Updated on 2024/04/18

写真b

 
ENOKIZONO Makoto
 
*Items subject to periodic update by Rikkyo University (The rest are reprinted from information registered on researchmap.)
Affiliation*
College of Science Department of Mathematics
Title*
Assistant Professor
Degree
博士(理学) ( 大阪大学 )
Research Interests
  • 代数幾何学

  • Campus Career*
    • 4 2023 - Present 
      College of Science   Department of Mathematics   Assistant Professor
     

    Research Areas

    • Natural Science / Algebra

    Research History

    • 4 2023 - Present 
      Rikkyo University   Department of Mathematics, College of Science   Assistant Professor

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    • 4 2019 - 3 2023 
      Tokyo University of Science   Faculty of Science and Technology

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    • 4 2017 - 3 2019 
      日本学術振興会   特別研究員   PD(大阪大学)

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    • 4 2016 - 3 2017 
      日本学術振興会   特別研究員   DC1(大阪大学)

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    Education

    • 4 2016 - 3 2017 
      大阪大学大学院   理学研究科   数学専攻(博士課程)

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    • 4 2014 - 3 2016 
      大阪大学大学院   理学研究科   数学専攻(修士課程)

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    • 4 2010 - 3 2014 
      Osaka University   School of Science   Department of Mathematics

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    Awards

    • 3 2014  
      大阪大学  楠本賞 
       
      榎園 誠

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    Papers

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    Misc.

    • Minimal model program for log canonical pairs on complex analytic spaces

      Makoto Enokizono, Kenta Hashizume

      preprint arXiv:2404.05126.   4 2024

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    • Semistable reduction for complex analytic spaces

      Makoto Enokizono, Kenta Hashizume

      preprint arXiv:2404.05124.   4 2024

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    • Slope inequality of fibered surfaces, Morsification conjecture and moduli of curves

      Makoto Enokizono

      preprint arXiv:2307.04311.   2023

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    • An integral version of Zariski decompositions on normal surfaces

      Enokizono Makoto

      preprint arXiv:2007.06519   2020

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    • Uniform bases for ideal arrangements

      Enokizono Makoto, Tatsuya Horiguchi, Takahiro Nagaoka, Akiyoshi Tsuchiya

      preprint arXiv:1912.02448   2019

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    • Strange examples of local signatures for fibered surfaces of small genus

      Enokizono Makoto

      preprint arXiv:1704.08805   2017

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    Presentations

    • An additive basis for the cohomology rings of regular nilpotent Hessenberg varieties

      榎園 誠

      日本数学会2020年度秋季総合分科会 

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    • Slope inequality of fibered surfaces, Morsification conjecture and Moduli of curves Invited

      Makoto Enokizono

      17 2 2024 

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    • Global and local invariants of fibered surfaces Invited

      27 12 2023 

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    • Slope inequality of fibered surfaces, Morsification conjecture and Moduli of curves Invited

      Makoto Enokizono

      Niigata Algebra Simposium  7 12 2023 

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    • Slope inequality of fibered surfaces and moduli of curves Invited

      29 8 2023 

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    • Modular invariants of fibered surfaces Invited

      Makoto Enokizono

      11 6 2023 

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    • Slope inequality of fibered surfaces and moduli of curves Invited

      Makoto Enokizono

      Various aspects of singularities  30 3 2023 

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    • Slope inequality of fibered surfaces and moduli of curves Invited

      Makoto Enokizono

      23 2 2023 

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    • 代数曲面上の曲線からの射の拡張定理 Invited

      Enokizono Makoto

      25 3 2022 

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    • On vanishing theorems for normal surfaces in positive characteristic Invited

      Makoto Enokizono

      12 10 2021 

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    • Adjoint linear systems on normal surfaces

      Makoto Enokizono

      6 8 2021 

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    • Vanishing theorems and adjoint linear systems on normal surfaces in positive characteristic Invited

      Makoto Enokizono

      28 6 2021 

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    • Vanishing theorem on normal surfaces in positive characteristic Invited

      Makoto Enokizono

      10 5 2021 

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    • Extension theorem of morphisms from divisors on normal surfaces Invited

      Makoto Enokizono

      Degenerations and models of algebraic varieties and related topics  17 2 2021 

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    • Integral Zariski decomposition on normal surfaces and its applications Invited

      Kinosaki algebraic geometry symposium 2020  21 10 2020 

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    • Uniform bases for ideal arrangements

      榎園 誠

      日本数学会2020年度秋季総合分科会  23 9 2020 

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    • An integral version of Zariski decompositions on normal surfaces Invited

      榎園 誠

      第22回代数曲面ワークショップZoom  10 9 2020 

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      Presentation type:Oral presentation (invited, special)  

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      20 1 2020 

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      Event date: 20 1 2020 - 20 1 2020

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    • On local invariants for fibered surfaces Invited

      Enokizono Makoto

      14 12 2019 

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      Event date: 14 12 2019 - 15 12 2019

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    • Uniform bases for ideal arrangements Invited

      Enokizono Makoto

      6 11 2019 

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      Event date: 6 11 2019 - 8 11 2019

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      29 8 2019 

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      Event date: 27 8 2019 - 30 8 2019

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      7 8 2019 

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      Event date: 5 8 2019 - 8 8 2019

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    • Slope inequality for fibered surfaces and Durfee's conjecture for surface singularities Invited

      Enokizono Makoto

      20 7 2019 

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      Event date: 20 7 2019 - 20 7 2019

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      5 7 2019 

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      Event date: 5 7 2019 - 5 7 2019

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    • On local signatures for holomorphic fibrations Invited International conference

      Enokizono Makoto

      Lefschetz Pencils and Low dimensional Topology  31 5 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope inequality for fibered surfaces and Durfee's conjecture for surface singularities Invited International conference

      Enokizono Makoto

      Branched Coverings, Degenerations, and Related Topics 2019  7 3 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • The cohomology rings of regular nilpotent Hessenberg varieties Invited

      Enokizono Makoto

      1 3 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • 正則な冪零ヘッセンバーグ多様体のコホモロジー環について Invited

      榎園 誠

      第29回大和郡山セミナー  28 2 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • 正則な冪零ヘッセンバーグ多様体のコホモロジー環について

      榎園 誠

      第24回代数学若手研究会  18 2 2019 

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      Presentation type:Oral presentation (general)  

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    • Durfee-type inequality for comlete intersection surface singularities Invited International conference

      Enokizono Makoto

      14 2 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope inequality for fibered surfaces and Durfee's conjecture for surface singularities Invited

      Enokizono Makoto

      13 1 2019 

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      Presentation type:Oral presentation (invited, special)  

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      15 6 2018 

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      Presentation type:Oral presentation (invited, special)  

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    • Durfee-type inequality for complete intersection surface singularities Invited

      Enokizono Makoto

      8 6 2018 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope equality of plane curve fibrations

      Enokizono Makoto

      2 3 2018 

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      Presentation type:Oral presentation (general)  

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    • Slope inequality for fibered surfaces and Durfee's conjecture for surface singularities

      Enokizono Makoto

      23 2 2018 

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      Presentation type:Oral presentation (general)  

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    • Slope equality of plane curve fibrations and its applications to Durfee's conjecture Invited

      Enokizono Makoto

      23 12 2017 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope equality of plane curve fibrations Invited

      Enokizono Makoto

      16 12 2017 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope equality of plane curve fibrations Invited International conference

      Enokizono Makoto

      Algebraic curves, Algebraic surfaces and Applications  9 12 2017 

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      Presentation type:Oral presentation (invited, special)  

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    • Slope equality of plane curve fibrations Invited

      Enokizono Makoto

      4 11 2017 

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      Presentation type:Oral presentation (invited, special)  

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    • 2次元超曲面特異点に対するダーフィー型の不等式

      榎園 誠

      日本数学会2017年度秋季総合分科会  14 9 2017 

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      Presentation type:Oral presentation (general)  

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    • 平面曲線束のスロープ等式

      榎園 誠

      日本数学会2017年度秋季総合分科会  14 9 2017 

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      Presentation type:Oral presentation (general)  

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    • Slope equality of plane curve fibrations Invited

      Enokizono Makoto

      2 9 2017 

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      Presentation type:Oral presentation (invited, special)  

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    • ある種のファイバー曲面のスロープ上限について

      榎園 誠

      日本数学会2017年度年会  26 3 2017 

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      Presentation type:Oral presentation (general)  

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    • ファイバー曲面のスロープ上限について Invited

      榎園 誠

      数理情報科学談話会  23 12 2016 

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      Presentation type:Oral presentation (invited, special)  

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    • Upper bounds on the slope of certain fibered surfaces Invited International conference

      Enokizono Makoto

      Kinosaki algebraic geometry symposium 2016  19 10 2016 

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      Presentation type:Oral presentation (invited, special)  

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    • Upper bounds on the slope of certain fibered surfaces Invited International conference

      Enokizono Makoto

      6 9 2016 

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      Presentation type:Oral presentation (invited, special)  

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    • On the structure of hyperelliptic quasi-bundles Invited International conference

      Enokizono Makoto

      Branched Coverings, Degenerations, and Related Topics 2016  9 3 2016 

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      Presentation type:Oral presentation (invited, special)  

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    • 有限位数の巡回同型を持つファイバー曲面のスロープについて

      榎園 誠

      第13回城崎新人セミナー  16 2 2016 

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      Presentation type:Oral presentation (general)  

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    • Fibers of cyclic covering fibrations of a ruled surface Invited

      Enokizono Makoto

      10 1 2016 

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      Presentation type:Oral presentation (invited, special)  

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    • 有限位数の巡回同型を持つファイバー曲面のスロープについて Invited

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      特異点と多様体の幾何学  24 9 2015 

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      Presentation type:Oral presentation (invited, special)  

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    • 有限巡回同型を持つファイバー曲面のスロープについて

      榎園 誠

      日本数学会2015年度秋季総合分科会  14 9 2015 

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      Presentation type:Oral presentation (general)  

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    • 線織面の巡回被覆で得られるファイバー曲面の特異ファイバーについて Invited

      榎園 誠

      第10回代数曲面ワークショップ at 秋葉原  18 7 2015 

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      Presentation type:Oral presentation (invited, special)  

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    • Slopes of fibered surfaces with a finite cyclic automorphism

      Enokizono Makoto

      22 5 2015 

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      Presentation type:Oral presentation (general)  

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    Professional Memberships

    •  
      THE MATHEMATICAL SOCIETY OF JAPAN

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    Research Projects

    • 二重被覆の手法を用いた一般型3次元多様体の地誌学的研究

      日本学術振興会  科学研究費助成事業 若手研究 

      榎園 誠

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      4 2020 - 3 2024

      Grant number:20K14297

      Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

      当該年度は、主に正標数の代数曲面に対する川又-Viehweg型の消滅定理を示し、そのいくつかの応用を与えた。以下に具体的な内容を記す。
      代数多様体のコホモロジーに対する消滅定理は、代数幾何学において基本的な道具である。しかしながら正標数においては、標数0で成立する小平消滅定理や川又-Viehweg消滅定理は曲面の場合ですら成立しない。本研究では、正標数の代数曲面とその上の広いクラスの因子に対して、川又-Viehweg消滅定理が成立することを示した。この応用として、随伴線形系に対するReider型の定理やSerranoによる射の拡張定理が、特異点を許した正標数の代数曲面でもある程度成立することを示した。これらの具体的な応用として、任意の体上定義された平面曲線の非特異な有理点をその曲線上の有理関数の情報により特徴づけることに成功した。

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    • 完全交叉特異点のDurfee型不等式に関する研究

      日本学術振興会  科学研究費助成事業 研究活動スタート支援 

      榎園 誠

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      8 2019 - 3 2021

      Grant number:19K23407

      Grant amount:\2860000 ( Direct Cost: \2200000 、 Indirect Cost:\660000 )

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    • ファイバー曲面におけるスロープ不等式の研究

      日本学術振興会  特別研究員奨励費(DC1) 

      榎園 誠

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      4 2016 - 3 2019

      Authorship:Principal investigator  Grant type:Competitive

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