• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

HARA Nobuo  原 伸生

ORCIDConnect your ORCID iD *help
Researcher Number 90298167
Other IDs
External Links
Affiliation (Current) 2022: 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 – 2021: 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 / multiplier ideal / F-特異点 / tight closure / ベクトル束 / フロベニウス直像 / F-正則(F-regular) … More / F-有理(F-rational) / test ideal / F-正則 / 可換環論 / F-純閾値 / フロベニウス射 / 代数多様体 / F-爆発 / 随伴束 / F爆発 / 密着閉包 / 判定イデアル / 乗数イデアル / F-singularity / algebraic geometry / 有限F表現型(FFRT) / del Pezzo 曲面 / F-純(F-pure) / 対数的端末特異点 / 組(pair) / 対数的標準特異点 / F-跳躍数 / F-正則性 / Q-Gorenstein性 / Hilbert-Kunz重複度 / 擬斉次 / 半安定性 / 組の特異点 / 対数的標準閾特異点 / F-純特異点の最小中心 / 代数曲面 / F-分裂次元 / 純非分離射 / F-サンドイッチ / 単純楕円型特異点 / F正則 / Fサンドイッチ / 平坦化 / 大域的F有限型 / 大域的F正則 / 大域的有限F表現型 / 代数幾何学 / Rees環 / 密着閉包(I-密着閉包) / Subadditivity / 記号的ベキ乗 / Tight closure / positive characteristic / commutative algebra / Rees algebra / トーリック多様体 / トロピカル幾何 / 重複度 / 対数的標準閾値 / CCI曲面 / トロピカル・トーリック多様体 / Buchsbaum斉次代数 / P-フラクタル / F-pure threshold / toric variety / tropical geometry / multiplicity / del Pezzo曲面 / 反標準環 / 有限F表現型(FFRT) / Frobenius直像 / 5次del Pezzo曲面 / F-符号数 / 2次元正規次数環 / 有限F表現型 / 2次元特異点 / 代数的スタック / ファノ多様体 … More
Except Principal Investigator
トーリック多様体 / tight closure / 代数幾何学 / 特異点 / 有理特異点 / 楕円曲線 / multiplier ideal / 扇 / 凸多面体 / 代数多様体 / モチーフ / 代数群 / 代数幾何 / 密度定理 / 概均質ベクトル空間 / 量子群 / アーベル多様体 / toric variety / lc threshold / F-pure / Hilbert-Kunz multiplicity / Frobenius写像 / log terminal singularity / F-pure threshold / 整閉イデアル / Hilbert-Kunz重複度 / F-regular ring / Frobenius endomorphism / F-threshold / F-rational ring / totally reflexive module / 循環商特異点 / トーリック / モティーフ / 代数多様本 / ファノ多様体 / 凸体 / 代数学 / 幾何学 / ミンコフスキー和 / 偏極多様体 / ベクトル束 / 随伴多様体 / sumplectic triple system / 接触型階数分解 / Freudenthal多様体 / 割線多様体 / 等質性 / symplectic triple system / 射影代数幾何 / 複素単純リー代数 / symplectic triple systems / 射影幾何学 / 射影多様体 / 階数別リー代数 / symplectic3項系 / フロベニウス射 / 定義方程式 / イニシャルイデアル / 等質射影多様体 / 階数別Lie代数 / fight・closure / ample vector bundle / ガウス射 / secant多様体 / Polarized varieties / Vector bundles / Algebraic geometry / Adjoint varieties / Symplectic triple systems / Contact type gradtion / Freudenthal varieties / Secant variety / 類数 / Q-曲線 / F-特異点 / 密着閉方 / 可積分系 / 既均質ベクトル空間 / 不定方程式 / キーワード6 / キーワード7 / キーワード8 / class number / density theorems / toric varieties / Q-curves / F-singularities / elliptic curves / Mordell-Weil group / ブローアップ / リース環 / 可換環 / 楕円曲面 / 強レフシェッツ定理 / K3曲面 / 双対化定理 / 交叉コホモロジー群 / 端末特異点 / algebraic variety / abelian variety / elliptic curve / blowup / Rees alebra / fan / thight closure / 正則局所環 / log resolution / UFD / Seifelt手術 / Chow群 / 可換環論 / 全座標環 / 素元分解環 / 特異点の解消 / subadditivity / regular ring / terminal singularity / blowing up / 商特異点 / F-pure ring / regular local ring / 代数的サイクル / フロベニウス写像 / 対数アーベル多様体 / test ideal / 密着閉包 / 対数的代数幾何 / Prehomogeneous vector spaces / Toric Variety / Algebraic cycles / Motif / Frobenius / 孤立特異点 / トロピカル幾何 / convex polytope / algebraic geometry / F-有理環 / 整閉包 / totally reflexive加群 / 重複度 / 乗数イデアル / 標数p>0の手法 / jumping coefficient / jumping number / F-正則対 / rational singularity / integral closure / multiplicity Less
  • Research Projects

    (18 results)
  • Research Products

    (88 results)
  • Co-Researchers

    (27 People)
  •  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
  •  大域的F正則性,ファノ多様体とフロベニウス直像の有限性Principal Investigator

    • Principal Investigator
      原 伸生
    • 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

All 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2008 2007 2006 2005 2004 2003 2002 Other

All Journal Article Presentation Book

  • [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 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] 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

URL: 

Are you sure that you want to connect your ORCID iD to this researcher?
* This action can be performed only by the researcher themselves.

この研究者とORCID iDの連携を行いますか?
※ この処理は、研究者本人だけが実行できます。

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi