc.
Shushi Harashita, Momonari Kudo and Katsuyuki Takashima 2020.10
Type：Academic society, research group, etc.