HARA Nobuo 原伸生

Researcher Number	90298167
Other IDs
External Links
Affiliation (Current)	2025: 東京農工大学, 工学(系)研究科(研究院), 教授
Affiliation (based on the past Project Information) *help	2013 – 2023: 東京農工大学, 工学(系)研究科(研究院), 教授 2013: 東京農工大学, 工学研究院, 教授 2012: 東北大学, 理学(系)研究科(研究院), 准教授 2007 – 2012: Tohoku University, 大学院・理学研究科, 准教授 2006: Tohoku University, Graduate School of Science, Associate Professor, 大学院理学研究科, 助教授 … More 2002 – 2005: Mathematical Institute of Tohoku University Associate Professor, 大学院・理学研究科, 助教授 2000 – 2002: 東北大学, 大学院・理学研究科, 講師 1998 – 1999: 早稲田大学, 理工学部, 助手 Less
Review Section/Research Field	Principal Investigator Algebra / Algebra / Basic Section 11010:Algebra-related Except Principal Investigator Algebra / Algebra
Keywords	Principal Investigator 正標数 / 代数幾何 / 特異点 / フロベニウス写像 / F-特異点 / multiplier ideal / フロベニウス直像 / ベクトル束 / tight closure / Frobenius直像 … More / del Pezzo曲面 / del Pezzo 曲面 / 有限F-表現型（FFRT） / 有限F表現型（FFRT） / algebraic geometry / F-singularity / 乗数イデアル / 判定イデアル / 密着閉包 / 大域的F正則 / F爆発 / 随伴束 / F-爆発 / 代数多様体 / フロベニウス射 / F-純閾値 / 可換環論 / F-正則 / test ideal / F-有理(F-rational) / F-正則(F-regular) / 反標準束 / 反標準束（反標準環） / 代数的スタック / 2次元特異点 / 有限F表現型 / F-符号数 / 5次del Pezzo曲面 / 有限F表現型(FFRT) / 反標準環 / デルペッツォ曲面 / ファノ多様体 / 2次元正規次数環 / multiplicity / tropical geometry / toric variety / F-pure threshold / P-フラクタル / Buchsbaum斉次代数 / トロピカル・トーリック多様体 / CCI曲面 / 対数的標準閾値 / 重複度 / トロピカル幾何 / トーリック多様体 / Rees algebra / commutative algebra / positive characteristic / Tight closure / 記号的ベキ乗 / Subadditivity / 密着閉包(I-密着閉包) / Rees環 / 代数幾何学 / 大域的有限F表現型 / 大域的F有限型 / 平坦化 / Fサンドイッチ / F正則 / 単純楕円型特異点 / F-サンドイッチ / 純非分離射 / F-分裂次元 / 代数曲面 / F-純特異点の最小中心 / 対数的標準閾特異点 / 組の特異点 / 半安定性 / 擬斉次 / Hilbert-Kunz重複度 / Q-Gorenstein性 / F-正則性 / F-跳躍数 / 対数的標準特異点 / 組(pair) / 対数的端末特異点 / F-純(F-pure) … More Except Principal Investigator トーリック多様体 / tight closure / 代数幾何学 / multiplier ideal / 楕円曲線 / 有理特異点 / 特異点 / totally reflexive module / F-rational ring / F-threshold / Frobenius endomorphism / F-regular ring / Hilbert-Kunz重複度 / 整閉イデアル / F-pure threshold / log terminal singularity / Frobenius写像 / Hilbert-Kunz multiplicity / F-pure / lc threshold / toric variety / アーベル多様体 / 量子群 / 概均質ベクトル空間 / 密度定理 / 代数幾何 / 代数群 / モチーフ / 代数多様体 / 凸多面体 / 扇 / multiplicity / integral closure / rational singularity / F-正則対 / jumping number / jumping coefficient / 標数p>0の手法 / 乗数イデアル / 重複度 / totally reflexive加群 / 整閉包 / F-有理環 / algebraic geometry / convex polytope / トロピカル幾何 / 孤立特異点 / Frobenius / Motif / Algebraic cycles / Toric Variety / Prehomogeneous vector spaces / 対数的代数幾何 / 密着閉包 / test ideal / 対数アーベル多様体 / フロベニウス写像 / 代数的サイクル / regular local ring / F-pure ring / 商特異点 / blowing up / terminal singularity / regular ring / subadditivity / 特異点の解消 / 素元分解環 / 全座標環 / 可換環論 / Chow群 / Seifelt手術 / UFD / log resolution / 正則局所環 / thight closure / fan / Rees alebra / blowup / elliptic curve / abelian variety / algebraic variety / 端末特異点 / 交叉コホモロジー群 / 双対化定理 / K3曲面 / 強レフシェッツ定理 / 楕円曲面 / 可換環 / リース環 / ブローアップ / Mordell-Weil group / elliptic curves / F-singularities / Q-curves / toric varieties / density theorems / class number / キーワード8 / キーワード7 / キーワード6 / 不定方程式 / 既均質ベクトル空間 / 可積分系 / 密着閉方 / F-特異点 / Q-曲線 / 類数 / Secant variety / Freudenthal varieties / Contact type gradtion / Symplectic triple systems / Adjoint varieties / Algebraic geometry / Vector bundles / Polarized varieties / secant多様体 / ガウス射 / ample vector bundle / fight・closure / 階数別Lie代数 / 等質射影多様体 / イニシャルイデアル / 定義方程式 / フロベニウス射 / symplectic3項系 / 階数別リー代数 / 射影多様体 / 射影幾何学 / symplectic triple systems / 複素単純リー代数 / 射影代数幾何 / symplectic triple system / 等質性 / 割線多様体 / Freudenthal多様体 / 接触型階数分解 / sumplectic triple system / 随伴多様体 / ベクトル束 / 偏極多様体 / ミンコフスキー和 / 幾何学 / 代数学 / 凸体 / ファノ多様体 / 代数多様本 / モティーフ / トーリック / 循環商特異点 Less

Algebro-geometric study of iterated Frobenius direct images on del Pezzo surfaces in positive characteristicPrincipal Investigator
- Principal Investigator
  
  原伸生
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11010:Algebra-related
- Research Institution
  Tokyo University of Agriculture and Technology
Global F-regularity, Fano variety and the finiteness of Frobenius direct imagesPrincipal Investigator
- Principal Investigator
  
  Hara Nobuo
- Project Period (FY)
  2016 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tokyo University of Agriculture and Technology
Research on the structure of the Frobenius push-forwards on algebraic varieties and singularities in positive characteristicPrincipal Investigator
- Principal Investigator
  
  Hara Nobuo
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tokyo University of Agriculture and Technology
Study on Minkowski sums of lattice polytoped and toric varieties
- Principal Investigator
  
  OGATA Shoetsu
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Aspects of purely inseparable morphisms in algebraic geometryPrincipal Investigator
- Principal Investigator
  
  HARA Nobuo
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Extensions and applications of the theory of toric varieties
- Principal Investigator
  
  ISHIDA Masanori
- Project Period (FY)
  2007 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Study on equivariant mapps of toric varieties and vector bundles
- Principal Investigator
  
  OGATA Shoetsu
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Algebro-Geometric Approach to Invariants in Commutative AlgebraPrincipal Investigator
- Principal Investigator
  
  HARA Nobuo
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Singurality Theory and Frobenius Morphism
- Principal Investigator
  
  WATANABE Keiichi
- Project Period (FY)
  2005 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Nihon University
Study on integral convex polytopes and toric varieties
- Principal Investigator
  
  OGATA Shoetsu
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Applications of tight closure and F-singularity to algebraic geometryPrincipal Investigator
- Principal Investigator
  
  HARA Nobuo
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Number Theory and Geometry related to Algebraic Groups
- Principal Investigator
  
  YUKIE Akihiko
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Commutative ring theory and singularity theory
- Principal Investigator
  
  WATANABE Keiichi
- Project Period (FY)
  2001 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Algebra
- Research Institution
  Nihon University
Algebro-Geometric Method in Commutative AlgebraPrincipal Investigator
- Principal Investigator
  
  HARA Nobuo
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Number Theory and Geometry related to Algebraic Groups
- Principal Investigator
  
  YUKIE Akihiko
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
Research on duality theorems of modules on fans
- Principal Investigator
  
  ISHIDA Masanori
- Project Period (FY)
  2000 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
正標数の手法の特異点論と消滅定理への応用Principal Investigator
- Principal Investigator
  
  原伸生
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  Algebra
- Research Institution
  Tohoku University
  Waseda University
Research on homogeneous projective varieties by Lie algebra and algebraic geometry
- Principal Investigator
  
  YASUKURA Osami, 楫元
- Project Period (FY)
  1998 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Fukui University
  Waseda University

[Book] 代数曲線入門---はじめての代数幾何2004
- Author(s)
  梶原健
- Publisher
  日本評論社
- Data Source
  KAKENHI-PROJECT-15340001
[Book] 代数曲線入門-はじめての代数幾何2004
- Author(s)
  梶原健
- Total Pages
  323
- Publisher
  日本評論社
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540005
[Book] 代数曲線入門-はじめての代数幾何2004
- Author(s)
  梶原健
- Total Pages
  323
- Publisher
  日本評論社
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Book] 代数曲線入門-はじめての代数幾何-2004
- Author(s)
  梶原健
- Total Pages
  336
- Publisher
  日本評論社
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340001
[Journal Article] The FFRT property of two-dimensional normal graded rings and orbifold curves2020
- Author(s)
  Hara Nobuo、Ohkawa Ryo
- Journal Title
  
  Advances in Mathematics
  
  Volume: 370 Pages: 107215-107215
- DOI
  10.1016/j.aim.2020.107215
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K05092
[Journal Article] Structure of the F-blowups of simple elliptic singularities2015
- Author(s)
  N. Hara
- Journal Title
  
  J. Math. Sci. Univ. Tokyo
  
  Volume: 22 Pages: 193-218
- NAID
  120006906130
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25400035
[Journal Article] Looking out for Frobenius summands on a blown-up surface of P^22015
- Author(s)
  N. Hara
- Journal Title
  
  Illinois J. Math.
  
  Volume: 59 Pages: 115-142
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25400035
[Journal Article] F- blowups of normal surface singular- ities2013
- Author(s)
  N. Hara, T. Sawada and T. Yasuda
- Journal Title
  
  Algebra & Number Theory
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-blowups of normal surface singularities2013
- Author(s)
  N. Hara, T. Sawada, T. Yasuda
- Journal Title
  
  Algebra Number Theory
  
  Volume: 7 Issue: 3 Pages: 733-763
- DOI
  10.2140/ant.2013.7.733
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25400035
[Journal Article] F-bolowups of F-regular surface singularities2012
- Author(s)
  N. Hara
- Journal Title
  
  Proc. Amer. Math. Soc.
  
  Volume: 140 Pages: 2215-2216
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-blowups of F-regular surface Singularities, Proc2012
- Author(s)
  N. Hara
- Journal Title
  
  Amer. Math. Soc
  
  Volume: 140 Pages: 2215-2226
- URL
  http://dx.doi.org/10.1090/S0002-9939-2011-11074-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-blowups of F-regular surfiace singularities2012
- Author(s)
  N.Hara
- Journal Title
  
  Proc.Amer.Math.Soc.
  
  Volume: (未定)(掲載確定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-blowups of F-regular surface singularities2012
- Author(s)
  原伸生
- Journal Title
  
  Proc. Amer. Math. Soc
  
  Volume: 140 Pages: 2215-2216
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540038
[Journal Article] Splitting of Frobenius sandwiches2011
- Author(s)
  N. Hara and T. Sawada
- Journal Title
  
  in Higher dimensional Algebraic Geometry (editors: S. Mukai and N. Nakayama), RIMS kokyuroku Bessatsu
  
  Volume: B24 Pages: 121-141
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] Splitting of Frobenius sandwiches2011
- Author(s)
  N.Hara, T.Sawada
- Journal Title
  
  RIMS Kokyuroku Bessatsu
  
  Volume: B24 Pages: 121-141
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two2006
- Author(s)
  N.Hara (Appendix by P.Monsky)
- Journal Title
  
  Mathematical Research Letters 13
  
  Pages: 747-760
- Data Source
  KAKENHI-PROJECT-18540007
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two2006
- Author(s)
  原伸生
- Journal Title
  
  Mathematical Research Letter 13
  
  Pages: 747-760
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two, with an appendix by Paul Monsky2006
- Author(s)
  N. Hara
- Journal Title
  
  Mathematical Research Letters 13
  
  Pages: 747-760
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540007
[Journal Article] Abelian surfaces in projective 4-folds2006
- Author(s)
  梶原健
- Journal Title
  
  Archiv der Mathematik 86
  
  Pages: 43-49
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two2006
- Author(s)
  原伸生
- Journal Title
  
  Mathematical Research letter 13
  
  Pages: 747-760
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two, with an appendix by P. Monsky,2006
- Author(s)
  N.Hara
- Journal Title
  
  Mathematcal Research Letters 13
  
  Pages: 747-760
- Data Source
  KAKENHI-PROJECT-17540043
[Journal Article] F-pure thresholds and F-jumping exponents in dimension two2006
- Author(s)
  N.Hara
- Journal Title
  
  Math. Research Letter 13
  
  Pages: 747-760
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  N.Hara
- Journal Title
  
  Communications in Algebra 33
  
  Pages: 3375-3388
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  原伸生
- Journal Title
  
  Communications in Algebra 33
  
  Pages: 3375-3388
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] A characteristic p analog of multiplier ideals and applications.2005
- Author(s)
  N.Hara
- Journal Title
  
  Comm.Algebra 33
  
  Pages: 3375-3388
- Data Source
  KAKENHI-PROJECT-15340001
[Journal Article] A characteristic p analog of multiplier ideals and applications,2005
- Author(s)
  N.Hara
- Journal Title
  
  Communications in Algebra 33・10
  
  Pages: 3375-3388
- Data Source
  KAKENHI-PROJECT-17540043
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  Nobuo Hara
- Journal Title
  
  Communications in Algebra 33-3(掲載予定)
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  原伸生
- Journal Title
  
  Communication in Algelora 33(印刷中)
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] A characteristic p analog of multi-plier ideals and applications2005
- Author(s)
  N.Hara
- Journal Title
  
  Comm.Algebra 33
  
  Pages: 3375-3388
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  N.Hara
- Journal Title
  
  Comm. in Algebra 33
  
  Pages: 3375-3388
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A characteristic p analog of multiplier ideals and applications2005
- Author(s)
  Nobuo Hara
- Journal Title
  
  Communications in Algebra 33
  
  Pages: 3375-3388
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A generalization of test ideals,2004
- Author(s)
  N.Hara, K.Yoshida
- Journal Title
  
  Nagoya Math. J. 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340001
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara
- Journal Title
  
  Nagoya Math. J. 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara, S.Takagi
- Journal Title
  
  Nagoya Mathematical Journal 175
  
  Pages: 59-74
- Data Source
  KAKENHI-PROJECT-13440015
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara, S.Takagi
- Journal Title
  
  Nagoya Math.J. 175
  
  Pages: 59-74
- Data Source
  KAKENHI-PROJECT-15340001
[Journal Article] On a generalization of test ideals2004
- Author(s)
  原伸生
- Journal Title
  
  Nagoya Mathematical Journal 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540004
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara, S.Takagi
- Journal Title
  
  Nagoya Math J. 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A generalization of test ideals.2004
- Author(s)
  N.Hara, K.Yoshida
- Journal Title
  
  Nagoya Math.J. 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340001
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara, S.Takagi
- Journal Title
  
  Nagoya Math.J. 175
  
  Pages: 59-74
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] On a generalization of test ideals2004
- Author(s)
  N.Hara, S.Takagi
- Journal Title
  
  Nagoya Mathematical Journal 175
  
  Pages: 59-74
- Data Source
  KAKENHI-PROJECT-16540005
[Journal Article] A generalization of tight closure and multiplier ideals 355 (2003), 3143--3174.2003
- Author(s)
  N.Hara, K.Yoshida
- Journal Title
  
  Transaction of American Math.Soc. 355
  
  Pages: 3143-3174
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13440015
[Journal Article] A generalization of tight closure and multiplier ideals2003
- Author(s)
  N.Hara, K.Yoshuda
- Journal Title
  
  Trans.Amer.Math.Soc. vol 355
  
  Pages: 3143-3174
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13440015
[Journal Article] F-regular and F-pure rings vs.log terminal and log canonical singularities.2002
- Author(s)
  N.Hara, K.Watanabe
- Journal Title
  
  Journal of Algebraic Geometry vol 11
  
  Pages: 363-392
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13440015
[Journal Article] F-rationality of Rees algebras2002
- Author(s)
  N.Hara, K.Watanabe, K.Yoshida
- Journal Title
  
  Journal of Algebra vol 247
  
  Pages: 153-190
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13440015
[Journal Article] F-blowups of F-regular surface singularities
- Author(s)
  N.Hara
- Journal Title
  
  Proc.Amer.Math.Soc.
  
  Volume: (未定)(掲載確定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] Splitting of Frobenius sandwiches
- Author(s)
  N.Hara, T.Sawada
- Journal Title
  
  RIMS Kokyuroku Bessatsu
  
  Volume: (未定)(掲載確定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540039
[Journal Article] F-blowups of F-regular surface singularities
- Author(s)
  N. Hara
- Journal Title
  
  Proc. AMS
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19340001
[Presentation] Looking out for Frobenius summands on a quintic del Pezzo surface2023
- Author(s)
  原伸生
- Organizer
  研究集会「代数幾何学とその周辺の話題」
- Invited
- Data Source
  KAKENHI-PROJECT-21K03157
[Presentation] Frobenius summands on a quintic del Pezzo surface in positive characteristic2019
- Author(s)
  原伸生
- Organizer
  東京可換環論セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] Frobenius summands on a quintic del Pezzo surface in positive characteristic2019
- Author(s)
  原伸生
- Organizer
  研究集会「射影多様体の幾何とその周辺2019」
- Invited
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] Self-dual Frobenius summands on a quintic del Pezzo surface2019
- Author(s)
  Nobuo Hara
- Organizer
  OIST/RIMS Workshop: On the problem of Resolution of Singularities and Its Vicinity
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] The finite F-representation type of surface singularities via orbifold curves2018
- Author(s)
  原伸生
- Organizer
  第5回代数幾何研究集会ー宇部ー
- Invited
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] On Frobenius summands of graded rings2018
- Author(s)
  原伸生
- Organizer
  代数学シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] Frobenius push-forwards on weighted projective lines and the FFRT property of surface singularities2017
- Author(s)
  原伸生
- Organizer
  代数幾何ミニ研究集会
- Place of Presentation
  埼玉大学理学部
- Year and Date
  2017-03-06
- Invited
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] A few remarks on Frobenius summands on rational surfaces2016
- Author(s)
  Nobuo Hara
- Organizer
  Younger Generation in Algebraic Geometry and Complex Geometry
- Place of Presentation
  National Taiwan University，台北市（中華民国）
- Year and Date
  2016-01-14
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] Frobenius push-forwards on weighted projective lines and the FFRT property of surface singularities2016
- Author(s)
  Nobuo Hara
- Organizer
  正標数セミナー
- Place of Presentation
  東京大学数理科学研究科
- Year and Date
  2016-11-29
- Data Source
  KAKENHI-PROJECT-16K05092
[Presentation] A few remarks on Frobenius summands on rational surfaces2015
- Author(s)
  原伸生
- Organizer
  RIMS研究集会「特異点と不変量」
- Place of Presentation
  京都大学数理解析研究所（京都市）
- Year and Date
  2015-12-15
- Invited
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] Looking out for Frobenius summands on certain rational surfaces2014
- Author(s)
  原伸生
- Organizer
  正標数セミナー
- Place of Presentation
  東大数理
- Year and Date
  2014-11-17
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] Looking out for Frobenius summands on certain rational surfaces2014
- Author(s)
  原伸生
- Organizer
  研究集会「代数多様体とその周辺」
- Place of Presentation
  琉球大学
- Year and Date
  2014-09-29
- Invited
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] フロベニウス直像とF爆発に関する幾つかの問題2013
- Author(s)
  原伸生
- Organizer
  杜の都代数幾何学研究集会
- Place of Presentation
  東北大学
- Year and Date
  2013-02-14
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] フロベニウス直像とF 爆発に関する幾つかの問題2013
- Author(s)
  原伸生
- Organizer
  杜の都代数幾何学研究集会
- Place of Presentation
  東北大
- Year and Date
  2013-02-14
- Data Source
  KAKENHI-PROJECT-23540038
[Presentation] Structure of the F-blowups of simple elliptic singularities2012
- Author(s)
  原伸生
- Organizer
  RIMS 研究集会「高次元双有理幾何の周辺」
- Place of Presentation
  京都大学
- Year and Date
  2012-06-12
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] Structure of the F-blowups of simple elliptic singularities2012
- Author(s)
  原伸生
- Organizer
  高次元代数幾何の周辺
- Place of Presentation
  京都数研
- Year and Date
  2012-06-12
- Data Source
  KAKENHI-PROJECT-23540038
[Presentation] F-blowups of F-regular surface singularities2011
- Author(s)
  原伸生
- Organizer
  日本数学会年会
- Place of Presentation
  早稲田大学(アブストラクト原稿のみ)
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] Aspects of F-regularity-old and new-2011
- Author(s)
  原伸生
- Organizer
  代数学シンポジウム
- Place of Presentation
  岡山大学
- Year and Date
  2011-08-09
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of F-regular surface singularities2011
- Author(s)
  原伸生
- Organizer
  日本数学会
- Place of Presentation
  早稲田大学
- Year and Date
  2011-03-23
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of normal surface singularities2011
- Author(s)
  N.Hara
- Organizer
  Workshop on Algebraic Geometry in Positive Characteristic
- Place of Presentation
  韓国高等研究所(KIAS),韓国
- Year and Date
  2011-05-26
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of normal surface Singularities2011
- Author(s)
  N. Hara
- Organizer
  Workshop on Algebraic Geometry in Positive Characteristic
- Place of Presentation
  KIAS, 韓国
- Year and Date
  2011-05-26
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] Aspects of F-regularity -old and new-2011
- Author(s)
  原伸生
- Organizer
  代数学シンポジウム
- Place of Presentation
  岡山大
- Year and Date
  2011-08-09
- Data Source
  KAKENHI-PROJECT-23540038
[Presentation] F-blowups of F-regular surface Singularities2011
- Author(s)
  原伸生
- Organizer
  研究集会「ファノ多様体と正標数の話題を中心として」
- Place of Presentation
  九州大学
- Year and Date
  2011-02-11
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of normal surface singularities2011
- Author(s)
  原伸生
- Organizer
  KIAS
- Place of Presentation
  ソウル, 韓国
- Year and Date
  2011-05-26
- Data Source
  KAKENHI-PROJECT-23540038
[Presentation] F-blowups of F-regular surface singularities2011
- Author(s)
  原伸生
- Organizer
  代数幾何学研究集会-ファノ多様体と正標数上の話題を中心として-
- Place of Presentation
  九州大学
- Year and Date
  2011-02-21
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] Aspects of F-regularity-old and new2011
- Author(s)
  原伸生
- Organizer
  代数学シンポジウム
- Place of Presentation
  岡山大学
- Year and Date
  2011-08-09
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of certain Frobenius sandwich singularities and rational double points2010
- Author(s)
  N.Hara
- Organizer
  Fudan-Tohoku joint workshop on algebraic geometry
- Place of Presentation
  復旦大学、上海,中国
- Year and Date
  2010-06-01
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] F-blowups of certain Frobenius sandwich singularities and rational double points2010
- Author(s)
  N. Hara
- Organizer
  Fudan-Tohoku Joint Workshop on Algebraic Geometry
- Place of Presentation
  復旦大学,中国
- Year and Date
  2010-06-01
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] 付値環に関するある有限性について2010
- Author(s)
  梶原健
- Organizer
  研究集会「トロピカル幾何と計算代数」
- Place of Presentation
  神戸大学理学部
- Year and Date
  2010-01-04
- Data Source
  KAKENHI-PROJECT-19340001
[Presentation] F-特異点とその応用2008
- Author(s)
  原伸生
- Organizer
  玉原代数幾何セミナー2008
- Place of Presentation
  東京大学玉原国際セミナーハウス
- Year and Date
  2008-08-11
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Strong F-regularity vs. log terminal singularity in non-Q-Gorenstein case2008
- Author(s)
  Nobuo Hara
- Organizer
  Commutative Algebra and Its Interactions A conference in honor of Mel Hochster
- Place of Presentation
  University of Michigan(アメリカ)
- Year and Date
  2008-08-04
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Strong F-regularity vs.log ter-minal singularity in non-Q-Gorenstein case2008
- Author(s)
  N. Hara
- Organizer
  Commutative Algebra and its Interactions, A conference in honor of Mel Hochster
- Place of Presentation
  University of Michigan, USA
- Year and Date
  2008-08-04
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Bound for Frobenius destabilized semistable bundles and Harder-Narasi-mhan filtrations in characteristic p(after Langer, Shepherd-Barron et.al.)2007
- Author(s)
  原伸生
- Organizer
  代数幾何学都留ワークショップ
- Place of Presentation
  都留文科大学
- Year and Date
  2007-09-27
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Bound for Frobenius destabilized semistable bundles and Harder-Narasimhan filtrations in characteristic p2007
- Author(s)
  原伸生
- Organizer
  代数幾何学都留ワークショップ
- Place of Presentation
  都留文科大学
- Year and Date
  2007-09-27
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Multiplier idealの標数0の手法と標数$p$の手法及びその応用I2006
- Author(s)
  原伸生
- Organizer
  短期共同研究集会"Arc Spaces and Multiplier Ideals"
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2006-08-28
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Multiplier idealの標数0の手法と標数$p$の手法及びその応用II2006
- Author(s)
  原伸生
- Organizer
  短期共同研究集会"Arc Spaces and Multiplier Ideals"
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2006-08-29
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Characteristic p method : F-sin- gularities, ARCC Workshop "Numerical Invariants of Singularities and Higher-Dimensional Algebraic Varieties,"2006
- Author(s)
  N. Hara
- Organizer
  Ameri-can Institute of Mathematics
- Place of Presentation
  Palo Alto, USA
- Year and Date
  2006-08-01
- Data Source
  KAKENHI-PROJECT-18540007
[Presentation] Structure of the F-blowups of simple elliptic singularities
- Author(s)
  原伸生
- Organizer
  RIMS研究集会『高次元代数幾何の周辺』
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-22540039
[Presentation] The iterated Frobenius push-forward on rational surfaces
- Author(s)
  Nobuo Hara
- Organizer
  Birational Geometry and Singularities in Positive Characteristic
- Place of Presentation
  東京大学
- Invited
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] Stabilization of Frobenius push-forward and the F-blowup sequence
- Author(s)
  Nobuo Hara
- Organizer
  The Commutative Algebra of Singularities in Birational Geometry
- Place of Presentation
  Mathematical Sciences Research Institute, Berkeley, USA
- Invited
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] Stabilization of Frobenius push-forward and F-blowup sequence
- Author(s)
  原伸生
- Organizer
  代数幾何学城崎シンポジウム
- Place of Presentation
  兵庫県立城崎大会議館
- Invited
- Data Source
  KAKENHI-PROJECT-25400035
[Presentation] フロベニウス直像とF爆発に関する幾つかの問題
- Author(s)
  原伸生
- Organizer
  杜の都代数幾何学研究集会
- Place of Presentation
  東北大学
- Data Source
  KAKENHI-PROJECT-22540039

1. ISHIDA Masanori (30124548)

# of Collaborated Projects: 11 results

# of Collaborated Products: 0 results
2. OGATA Shoetsu (90177113)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
3. KAJIWARA Takeshi (00250663)

# of Collaborated Projects: 7 results

# of Collaborated Products: 6 results
4. YOSHIDA Ken-ichi (80240802)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
5. WATANABE Keiichi (10087083)

# of Collaborated Projects: 4 results

# of Collaborated Products: 2 results
6. YUKIE Akihiko (20312548)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
7. HANAMURA Masaki (60189587)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
8. YASUKURA Osami (00191122)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
9. NAKAMURA Tetsuo (90016147)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
10. TOMARI Masataka (60183878)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. FUKUDA Takuo (00009599)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
12. KURANO Kazuhiko (90205188)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
13. ASHIKAGA Tadashi (90125203)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. TSUCHIHASHI Hiroyasu (00146119)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. TAKAHASHI Tomokuni (50259793)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. SATO Hiroshi (20433310)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. MAEDA Hidetoshi (10229312)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. SATO atsushi (30241516)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. ITO Hiroyuki (60232469)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. MOTEGI Kamahi (40219978)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. TAKAGI Shunsuke (40380670)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
22. 楫元 (70194727)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. 野間淳 (90262401)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
24. 森田康夫 (20011653)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
25. 長谷川浩司 (30208483)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
26. 鈴木正彦 (00171249)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
27. 橋本光靖 (10208465)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

HARA Nobuo 原 伸生

Research Projects

Research Products

Co-Researchers

Algebro-geometric study of iterated Frobenius direct images on del Pezzo surfaces in positive characteristicPrincipal Investigator

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Global F-regularity, Fano variety and the finiteness of Frobenius direct imagesPrincipal Investigator

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Research on the structure of the Frobenius push-forwards on algebraic varieties and singularities in positive characteristicPrincipal Investigator

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Aspects of purely inseparable morphisms in algebraic geometryPrincipal Investigator

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Algebro-Geometric Approach to Invariants in Commutative AlgebraPrincipal Investigator

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Applications of tight closure and F-singularity to algebraic geometryPrincipal Investigator

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Algebro-Geometric Method in Commutative AlgebraPrincipal Investigator

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HARA Nobuo 原伸生