Nasu Hirokazu 那須弘和

… Alternative Names

NASU Hirokazu 那須弘和

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Researcher Number	30535331
Other IDs	https://orcid.org/0000-0003-3839-161X
Affiliation (Current)	2025: 東海大学, 理学部, 教授
Affiliation (based on the past Project Information) *help	2024: 東海大学, 理学部, 教授 2021 – 2022: 東海大学, 理学部, 教授 2017 – 2020: 東海大学, 理学部, 准教授 2017: 東海大学, 理学部, 講師 2014 – 2015: 東海大学, 理学部, 准教授 2011 – 2013: 東海大学, 理学部, 講師 2009 – 2010: Tokyo Denki University, 情報環境学部, 助教
Review Section/Research Field	Principal Investigator Algebra / Basic Section 11010:Algebra-related Except Principal Investigator Algebra
Keywords	Principal Investigator ヒルベルトスキーム / 空間曲線 / 変形理論 / 障害類 / 障害 / 無限小変形 / ファノ多様体 / del Pezzo曲面 / 変形障害 / エンリケス曲面 … More / エンリケス・ファノ多様体 / 楕円曲線 / K3曲面 / デルペッツォ多様体 / 非被約成分 / 高次元多様体 / 代数多様体の射 / 代数曲面 / 代数幾何学 / デルペッゾ曲面 / 退化 / ヒルベルト旗スキーム / エンリケス多様体 / 変形 / 3次曲面 / ４次曲面 / 有理曲線 / ４次超曲面 / リエゾン / スクロール / 代数多様体 … More Except Principal Investigator Calabi-Yau多様体 / Enriques曲面 / CalabiYau多様体 / モジュライ空間 / 算術的多様体 / K3曲面 / クラスター代数 / カラビ・ヤウ多様体 / モジュライ / 代数学 / 離散群とコホモロジー次元 / 複素多様体の変形 / 力学的次数 / 直交型モジュラー多様体 / クレモナ変換 / エンリケス曲面 / 幾何学的群論 / アラケロフ幾何 / 表現論 / 複素力学系 / 複素幾何 / 代数幾何学 Less

Explicit study on Hilbert schemes of higher dimensional algebraic varieties using intermediate surfaces and morphismsPrincipal Investigator
- Principal Investigator
  
  那須弘和
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11010:Algebra-related
- Research Institution
  Tokai University
Study on Hilbert schemes from the viewpoint of morphisms of algebraic varietiesPrincipal Investigator
- Principal Investigator
  
  Nasu Hirokazu
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11010:Algebra-related
- Research Institution
  Tokai University
Obstructions to deforming curves on algebraic varieties and a study on their Hilbert schemesPrincipal Investigator
- Principal Investigator
  
  Nasu Hirokazu
- Project Period (FY)
  2017 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tokai University
Deformations of curves on a uniruled variety and their obstructionsPrincipal Investigator
- Principal Investigator
  
  Nasu Hirokazu
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Tokai University
Moduli spaces of algebraic varieties and self-morphisms
- Principal Investigator
  
  Mukai Shigeru
- Project Period (FY)
  2013 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Algebra
- Research Institution
  Kyoto University
Deformations of curves on a higher dimensionalalgebraic variety and their obstructionsPrincipal Investigator
- Principal Investigator
  
  NASU Hirokazu
- Project Period (FY)
  2011 – 2012
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Algebra
- Research Institution
  Tokai University
Deformations of curves on a higher dimensional algebraic variety and their obstructionsPrincipal Investigator
- Principal Investigator
  
  NASU Hirokazu
- Project Period (FY)
  2009 – 2010
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Algebra
- Research Institution
  Tokyo Denki University

[Journal Article] Primary obstructions to deforming embedded curves and an application to the Hilbert scheme of space curves2023
- Author(s)
  那須弘和
- Journal Title
  
  第 20 回代数曲線論シンポジウム (米田二良先生,大渕朗先生退職記念) 報告集
  
  Volume: 20
- Open Access
- Data Source
  KAKENHI-PROJECT-20K03541
[Journal Article] Obstructions to deforming space curves lying on a smooth cubic surface2022
- Author(s)
  Nasu Hirokazu
- Journal Title
  
  manuscripta mathematica
  
  Volume: - Issue: 1-2 Pages: 31-55
- DOI
  10.1007/s00229-022-01404-z
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K03541
[Journal Article] Obstructions to deforming curves on an Enriques-Fano 3-fold2021
- Author(s)
  Nasu Hirokazu
- Journal Title
  
  Journal of Pure and Applied Algebra
  
  Volume: 225 Issue: 9 Pages: 106677-106677
- DOI
  10.1016/j.jpaa.2021.106677
- NAID
  120006796429
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K03541, KAKENHI-PROJECT-17K05210
[Journal Article] Obstructions to deforming curves on an Enriques-Fano 3-fold2020
- Author(s)
  Hirokazu Nasu
- Journal Title
  
  「城崎代数幾何学シンポジウム2019」報告集
  
  Volume: 2019 Pages: 85-94
- NAID
  120006796429
- Open Access
- Data Source
  KAKENHI-PROJECT-17K05210
[Journal Article] Corrigendum to “Obstructions to deforming curves on a 3-fold, III: Deformations of curves lying on a K3 surface”2020
- Author(s)
  Nasu Hirokazu
- Journal Title
  
  International Journal of Mathematics
  
  Volume: 31 Issue: 12 Pages: 2092001-2092001
- DOI
  10.1142/s0129167x20920019
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K03541, KAKENHI-PROJECT-17K05210
[Journal Article] Obstructions to deforming curves on a prime Fano 3‐fold2019
- Author(s)
  Nasu Hirokazu
- Journal Title
  
  Mathematische Nachrichten
  
  Volume: 292 Issue: 8 Pages: 1777-1790
- DOI
  10.1002/mana.201800185
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05210
[Journal Article] 書評 R. Hartshorne: Deformation Theory (Grad. Texts in Math., 257)2019
- Author(s)
  那須弘和
- Journal Title
  
  数学
  
  Volume: 71
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05210
[Journal Article] Obstructions to deforming curves on a 3-fold, III: Deformations of curves lying on a K3 surface2017
- Author(s)
  Hirokazu Nasu
- Journal Title
  
  International Journal of Mathematics
  
  Volume: 28 Issue: 13 Pages: 1750099-1750099
- DOI
  10.1142/s0129167x17500999
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05210, KAKENHI-PROJECT-25220701
[Journal Article] 3次元Fano多様体上のK3曲面に含まれる曲線の変形障害について2016
- Author(s)
  那須弘和
- Journal Title
  
  研究集会「射影多様体の幾何とその周辺2015」報告集
- Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25400048
[Journal Article] Obstructions to deforming space curves lying on an elliptic quartic surface2014
- Author(s)
  那須弘和
- Journal Title
  
  数理解析研究所講究録「Fano 多様体の最近の進展」
  
  Volume: No.1897
- Data Source
  KAKENHI-PROJECT-25220701
[Journal Article] Obstructions to deforming space curves lying on a smooth quartic surface2014
- Author(s)
  那須弘和
- Journal Title
  
  第11回代数曲線論シンポジウム報告集
  
  Volume: --
- Data Source
  KAKENHI-PROJECT-25400048
[Journal Article] Obstructions to deforming space curves lying on an elliptic quartic surface2014
- Author(s)
  那須弘和
- Journal Title
  
  京都大学数理解析研究所講究録「Fano多様体の最近の進展」
  
  Volume: 1897巻
- Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25400048
[Journal Article] Obstructions to deforming curves on a 3-fold, II : Deformations of degenerate curves on a del Pezzo 3-fold2010
- Author(s)
  那須弘和
- Journal Title
  
  Annales de L'Institut Fourier
  
  Volume: 60巻 Pages: 1280-1316
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740029
[Journal Article] Obstructions to deforming degenerate curves on a scroll (in Japanese)2010
- Author(s)
  那須弘和
- Journal Title
  
  研究集会「都の西北代数幾何学シンポジウム」報告集
  
  Pages: 105-114
- Data Source
  KAKENHI-PROJECT-21740029
[Journal Article] Obstructionsto deforming curves on a 3-fold, II : Deformations of degenerate curves on a del Pezzo 3-fold2010
- Author(s)
  Hirokazu Nasu
- Journal Title
  
  Annales de L'Institut Fourier 60,no.4
  
  Pages: 1289-1316
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740029
[Journal Article] Obstructions to deforming curves on a 3-fold, I : A generalization of Mumford's example and an application to Hom schemes2009
- Author(s)
  向井茂、那須弘和
- Journal Title
  
  Journal of Algebraic Geometry 18巻
  
  Pages: 691-709
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740029
[Journal Article] Obstructions to deforming space curves and a remark to a conjecture of Kleppe (in Japanese)2009
- Author(s)
  那須弘和
- Journal Title
  
  研究集会「射影多様体の幾何とその周辺2009」報告集
  
  Pages: 1-10
- Data Source
  KAKENHI-PROJECT-21740029
[Journal Article] Obstructions to deforming curves on a 3-fold, I : A generalization of Mumford's example and an application to Hom schemes2009
- Author(s)
  Shigeru Mukai, Hirokazu Nasu
- Journal Title
  
  Journal of Algebraic Geometry 18
  
  Pages: 691-709
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Primary obstructions to deforming embedded curves and an application to the Hilbert scheme of space curves2023
- Author(s)
  Hirokazu Nasu
- Organizer
  21st Affine Algebraic Geometry meeting
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] 代数多様体上の曲線の変形障害とヒルベルトスキームについて2023
- Author(s)
  那須弘和
- Organizer
  第18回代数・解析・幾何学セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] 楕円曲線束の構成とエンリケス・ファノ三様体のヒルベルトスキーム2023
- Author(s)
  那須弘和
- Organizer
  湯布院代数幾何学ワークショップ
- Invited
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] Obstructions to deforming space curves lying on a smooth cubic surface2022
- Author(s)
  那須弘和
- Organizer
  日本数学会2022年度秋季総合分科会
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] Primary obstructions to deforming embedded curves and an application to the Hilbert scheme of space curves2022
- Author(s)
  那須弘和
- Organizer
  第20回代数曲線論シンポジウム（米田二良先生，大渕朗先生退職記念）
- Invited
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] 3次元多様体上の曲線の第1変形障害について2022
- Author(s)
  那須弘和
- Organizer
  日本数学会2022年度秋季総合分科会
- Data Source
  KAKENHI-PROJECT-20K03541
[Presentation] Obstructions to deforming curves on an Enriques-Fano 3-fold2019
- Author(s)
  Hirokazu NASU
- Organizer
  Kinosaki Algebraic Geometry Symposium 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] 3次元エンリケス・ファノ多様体上の曲線の変形障害について2019
- Author(s)
  那須弘和
- Organizer
  東京電機大学数学講演会, 東京電機大学
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on an Enriques-Fano 3-fold2019
- Author(s)
  Hirokazu NASU
- Organizer
  Seminar in Algebra and Algebraic Geometry, University of Oslo
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on an Enriques-Fano 3-fold2019
- Author(s)
  Hirokazu Nasu
- Organizer
  Algebraic Geometry and Moduli Theory ―Conference in Honor of Shigeru Mukai's Retirement―, RIMS, Kyoto University
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on an Enriques-Fano threefold2018
- Author(s)
  那須弘和
- Organizer
  射影多様体の幾何とその周辺, 高知工科大学
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] On the image of Hilbert-flag schemes and non-reduced components of the Hilbert scheme of Fano 3-folds2018
- Author(s)
  那須弘和
- Organizer
  第4回杜の都代数幾何学研究集会＠仙台
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves on a prime Fano threefold2018
- Author(s)
  那須弘和
- Organizer
  熊本代数幾何・数論セミナー, 熊本大学
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on an Enriques-Fano 3-fold2018
- Author(s)
  那須弘和
- Organizer
  東工大数論・幾何学セミナー, 東京工業大学
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] On the image of Hilbert-flag schemes and non-reduced components of the Hilbert scheme of Fano 3-folds2018
- Author(s)
  那須弘和
- Organizer
  第4回杜の都代数幾何学研究集会＠仙台
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  那須弘和
- Organizer
  第5回K3曲面・エンリケス曲面ワークショップ
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  Hirokazu Nasu
- Organizer
  Hakodate workshop on arithmetic geometry 2017
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2017
- Author(s)
  Hirokazu Nasu
- Organizer
  Workshop on Fano varieties and Calabi-Yau varieties
- Place of Presentation
  神戸大学理学部(兵庫県神戸市)
- Year and Date
  2017-01-25
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  那須弘和
- Organizer
  第16回代数曲面ワークショップ at 秋葉原
- Invited
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  Hirokazu Nasu
- Organizer
  Hakodate workshop on arithmetic geometry 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  那須弘和
- Organizer
  第16回代数曲面ワークショップ at 秋葉原
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  那須弘和
- Organizer
  日本数学会2017年度秋季総合分科会
- Data Source
  KAKENHI-PROJECT-17K05210
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  那須弘和
- Organizer
  日本数学会2017年度秋季総合分科会
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2017
- Author(s)
  Hirokazu Nasu
- Organizer
  THE 15TH AFFINE ALGEBRAIC GEOMETRY MEETING
- Place of Presentation
  関西学院大学大阪梅田キャンパス（大阪府大阪市）
- Year and Date
  2017-03-03
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves on a prime Fano threefold2017
- Author(s)
  Hirokazu Nasu
- Organizer
  第5回K3曲面・エンリケス曲面ワークショップ
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2016
- Author(s)
  那須　弘和
- Organizer
  都の西北代数幾何学シンポジウム
- Place of Presentation
  早稲田大学理工学部(東京都新宿区)
- Year and Date
  2016-11-15
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] 3次元Fano多様体上のK3曲面に含まれる曲線の変形障害について2016
- Author(s)
  那須　弘和
- Organizer
  研究集会「代数曲線・曲面とその周辺」
- Place of Presentation
  大阪大学理学部（大阪府豊中市）
- Year and Date
  2016-11-26
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2016
- Author(s)
  那須　弘和
- Organizer
  代数幾何学セミナー
- Place of Presentation
  九州大学(福岡県福岡市)
- Year and Date
  2016-10-28
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2016
- Author(s)
  Hirokazu Nasu
- Organizer
  Seminar in Algebra and Algebraic Geometry
- Place of Presentation
  Department of Mathematics, University of Oslo (Oslo, Norway)
- Year and Date
  2016-03-03
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2016
- Author(s)
  那須　弘和
- Organizer
  日本数学会
- Place of Presentation
  関西大学千里山キャンパス(大阪府吹田市)
- Year and Date
  2016-09-18
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] 3次元Fano多様体上の曲線の変形障害について2016
- Author(s)
  那須　弘和
- Organizer
  第4回 K3曲面・エンリケス曲面ワークショップ
- Place of Presentation
  北海道教育大学　札幌駅前サテライト(北海道札幌市）
- Year and Date
  2016-10-12
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] K3曲面上の曲線の変形障害について2016
- Author(s)
  那須弘和
- Organizer
  グレブナー若手集会
- Place of Presentation
  東海大学理学部（神奈川県平塚市）
- Year and Date
  2016-02-17
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] K3曲面上の曲線の変形障害について2016
- Author(s)
  那須弘和
- Organizer
  グレブナー若手集会
- Place of Presentation
  東海大学理学部（神奈川県・平塚市）
- Year and Date
  2016-02-17
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2016
- Author(s)
  Hirokazu Nasu
- Organizer
  Seminar in Algebra and Algebraic Geometry
- Place of Presentation
  Department of Mathematics, University of Oslo（ノルウェー・オスロ）
- Year and Date
  2016-03-03
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming curves on a threefold and non-reduced components of Hilbert schemes2015
- Author(s)
  Hirokazu Nasu
- Organizer
  第 13 回アフィン代数幾何学研究集会
- Place of Presentation
  関西学院大学大阪梅田キャンパス
- Year and Date
  2015-03-08
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2015
- Author(s)
  那須弘和
- Organizer
  第3回K3曲面・エンリケス曲面ワークショップ
- Place of Presentation
  北海道教育大学札幌駅前サテライト（北海道・札幌市）
- Year and Date
  2015-08-17
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] K3曲面に含まれる3次元Fano多様体上の曲線の変形障害について2015
- Author(s)
  那須弘和
- Organizer
  射影多様体の幾何とその周辺2015
- Place of Presentation
  高知大学理学部（高知県高知市）
- Year and Date
  2015-10-31
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] 3次元代数多様体上の曲線の変形障害について2015
- Author(s)
  那須弘和
- Organizer
  埼玉大学数学科談話会
- Place of Presentation
  埼玉大学理学部（埼玉県さいたま市）
- Year and Date
  2015-12-04
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves lying on a K3 surface in a Fano 3-fold2015
- Author(s)
  那須弘和
- Organizer
  第3回K3曲面・エンリケス曲面ワークショップ
- Place of Presentation
  北海道教育大学札幌駅前サテライト(北海道札幌市）
- Year and Date
  2015-08-17
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming curves on a threefold and non-reduced components of Hilbert schemes2015
- Author(s)
  那須弘和
- Organizer
  第13回アフィン代数幾何学研究集会
- Place of Presentation
  関西学院大学大阪梅田キャンパス（大阪府・大阪市）
- Year and Date
  2015-03-08
- Invited
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] 3次元代数多様体上の曲線の変形障害について2015
- Author(s)
  那須弘和
- Organizer
  埼玉大学数学科談話会
- Place of Presentation
  埼玉大学理学部（埼玉県・さいたま市）
- Year and Date
  2015-12-04
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] K3曲面に含まれる3次元Fano多様体上の曲線の変形障害について2015
- Author(s)
  那須弘和
- Organizer
  研究集会「射影多様体の幾何とその周辺2015」
- Place of Presentation
  高知大学理学部（高知県・高知市）
- Year and Date
  2015-10-31
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming space curves lying on a quartic K3 surface2014
- Author(s)
  那須弘和
- Organizer
  研究集会「代数多様体とその周辺」
- Place of Presentation
  琉球大学理学部
- Year and Date
  2014-09-30
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming space curves lying on a smooth quartic surface2014
- Author(s)
  那須弘和
- Organizer
  日本数学会
- Place of Presentation
  広島大学
- Year and Date
  2014-09-28
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming space curves lying on a quartic K3 surface2014
- Author(s)
  那須弘和
- Organizer
  研究集会「代数多様体とその周辺」
- Place of Presentation
  琉球大学（沖縄県・中頭郡）
- Year and Date
  2014-09-30
- Invited
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming space curves lying on a smooth quartic surface2014
- Author(s)
  那須弘和
- Organizer
  日本数学会2014年度秋季総合分科会
- Place of Presentation
  広島大学（広島県・東広島市）
- Year and Date
  2014-09-28
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming space curves and non-reduced components of the Hilbert scheme2013
- Author(s)
  Hirokazu Nasu
- Organizer
  Algebra-Seminaret i Oslofjord-Regionen
- Place of Presentation
  Oslo and Akershus University College (ノルウェー)
- Year and Date
  2013-03-05
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 3次元単線織多様体上の曲線の変形障害について2012
- Author(s)
  那須弘和
- Organizer
  東京理科大学談話会
- Place of Presentation
  東京理科大学理工学部数学科
- Year and Date
  2012-07-20
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] ３次元単線織多様体上の曲線の変形障害について2012
- Author(s)
  那須弘和
- Organizer
  代数学セミナー(招待講演)
- Place of Presentation
  広島大学理学部数学科
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 3次元単線織多様体上の曲線の変形障害について2012
- Author(s)
  那須弘和
- Organizer
  第10回アフィン代数幾何学研究集会
- Place of Presentation
  関西学院大学大阪梅田キャンパス
- Year and Date
  2012-09-06
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 3次元単線織多様体上の曲線の変形障害について2012
- Author(s)
  那須弘和
- Organizer
  代数学セミナー
- Place of Presentation
  広島大学理学部数学科
- Year and Date
  2012-02-03
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 空間曲線のリエゾンとヒルベルトスキームの既約成分2012
- Author(s)
  那須弘和
- Organizer
  研究集会「可換環論と鏡映群の表現論」
- Place of Presentation
  東海大学理学部
- Year and Date
  2012-03-08
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 空間曲線のリエゾンとヒルベルトスキームの既約成分2012
- Author(s)
  那須弘和
- Organizer
  研究集会「可換環論と鏡映群の表現論」(招待講演)
- Place of Presentation
  東海大学理学部
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] Obstructions to deforming space curves and non-reduced components of the Hilbert scheme2012
- Author(s)
  那須弘和
- Organizer
  Workshop in Hawaii: Aspects of SLP and WLP
- Place of Presentation
  Hawaii Tokai International College (米国)
- Year and Date
  2012-09-14
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] Obstructions to deforming curves on a uniruled 3-fold2011
- Author(s)
  那須弘和
- Organizer
  代数幾何学セミナー(招待講演)
- Place of Presentation
  東京大学数理科学研究科
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] Obstructions to deforming degenerate curves on a scroll2011
- Author(s)
  那須弘和
- Organizer
  京都大学代数幾何学セミナー
- Place of Presentation
  京都大学数学教室(京都府)
- Year and Date
  2011-02-04
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming curves on a uniruled 3-fold2011
- Author(s)
  那須弘和
- Organizer
  代数幾何学セミナー
- Place of Presentation
  東京大学数理科学研究科
- Year and Date
  2011-12-05
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] Obstructions to deforming degenerate curves on a scroll2011
- Author(s)
  那須弘和
- Organizer
  日本数学会2011年度年会(震災による影響で開催中止、アブストラクトによる発表のみ)
- Place of Presentation
  早稲田大学理工学部
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming degenerate curves on a scroll2011
- Author(s)
  那須弘和
- Organizer
  日本数学会
- Place of Presentation
  早稲田大学理工学部(東京都)(講演は震災の影響の為中止、アブストラクトのみ発表)
- Year and Date
  2011-03-20
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming degenerate curves on a scroll2011
- Author(s)
  那須弘和
- Organizer
  日本数学会秋季総合分科会
- Place of Presentation
  信州大学理学部
- Year and Date
  2011-09-30
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] Obstructions to deforming degenerate curves on a scroll2010
- Author(s)
  那須弘和
- Organizer
  研究集会「都の西北代数幾何学シンポジウム」
- Place of Presentation
  早稲田大学理工学部(東京都)(招待講演)
- Year and Date
  2010-11-10
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming degenerate curves on a scroll2010
- Author(s)
  那須弘和
- Organizer
  研究集会「都の西北代数幾何学シンポジウム」
- Place of Presentation
  早稲田大学理工学部
- Year and Date
  2010-11-10
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming curves on a 3-fold2009
- Author(s)
  那須弘和
- Organizer
  研究集会「Syzygies on Projective Varieties」
- Place of Presentation
  佐賀大学理工学部
- Year and Date
  2009-09-14
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming curves on a 3-fold (joint work with S.Mukai)2009
- Author(s)
  那須弘和
- Organizer
  研究集会「Syzygies of Projective Varieties」
- Place of Presentation
  佐賀大学理工学部
- Year and Date
  2009-09-14
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming curves on a 3-fold and a remark to a conjecture of Kleppe2009
- Author(s)
  那須弘和
- Organizer
  研究集会「代数幾何の関連する諸分野」
- Place of Presentation
  北海道大学理学部
- Year and Date
  2009-09-02
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Obstructions to deforming space curves and a remark to a conjecture of Kleppe2009
- Author(s)
  那須弘和
- Organizer
  研究集会「射影多様体の幾何とその周辺2009」
- Place of Presentation
  高知大学理学部
- Year and Date
  2009-11-21
- Data Source
  KAKENHI-PROJECT-21740029
[Presentation] Introduction to Hilbert schemes of curves on a 3-fold
- Author(s)
  那須弘和
- Organizer
  Workshop in Algebraic Geometry in Sapporo
- Place of Presentation
  北海道大学理学部
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Introduction to Hilbert schemes of curves on a 3-fold
- Author(s)
  Hirokazu Nasu
- Organizer
  Workshop in Algebraic Geometry in Sapporo
- Place of Presentation
  北海道大学理学部
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming space curves lying on a smooth quartic surface
- Author(s)
  那須弘和
- Organizer
  シンポジウム「代数曲線論」第11回
- Place of Presentation
  首都大学東京南大沢キャンパス
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming space curves lying on an elliptic quartic surface
- Author(s)
  Hirokazu Nasu
- Organizer
  Fano多様体の最近の進展
- Place of Presentation
  京都大学数理解析研究所
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming space curves lying on a smooth quartic surface
- Author(s)
  Hirokazu Nasu
- Organizer
  シンポジウム「代数曲線論」第11回
- Place of Presentation
  首都大学東京南大沢キャンパス
- Invited
- Data Source
  KAKENHI-PROJECT-25220701
[Presentation] Obstructions to deforming space curves lying on an elliptic quartic surface
- Author(s)
  那須弘和
- Organizer
  Fano多様体の最近の進展
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] 非特異４次曲面上の空間曲線の変形障害とヒルベルトスキーム
- Author(s)
  那須弘和
- Organizer
  第4回代数曲面ワークショップ at 南大沢
- Place of Presentation
  首都大学東京南大沢キャンパス
- Data Source
  KAKENHI-PROJECT-25400048
[Presentation] Obstructions to deforming space curves and non-reduced components of the Hilbert scheme
- Author(s)
  那須弘和
- Organizer
  Algebra-Seminaret i Oslofjord-Regionen
- Place of Presentation
  Oslo and Akershus University College (ノルウェー)
- Invited
- Data Source
  KAKENHI-PROJECT-23740032
[Presentation] 非特異４次曲面上の空間曲線の変形障害とヒルベルトスキーム
- Author(s)
  Hirokazu Nasu
- Organizer
  第4回代数曲面ワークショップ at 南大沢
- Place of Presentation
  首都大学東京南大沢キャンパス
- Invited
- Data Source
  KAKENHI-PROJECT-25220701

1. Mukai Shigeru (80115641)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. UEDA Tetsuo (10127053)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. NAKAYAMA Noboru (10189079)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. NAMIKAWA Yoshinori (80228080)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. KAWAGUCHI Shu (20324600)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. ABE Takeshi (90362409)

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7. OHASHI Hisanori (40547006)

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8. MA Shohei (80633255)

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9. 中島啓 (00201666)

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10. 吉川謙一 (20242810)

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11. 小木曽啓示 (40224133)

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12. 森脇淳 (70191062)

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13. 宍倉光広 (70192606)

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14. SANNAI Akiyoshi

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15. WANDEL Marte

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16. KIM Kyounghee

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17. DOLGACHEV Igor

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18. ALLCOCK Daniel

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19. HEDEN Isac

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Nasu Hirokazu 那須 弘和

NASU Hirokazu 那須 弘和

Research Projects

Research Products

Co-Researchers

Explicit study on Hilbert schemes of higher dimensional algebraic varieties using intermediate surfaces and morphismsPrincipal Investigator

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Review Section

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Study on Hilbert schemes from the viewpoint of morphisms of algebraic varietiesPrincipal Investigator

Principal Investigator

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Review Section

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Obstructions to deforming curves on algebraic varieties and a study on their Hilbert schemesPrincipal Investigator

Principal Investigator

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Deformations of curves on a uniruled variety and their obstructionsPrincipal Investigator

Principal Investigator

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Moduli spaces of algebraic varieties and self-morphisms

Principal Investigator

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Deformations of curves on a higher dimensionalalgebraic variety and their obstructionsPrincipal Investigator

Principal Investigator

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Research Institution

Deformations of curves on a higher dimensional algebraic variety and their obstructionsPrincipal Investigator

Principal Investigator

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[Journal Article] Primary obstructions to deforming embedded curves and an application to the Hilbert scheme of space curves2023

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[Journal Article] Obstructions to deforming space curves lying on a smooth cubic surface2022

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[Journal Article] Obstructions to deforming curves on an Enriques-Fano 3-fold2021

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NAID

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[Journal Article] Obstructions to deforming curves on an Enriques-Fano 3-fold2020

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[Journal Article] Corrigendum to “Obstructions to deforming curves on a 3-fold, III: Deformations of curves lying on a K3 surface”2020

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[Journal Article] Obstructions to deforming curves on a prime Fano 3‐fold2019

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[Journal Article] 書評 R. Hartshorne: Deformation Theory (Grad. Texts in Math., 257)2019

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Nasu Hirokazu 那須弘和

NASU Hirokazu 那須弘和