Hasegawa Kazuyuki 長谷川和志

… Alternative Names

HASEGAWA Kazuyuki 長谷川和志

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Researcher Number	50349825
Other IDs
External Links
Affiliation (Current)	2025: 金沢大学, 学校教育系, 教授
Affiliation (based on the past Project Information) *help	2015 – 2023: 金沢大学, 学校教育系, 教授 2009 – 2014: Kanazawa University, 学校教育系, 准教授 2008: Tokyo University of Science, 理学部, 助教
Review Section/Research Field	Principal Investigator Geometry / Basic Section 11020:Geometry-related Except Principal Investigator Geometry / Basic Section 11020:Geometry-related / Education on school subjects and activities
Keywords	Principal Investigator 四元数多様体 / ツイスターリフト / ツイスター空間 / 調和切断 / 部分多様体 / 運動量写像 / 錐的超複素多様体 / rigid c-map / supergravity c-map / c-射影構造 … More / 複素部分多様体 / 超複素多様体 / 包含的曲面 / twistor lift / twistor space / inclusive immersion / 四元数正則構造 … More Except Principal Investigator 可積分系 / 曲面 / 四元数的正則幾何 / ツイスター空間 / 極小曲面 / 共形写像 / ラグランジュ曲面 / クリフォード代数 / リーマン面 / 正則関数 / 変換 / 微分幾何学 / 幾何学 / 一般化された複素構造 / 四元数構造 / リー群 / Hopf多様体 / 局所共形ケーラー構造 / ユニモジュラー・リー環 / カルタン接続 / CR構造 / Vaisman構造 / 佐々木構造 / ユニモジュラー・リー群 / Schwarzの補題 / Lagrange曲面 / 表現公式 / 曲面論 / 微分幾何 / harmonic map / conformal map / minimal surface / ウィルモア曲面 / 調和写像 / 超共形曲面 / 四元数複素微分幾何 / 共形幾何 / アフィン微分幾何 / 部分多様体 / 正則写像 / ワイエルシュトラス表限公式 / 曲面の変換 / 超共形写像 / 抽象的思考 / 各教科の具体的思考 / 教員養成教育 / 免許制度 / 教授システム / 既有イメージの更新拡大 / 知識の範囲と量 / 既有知識 / 既有の授業イメージ / 知識の構造 / 解釈力 / 教員養成カリキュラム / 積分表示 / 共形 / ハミルトン的極小 / 平均曲率一定曲面 / 四元数 / 閉形式 / 周期 / 周期的曲面 Less

Complex geometric structures and their moduli on Lie groups and homogeneous spaces
- Principal Investigator
  
  長谷川敬三
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Osaka University
The research of quaternionic manifolds by using subamnifold geometryPrincipal Investigator
- Principal Investigator
  
  Kazuyuki Hasegawa
- Project Period (FY)
  2018 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Kanazawa University
The representation formulas for a surface of higher codimension and a submanifold and their application
- Principal Investigator
  
  Moriya Katsuhiro
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  University of Hyogo
  University of Tsukuba
The research of submaniolds in a quaternionic kaehler manifold based on the twistor programPrincipal Investigator
- Principal Investigator
  
  Hasegawa Kazuyuki
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Kanazawa University
Property of super-conformal maps inherited from holomorphic maps and its application
- Principal Investigator
  
  MORIYA Katsuhiro
- Project Period (FY)
  2013 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  University of Tsukuba
Twistor lifts for submanifolds in quaternion Kaehler manifolds and quaternionic complex differential geometryPrincipal Investigator
- Principal Investigator
  
  HASEGAWA Kazuyuki
- Project Period (FY)
  2011 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Kanazawa University
A Proposal for Teacher Training Program on Reasoning Abilities
- Principal Investigator
  
  YOSHIKAWA Kazuyoshi
- Project Period (FY)
  2011 – 2012
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Education on school subjects and activities
- Research Institution
  Kanazawa University
Study on periodic surfaces using their representations by integrals of conformal one-forms
- Principal Investigator
  
  MORIYA Katsuhiro
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  University of Tsukuba
Research of surfaces in four-dimensional Riemannian manifolds using their twistor liftsPrincipal Investigator
- Principal Investigator
  
  HASEGAWA Kazuyuki
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  Kanazawa University
  Tokyo University of Science

All 2024 2023 2022 2021 2020 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008

All Journal Article Presentation

[Journal Article] THE H/Q-CORRESPONDENCE AND A GENERALIZATION OF THE SUPERGRAVITY C-MAP2024
- Author(s)
  V. Cortes AND K. Hasegawa
- Journal Title
  
  Tohoku Math. J.
  
  Volume: 76 Issue: 2
- DOI
  10.2748/tmj.20221125
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Journal Article] Unimodular Sasaki and Vaisman Lie groups2023
- Author(s)
  Vicente Cortes and Keizo Hasegawa
- Journal Title
  
  Mathematische Zeitschrift
  
  Volume: 303 Issue: 4
- DOI
  10.1007/s00209-023-03233-6
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03248
[Journal Article] The quaternionic/hypercomplex-correspondence2021
- Author(s)
  V. Cortes and K.Hasegawa
- Journal Title
  
  Osaka J. Math.
  
  Volume: 58 Pages: 213-238
- NAID
  120006998393
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Journal Article] Twistor Lifts and Factorization for Conformal Maps from a Surface to the Euclidean Four-space2017
- Author(s)
  Kazuyuki Hasegawa, Katsuhiro Moriya
- Journal Title
  
  Advances in Applied Clifford Algebras
  
  Volume: 印刷中 Issue: 2 Pages: 1243-1262
- DOI
  10.1007/s00006-016-0728-0
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25400063, KAKENHI-PROJECT-17K05217, KAKENHI-PROJECT-15K04839
[Journal Article] A Nearly Kahler Submanifold with Vertically Pluri-Harmonic Lift2017
- Author(s)
  Kazuyuki Hasegawa
- Journal Title
  
  Hermitian-Grassmannian submanifolds. Proceedings of the 20th International Workshop on Hermitian Symmetric Spaces and Submanifolds. Springer Proceedings in Mathematics & Statistics
  
  Volume: 203 Pages: 49-58
- DOI
  10.1007/978-981-10-5556-0_5
- ISBN
  9789811055553, 9789811055560
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05217, KAKENHI-PROJECT-15K04839
[Journal Article] An inclusive immersion into a quaternionic manifold and its invariants2017
- Author(s)
  Kazuyuki Hasegawa
- Journal Title
  
  manuscripta mathematica
  
  Volume: 154 Issue: 3-4 Pages: 527-549
- DOI
  10.1007/s00229-017-0928-5
- NAID
  120006764684
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05217, KAKENHI-PROJECT-15K04839
[Journal Article] Extremal Lorentzian surfaces with null r-planar geodesics in space forms2015
- Author(s)
  K. HAsegawa, K.Miura
- Journal Title
  
  Tohoku Math. J.,
  
  Volume: 67 Pages: 611-634
- NAID
  130007961946
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K04839
[Journal Article] Twistor holomorphic affine surfaces and projective invariants2014
- Author(s)
  K. Hasegawa
- Journal Title
  
  SUT J. Math.
  
  Volume: 50 Pages: 325-341
- NAID
  120005649583
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-23540081
[Journal Article] The first Chern class and conformal area for a twistor holomorphic immersion2014
- Author(s)
  K. Hasegawa
- Journal Title
  
  Abh. Math. Semin. Univ. Hambg
  
  Volume: 84 Issue: 1 Pages: 67-83
- DOI
  10.1007/s12188-014-0089-3
- NAID
  120005418472
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-23540081, KAKENHI-PROJECT-25400063
[Journal Article] A Lorentzian surface in a four-dimensional manifold of neutral signature and its reflector lift2012
- Author(s)
  Hasegawa Kazuyuki
- Journal Title
  
  Journal of Geometry and Symmetry in Physics
  
  Volume: 26 Pages: 71-83
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540081
[Journal Article] Surfaces in four-dimensional hyperkaehler manifolds whose twistor lifts are harmonic sections2011
- Author(s)
  K.Hasegawa
- Journal Title
  
  Proc.Amer.Math.Soc.
  
  Volume: 139 Pages: 309-317
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] Surfaces in self-dual Einstein manifolds and their twistor lifts2011
- Author(s)
  Hasegawa Kazuyuki
- Journal Title
  
  Differential Geometry and its Application
  
  Volume: 29 Pages: S220-S226
- DOI
  10.1016/j.difgeo.2011.04.044
- NAID
  120003141808
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540081
[Journal Article] Surfaces in four-dimensiona hyperkaehler manifolds whose twistor lifts are harmonic sections2011
- Author(s)
  K Hasegawa
- Journal Title
  
  Proc. Amer. Math. Soc
  
  Volume: 139 Pages: 309-317
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] On surfaces of low genus whose twistor lifts are harmonic sections2010
- Author(s)
  K.Hasegawa
- Journal Title
  
  Journal of Geometry and Symmetry in Physics 17
  
  Pages: 35-43
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] Surfaces in hyperkaehler manifolds whose twistor lifts are harmonic sections2010
- Author(s)
  長谷川和志
- Journal Title
  
  研究集会「部分多様体幾何とリー群作用」報告集
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] On surfaces of low genus whose twistor lifts are harmonic sections2010
- Author(s)
  K. Hasegawa
- Journal Title
  
  Journal of Geometry and Symmetry in Physics
  
  Volume: 17 Pages: 35-43
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] Stability of twistor lifts for surfaces in four-dimensional manifolds as harmonic sections2009
- Author(s)
  K.Hasegawa
- Journal Title
  
  J.Geom.Phys. 59
  
  Pages: 1326-1338
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] Stability of twistorlifts for surfaces in four-dimensional manifolds as harmonic sections2009
- Author(s)
  K. Hasegawa
- Journal Title
  
  J. Geom. Phys
  
  Volume: 59 Pages: 1326-1338
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] A generalization of Cartan's identities for isoparametric hypersurfaces and its applications2008
- Author(s)
  N Abe and K Hasegawa
- Journal Title
  
  Result. Math
  
  Volume: 52 Pages: 197-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Journal Article] A generalization of Cartan's identities for isoparametric hypersurfaces and its applications2008
- Author(s)
  N. Abe and K. Hasegawa
- Journal Title
  
  Result. Math 52
  
  Pages: 197-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023
- Author(s)
  長谷川和志
- Organizer
  部分多様体幾何とリー群作用2023
- Invited
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023
- Author(s)
  K。Hasegawa
- Organizer
  第29回複素幾何シンポジウム
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] Unimodular Sasaki and Vaisman Lie Geoups2023
- Author(s)
  長谷川敬三
- Organizer
  第２９回複素幾何学シンポジウム (金沢)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03248
[Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023
- Author(s)
  K. Hasegawa
- Organizer
  Pure and Applied Differentila Geometry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] 四元数/超複素-対応2022
- Author(s)
  長谷川和志
- Organizer
  部分多様体幾何とリー群作用2021
- Invited
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] Sasaki and CR Lie groups - construction and classification problems2021
- Author(s)
  Keizo Hasegawa
- Organizer
  Special Geometry, Mirror Symmetry and Integral Systems (Waseda University, Toyko)
- Data Source
  KAKENHI-PROJECT-21K03248
[Presentation] The quaternionic/hypercomplex-correspondence and its converse2021
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Special Geometry, Mirror Symmetry and Integrable Systems
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] The quaternionic/hypercomplex-correspondence-2021
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  The 6th Workshop "Complex geometry and Lie groups"
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] The quaternionic/hypercomplex-correspondence and its converse2021
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Special Geometry, Mirror Symmetry and Integral Systems (Waseda University, Toyko)
- Data Source
  KAKENHI-PROJECT-21K03248
[Presentation] A construction of a hypercomplex manifold from a quaternionnic manifold-the quaternionic/hypercomplex-correspondence-2020
- Author(s)
  Kazuyuki Hasegawa and Vicente Cortes
- Organizer
  日本数学会　2020年度年会（会は中止だが，講演は成立）
- Data Source
  KAKENHI-PROJECT-18K03272
[Presentation] 四元数多様体への包含的はめこみとその不変量2017
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体の幾何学とその発展」～安部直人先生退職記念研究会～
- Place of Presentation
  東京理科大学森戸記念館（東京都・新宿区）
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] 四元数多様体への包含的はめこみとその不変量2017
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体の幾何学とその発展」
- Place of Presentation
  東京理科大学森戸記念館，東京都新宿区
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] An inclusive immersion in a quaternionic manifold and its invariants2017
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Differential Geometry, Banach center, Bedlewo, Poland
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05217
[Presentation] An inclusive immersion in a quaternionic manifold and its invariants2017
- Author(s)
  K. Hasegawa
- Organizer
  Differential Geometry
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] A quaternionic Willmore immersion2016
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Place of Presentation
  関西大学（大阪府・吹田市）
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] Twistor lifts and factorization for conformal maps of a surface Ⅱ2016
- Author(s)
  長谷川和志，守屋克洋
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  筑波大学，茨城県つくば市
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] 四元数多様体への包含的はめこみとその不変量2016
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体幾何とリー群作用2016」
- Place of Presentation
  東京理科大学森戸記念館（東京都・新宿区）
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] A quaternionic invariant for an inclusive immersion2016
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Place of Presentation
  関西大学（大阪府・吹田市）
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] Twistor lifts and factorization for conformal maps of a surface2016
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  The 20th International Workshop on Hermitian Symmetric Spaces and Submanifolds
- Place of Presentation
  大邱（大韓民国）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] An inclusive immersion in a quaternionic manifold and its invariants2016
- Author(s)
  K. Hasegawa
- Organizer
  Quaternion differential geometry and related topics
- Place of Presentation
  お茶の水女子大学, 東京都文京区
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] Twistor lifts and factorization for conformal maps of a surface I2016
- Author(s)
  長谷川和志
- Organizer
  日本数学会2016年度年会幾何学分科会一般講演
- Place of Presentation
  筑波大学（茨城県つくば市）
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] An inclusive immersion in a quaternionic manifold and its invariants2016
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Quaternion differential geometry and related topics
- Place of Presentation
  お茶の水女子大学（東京都・文京区）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] A quaternionic Willmore immersion2016
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Place of Presentation
  関西大学，大阪府吹田市
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] Twistor lifts and factorization for conformal maps of a surface Ⅰ2016
- Author(s)
  長谷川和志，守屋克洋
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  筑波大学，茨城県つくば市
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] 四元数多様体への包含的はめこみとその不変量2016
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体幾何とリー群作用2016」
- Place of Presentation
  東京理科大学森戸記念館，東京都新宿区
- Invited
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] Twistor lifts and factorization for conformal maps of a surface2016
- Author(s)
  K. Hasegawa, K. Moriya
- Organizer
  20th International Workshop on Hermitian Symmetric Spaces and Submanifolds
- Place of Presentation
  大邱, 大韓民国
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] A quaternionic invariant for an inclusive immersion2016
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Place of Presentation
  関西大学，大阪府吹田市
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] ツイスターリフトを持つアファインはめ込みに対する種々の射影不変量2015
- Author(s)
  長谷川和志
- Organizer
  統計多様体の幾何学とその周辺（６）
- Place of Presentation
  北海道大学
- Year and Date
  2015-03-09
- Invited
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] ツイスター正則なアファイン曲面と射影不変量,2015
- Author(s)
  長谷川和志
- Organizer
  関大微分幾何研究会
- Place of Presentation
  関西大学，大阪府吹田市
- Year and Date
  2015-06-21
- Invited
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] Twistor holomorphic affine surfaces and projective invariants2015
- Author(s)
  長谷川和志
- Organizer
  日本数学会２０１５年度年会幾何学分科会一般講演
- Place of Presentation
  明治大学駿河台キャンパスリバティタワー
- Year and Date
  2015-03-22
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] ツイスター正則なアファイン曲面について2015
- Author(s)
  長谷川和志
- Organizer
  統計多様体の幾何学とその周辺（６）
- Place of Presentation
  北海道大学
- Year and Date
  2015-03-10
- Invited
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] ツイスター正則なアファイン曲面と射影不変量2015
- Author(s)
  長谷川和志
- Organizer
  部分多様体幾何とリー群作用2015
- Place of Presentation
  東京理科大学，東京都新宿区
- Year and Date
  2015-09-07
- Invited
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] ツイスターリフトを持つアファインはめ込みに対する種々の射影不変量2015
- Author(s)
  長谷川和志
- Organizer
  統計多様体の幾何学とその周辺（６）
- Place of Presentation
  北海道大学
- Year and Date
  2015-03-09
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] ツイスター正則なアフィン曲面と射影不変量2015
- Author(s)
  長谷川和志
- Organizer
  第62回幾何学シンポジウム
- Place of Presentation
  東京理科大学（東京都千代田区）
- Year and Date
  2015-08-27
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] ツイスター正則なアファイン曲面について2015
- Author(s)
  長谷川和志
- Organizer
  統計多様体の幾何学とその周辺（６）
- Place of Presentation
  北海道大学
- Year and Date
  2015-03-09
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] Twistor holomorphic affine surfaces and projective invariants2015
- Author(s)
  長谷川和志
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  明治大学
- Year and Date
  2015-03-22
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] ツイスター正則なアファイン曲面と射影不変量2015
- Author(s)
  長谷川和志
- Organizer
  第62回幾何学シンポジウム
- Place of Presentation
  東京理科大学，東京都新宿区
- Year and Date
  2015-08-27
- Invited
- Data Source
  KAKENHI-PROJECT-15K04839
[Presentation] The first Chern class and conformal area for a twistor holomrphic immersion2014
- Author(s)
  長谷川和志
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  学習院大学
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Twistor holomorphic affine surfaces and projective invariants2014
- Author(s)
  長谷川和志
- Organizer
  四元数複素幾何学とその周辺
- Place of Presentation
  お茶の水女子大学
- Year and Date
  2014-09-04
- Invited
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] The first Chern class and conformal area for a twistor holomorphic immersion2014
- Author(s)
  長谷川和志
- Organizer
  日本数学会２０１４年度年会幾何学分科会一般講演
- Place of Presentation
  学習院大学
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] Twistor holomorphic affine surfaces and projective invariants2014
- Author(s)
  長谷川和志
- Organizer
  四元数複素幾何学とその周辺
- Place of Presentation
  お茶の水女子大学
- Year and Date
  2014-09-04
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] The first Chern class and conformal area for a twistor holomrphic immersion2013
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Differential Geometry and its Applications
- Place of Presentation
  Brno, Czech
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] The first Chern class and conformal area for a twistor holomorphic immersion2013
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  Differential Geometry and its Applications
- Place of Presentation
  Masaryk University, Bruno, Czech Republic
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] 球面内のツイスター正則な曲面に対する共形面積と法束の第一チャーン類について2013
- Author(s)
  長谷川和志
- Organizer
  筑波大学微分幾何学火曜セミナー
- Place of Presentation
  筑波大学
- Invited
- Data Source
  KAKENHI-PROJECT-25400063
[Presentation] ツイスターリフトが調和切断となる自己双対アインシュタイン多様体内の種数0 の曲面について2012
- Author(s)
  長谷川和志
- Organizer
  第59回幾何学シンポジウム
- Place of Presentation
  九州大学・福岡県
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Surfaces of genus zero in self-dual Einstein manifolds whose twistor lifts are harmonic sections2012
- Author(s)
  長谷川和志
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  東京理科大学（東京都）
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] ツイスターリフトが調和切断となる自己双対アインシュタイン多様体内の種数0の曲面について2012
- Author(s)
  長谷川和志
- Organizer
  つくば幾何学小研究会
- Place of Presentation
  筑波大学(茨城県)
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Lorentz surfaces in pseudo-Riemannian space forms of neutral signature with horizontal reflector lifts2012
- Author(s)
  長谷川和志、三浦幸平
- Organizer
  日本数学会年会幾何学分科会
- Place of Presentation
  東京理科大学（東京都）
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Lorentzian surfaces in pseudo-Riemannian space forms and their reflector lifts2012
- Author(s)
  Kazuyuki Hasegawa
- Organizer
  第8回日中友好幾何学研究集会
- Place of Presentation
  四川大学・成都・中国
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] ツイスターリフトが調和切断となる自己双対アインシュタイン多様体内の種数0 の曲面について2012
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体幾何とリー群作用2012」
- Place of Presentation
  東京理科大学・東京都
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Lorentz surfaces in pseudo-Riemannian space forms of neutral signature with horizontal reflector lifts2011
- Author(s)
  Hasegawa Kazuyuki
- Organizer
  The 13th International Conference "Geometry, Integrability and Quantization"
- Place of Presentation
  ブルガリア・ヴァルナ
- Data Source
  KAKENHI-PROJECT-23540081
[Presentation] Surfaces of genus zero in self-dual Einstein manifolds and their twistor lifts2010
- Author(s)
  K.Hasegawa
- Organizer
  International Conference Differential Geometry and its Applications
- Place of Presentation
  マサリスク大学(チェコ・ブルノ)
- Year and Date
  2010-08-28
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] Surfaces of genus zero in self-dual Einstein manifolds and their twistor lifts2010
- Author(s)
  K. Hasegawa
- Organizer
  International Conference "Differential Geometry andits Applications"
- Place of Presentation
  ブルノ(チェコ)
- Year and Date
  2010-08-28
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] Surfaces of genus zero in self-dual Einstein manifolds and their twistor lifts2010
- Author(s)
  K.Hasegawa
- Organizer
  International Conference"Differential Geometry and its Applications"
- Place of Presentation
  マサリスク大学(ブルノ・チェコ)
- Year and Date
  2010-08-28
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] Surfaces in hyperkaehler manifolds whose twistor lifts are harmonic sections2009
- Author(s)
  長谷川和志
- Organizer
  研究集会"部分多様体幾何とリー群作用"
- Place of Presentation
  東京理科大学(東京都)
- Year and Date
  2009-09-08
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] Surfaces in hyperkaehler manifolds whose twistor lifts are harmonic sections2009
- Author(s)
  長谷川和志
- Organizer
  研究集会「部分多様体幾何とリー群作用」
- Place of Presentation
  東京理科大学森戸記念館(東京都)
- Year and Date
  2009-09-08
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] On low genus surfaces whose twistor lifts are harmonic sections2009
- Author(s)
  K. Hasegawa
- Organizer
  The 11th International Conference "Geometry, Integrability and Quantization"
- Place of Presentation
  バルナ(ブルガリア)
- Year and Date
  2009-06-05
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] On low genus surfaces whose twistor lifts are harmonic sections2009
- Author(s)
  長谷川和志
- Organizer
  日本数学会2009年度年会
- Place of Presentation
  東京大学
- Year and Date
  2009-03-26
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] Surfaces in four-dimensional Euclidean space whose twistor lifts are harmonic sections2009
- Author(s)
  長谷川和志
- Organizer
  日本数学会秋季総合分科会幾何学分科会
- Place of Presentation
  大阪大学(大阪府)
- Year and Date
  2009-09-02
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] On low genus surfaces whose twistor lifts are harmonic sections2009
- Author(s)
  K.Hasegawa
- Organizer
  The 11th International Conference "Geometry, Integrability and Quantization"
- Place of Presentation
  (ブルガリア)・ヴァルナ
- Year and Date
  2009-06-05
- Data Source
  KAKENHI-PROJECT-20740046
[Presentation] On low genus surfaces whose twistor lifts are harmonic sections The llth International Conference Geometry2009
- Author(s)
  K.Hasegawa
- Organizer
  Integrability and Quantization
- Place of Presentation
  パノラマホテル(ブルガリア・バルナ)
- Year and Date
  2009-06-05
- Data Source
  KAKENHI-PROJECT-20740046

1. MORIYA Katsuhiro (50322011)

# of Collaborated Projects: 6 results

# of Collaborated Products: 4 results
2. TSUKADA Kazumi (30163760)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. KUROSU Sanae (70457844)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. YOSHIKAWA Kazuyoshi (90345645)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. YAMAMOTO Taku (10293325)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. TAKEI Wataru (70322112)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. ETHO Nozomu (60345642)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. OJIMA Kyoko (20293326)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 大仁田義裕 (90183764)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 長谷川敬三 (00208480)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
11. 後藤竜司 (30252571)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 入江博 (30385489)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 糟谷久矢 (80712611)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. LESCHKE Katrin

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Hasegawa Kazuyuki 長谷川 和志

HASEGAWA Kazuyuki 長谷川 和志

Research Projects

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Complex geometric structures and their moduli on Lie groups and homogeneous spaces

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The research of quaternionic manifolds by using subamnifold geometryPrincipal Investigator

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The representation formulas for a surface of higher codimension and a submanifold and their application

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The research of submaniolds in a quaternionic kaehler manifold based on the twistor programPrincipal Investigator

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Property of super-conformal maps inherited from holomorphic maps and its application

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Twistor lifts for submanifolds in quaternion Kaehler manifolds and quaternionic complex differential geometryPrincipal Investigator

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A Proposal for Teacher Training Program on Reasoning Abilities

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Study on periodic surfaces using their representations by integrals of conformal one-forms

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Research of surfaces in four-dimensional Riemannian manifolds using their twistor liftsPrincipal Investigator

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[Journal Article] THE H/Q-CORRESPONDENCE AND A GENERALIZATION OF THE SUPERGRAVITY C-MAP2024

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[Journal Article] Unimodular Sasaki and Vaisman Lie groups2023

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[Journal Article] The quaternionic/hypercomplex-correspondence2021

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[Journal Article] Twistor Lifts and Factorization for Conformal Maps from a Surface to the Euclidean Four-space2017

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[Journal Article] A Nearly Kahler Submanifold with Vertically Pluri-Harmonic Lift2017

Hasegawa Kazuyuki 長谷川和志

HASEGAWA Kazuyuki 長谷川和志