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New development of harmonic maps

Research Project

Project/Area Number 21540207
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Global analysis
Research InstitutionTohoku University

Principal Investigator

URAKAWA Hajime  東北大学, 国際教育院, 教授 (50022679)

Co-Investigator(Kenkyū-buntansha) ICHIYAMA Toshiyuki  亜細亜大学, 経済学部, 教授 (70213014)
ITOH Jinichi  熊本大学, 教育学部, 教授 (20193493)
OBATA Nobuaki  東北大学, 大学院・情報科学研究科 (10169360)
Co-Investigator(Renkei-kenkyūsha) INOGUCHI Junichi  山形大学, 理学部, 准教授 (40309886)
HIAI Fumio  東北大学, 大学院・情報科学研究科, 教授 (30092571)
Project Period (FY) 2009 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords調和写像 / 2-調和写像 / 2-ヤング・ミルズ場 / 非正曲率 / コンパクト・リー群 / エネルギー / 2-エネルギー / 完備リーマン多様体 / コンパクト・対称空間 / ラグランジアン部分多様体 / 一般化B.Y. Chen予想 / 非正曲率多様体 / バブリング理論 / mエネルギー / 複素射影空間 / 一般化B.Y.Chen予想 / 平均曲率ベクトル場 / 除去可能特異点定理 / サイバーグ・ウィッテン方程式 / コンパクト性定理 / 平坦多様体 / レイ・シンガーのゼータ関数 / フルヴィッツのゼータ関数 / 2-ヤング・ミルズ接続
Research Abstract

In 1986, the concept of the bi-harmonic map which is an extension of harmonic maps was introduced. We raised the new notion of the bi-Yang-Mills field, which is an analog of the bi-harmonic map, and showed its isolation phenomena. That is, bi-Yang-Mills fields with some square-integral norm over compact manifolds with positive Ricci curvature must be Yang-Mills fields. We showed bi-harmonic maps which have a bounded square-integral norm must be harmonic if the target space has non-positive curvature. We classified all the bi-harmonic maps for cases where the target space is a compact Lie group or compact symmetric spaces.

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (44 results)

All 2013 2012 2011 2010 2009 Other

All Journal Article (30 results) (of which Peer Reviewed: 19 results) Presentation (11 results) (of which Invited: 2 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Biharmonic submanifolds in a Riemannian manifold with non-positive curvature2013

    • Author(s)
      H. Urakawa and N. Nakauchi
    • Journal Title

      Results Math

      Volume: Vol. 63 Issue: 1-2 Pages: 467-474

    • DOI

      10.1007/s00025-011-0209-7

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic hypersurfaces in a Riemannian manifold with non-positive curvature2013

    • Author(s)
      H.Urakawa and N. Nakauchi
    • Journal Title

      Ann. Global Anal. Geom

      Volume: Vol. 40 Issue: 2 Pages: 125-131

    • DOI

      10.1007/s10455-011-9249-1

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic Lagrangian submanifolds in Kaehler manifolds2013

    • Author(s)
      Hajime Urakawa
    • Journal Title

      Glasgow Mathematical Journal

      Volume: 55 Issue: 2 Pages: 465-480

    • DOI

      10.1017/s0017089512000730

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic maps into a Riemannian manifold of non-positive curvature2013

    • Author(s)
      Hajime Urakawa
    • Journal Title

      Geometriae Dedicata

      Volume: 164 Issue: 1 Pages: 1-10

    • DOI

      10.1007/s10711-013-9854-1

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic maps into compact Lie groups and integrable systems2013

    • Author(s)
      Hajime Urakawa
    • Journal Title

      Hokkaido Mathematical Journal

      Volume: 42 Pages: 1-26

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic maps into symmetric spaces and integrable systems2013

    • Author(s)
      Hajime Urakawa
    • Journal Title

      Hokkaido Mathematical Journal

      Volume: 42 Pages: 1-28

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 「教育数学の構築」を目指して2012

    • Author(s)
      浦川 肇
    • Journal Title

      数理解析研究所講究録

      Volume: 1801 Pages: 20-30

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Biharmonic submanifolds in a Riemannian manifold with non-positive curvature2012

    • Author(s)
      H.Urakawa
    • Journal Title

      Results in Math.

      Volume: (未定)(掲載決定)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic maps into compact Lie groups and symmetric spaces, Proceedings Amer2011

    • Author(s)
      H. Urakawa
    • Journal Title

      Institute Physics

      Volume: Vol.1329 Pages: 246-263

    • DOI

      10.1063/1.3546089

    • Related Report
      2012 Final Research Report
  • [Journal Article] The geometry of biharmonic maps, Contemporary Mathematics2011

    • Author(s)
      H. Urakawa
    • Journal Title

      Amer. Math. Soc

      Volume: Vol. 542 Pages: 159-175

    • Related Report
      2012 Final Research Report
  • [Journal Article] Computer visions for the eigenvalue problems of embedded surfaces and plane domains, Annal2011

    • Author(s)
      H. Urakawa, and M. Jumonji
    • Journal Title

      Stiintifice Ale Universitaii "Al. I. Cuza" Din Iasi

      Volume: Vol. 57 Pages: 125-136

    • Related Report
      2012 Final Research Report
  • [Journal Article] Computer visions for the eigenvalue problems of embedded surfaces and plane domains2011

    • Author(s)
      H.Urakawa
    • Journal Title

      Analele Stiintifice Ale Universitatii Al.I.Cuza Din Iasi (Serie Noua) Matematica

      Volume: 57 Pages: 125-136

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cut loci and conjugate loci on Liouville surface2011

    • Author(s)
      J.Itoh
    • Journal Title

      Manuscripta Math.

      Volume: 136 Issue: 1-2 Pages: 115-141

    • DOI

      10.1007/s00229-011-0433-1

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quasigeodesics and farthest points on convex surfaces2011

    • Author(s)
      J.Itoh
    • Journal Title

      Advances in Geometry

      Volume: 11 Issue: 4 Pages: 571-584

    • DOI

      10.1515/advgeom.2011.033

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic maps into compact Lie groups, and symmetric spaces2011

    • Author(s)
      H.Urakawa
    • Journal Title

      American Institute of Physics, Conference Proceedings

      Volume: 1329 Pages: 246-263

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biharmonic hypersurfaces in a Riemannian manifold with non-positive curvatvire2011

    • Author(s)
      H.Urakawa
    • Journal Title

      Annals of Global Analysis and Geometry

      Volume: 未定(発表受理印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The geometry of biharmonic maps2011

    • Author(s)
      H.Urakawa
    • Journal Title

      Contemporary Mathematics, American Mathematical Society

      Volume: 未定(発表受理印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Classifications and isolation phenomena of biharmonic maps andbi-Yang-Mills fields2011

    • Author(s)
      H.Urakawa
    • Journal Title

      Note di Matematica

      Volume: 未定(発表受理印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Projectively flat connections and flat connections on homogeneous spaces2010

    • Author(s)
      H. Urakawa
    • Journal Title

      Hokkaido Math. J.

      Volume: Vol. 39 Pages: 139-155

    • Related Report
      2012 Final Research Report
  • [Journal Article] Classifications and isolation phenomerna of bi-harmonic maps andbi-Yang-Mills fields2010

    • Author(s)
      H. Urakawa, T. Ichiyama and J.Inoguchi
    • Journal Title

      Note di Matematica

      Volume: Vol. 30 Pages: 15-48

    • Related Report
      2012 Final Research Report
  • [Journal Article] Affine Weyl Groups and the Boundary Value Eigenvalue Problems of the Laplacian2010

    • Author(s)
      H. Urakawa and Y. Hosikawa
    • Journal Title

      Interdisciplinary Information Sciences

      Volume: 16 Issue: 1 Pages: 93-109

    • DOI

      10.4036/iis.2010.93

    • NAID

      130000250325

    • ISSN
      1340-9050, 1347-6157
    • Related Report
      2012 Final Research Report
  • [Journal Article] Proiectively flat connections and flat connections on homogeneous spaces2010

    • Author(s)
      H.Urakawa
    • Journal Title

      Hokkaido Mathematical Journal

      Volume: 39 Pages: 139-155

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Affine Weyl groups and the boundary value eigenvalue problems of the Laplacian2010

    • Author(s)
      H.Urakawa
    • Journal Title

      Interdisciplinary Information Sciences

      Volume: 16 Pages: 93-109

    • NAID

      110009794882

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bi-harmonic maps and bi-Yang-Mills fields2009

    • Author(s)
      H. Urakawa, T. Ichiyama and J. Inoguchi
    • Journal Title

      Note di Matematica

      Volume: 28 Pages: 233-275

    • Related Report
      2012 Final Research Report
  • [Journal Article] Convergence Rates to Optimal Distribution of the Boltzmann Machine on Simulated Annealing2009

    • Author(s)
      H. Urakawa
    • Journal Title

      Interdisciplinary Information Sciences

      Volume: 15 Issue: 2 Pages: 291-299

    • DOI

      10.4036/iis.2009.291

    • NAID

      110007317875

    • ISSN
      1340-9050, 1347-6157
    • Related Report
      2012 Final Research Report
  • [Journal Article] Compactness of the moduli space of solutions of the Seiberg-Witten equations over higher dimensional Kaehler manifolds2009

    • Author(s)
      H. Urakawa
    • Journal Title

      Publ. Math.Debrecen

      Volume: Vol. 74 Pages: 433-480

    • Related Report
      2012 Final Research Report
  • [Journal Article] Ray-Singer zeta functions for compact flat manifolds2009

    • Author(s)
      H. Urakawa nad T. Sunada
    • Journal Title

      Contemporary Math. Amer. Math. Soc

      Volume: Vol. 484 Pages: 287-294

    • Related Report
      2012 Final Research Report
  • [Journal Article] Compactness of the moduli space of solutions of the Seiberg-Witten egations over higher dimensional compact Kaehler manifolds.2009

    • Author(s)
      H.Urakawa
    • Journal Title

      Publicatione Mathematicae Debrecen 74

      Pages: 433-480

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ray-Singer zeta function for compact flat manifolds2009

    • Author(s)
      T.Sunada, H.Urakawa
    • Journal Title

      Contemporary Mathematics, Amer. Math. Soc. 484

      Pages: 287-294

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Convergence rates to optimal distribution of the Boltzmann machine on simurated annealing2009

    • Author(s)
      H.Urakawa
    • Journal Title

      Interdisciplinary Information Sciences 15

      Pages: 291-299

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Geometry of biharmonic maps-existence, non-existenceand classification problems of proper biharmonic maps2012

    • Author(s)
      H. Urakawa
    • Organizer
      The 3^<rd> International Colloquium on Differential Geometry and its Related Topics
    • Place of Presentation
      Veliko Tarnovo Univ., Bulgaria
    • Year and Date
      2012-09-05
    • Related Report
      2012 Final Research Report
  • [Presentation] 非正曲率リーマン多様体への2-調和写像2012

    • Author(s)
      浦川肇・中内伸光
    • Organizer
      日本数学会
    • Place of Presentation
      東京理科大学神楽坂校舎
    • Year and Date
      2012-03-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] 2-調和写像の除去可能特異点定理とバブリング2012

    • Author(s)
      浦川肇・中内伸光
    • Organizer
      日本数学会
    • Place of Presentation
      東京理科大学神楽坂校舎
    • Year and Date
      2012-03-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] Geometry of biharmonic maps: L^2-rigidity, biharmonic Lagrangian submanifolds of Kaehler manifolds, and conformal change of metrics2012

    • Author(s)
      Hajime Urakawa
    • Organizer
      The 3rd International Colloquium on Differential Geometry and its Related Fields
    • Place of Presentation
      Veriko Tarnovo, Bulgaria
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Geometry of biharmonic maps-Chen's conjecture,biharmonic submanifolds of Kaehler manifods2012

    • Author(s)
      浦川 肇
    • Organizer
      多様体上の微分方程式
    • Place of Presentation
      金沢大学サテライトプラザ
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Biharmonic maps into a Riemannian manifold of non-positive curvature and B.Y. Chen's conjecture2011

    • Author(s)
      浦川 肇
    • Organizer
      松江微分幾何研究会
    • Place of Presentation
      島根大学
    • Year and Date
      2011-12-17
    • Related Report
      2012 Final Research Report
  • [Presentation] Biharmonic maps into a Riemannian manifold of non-positive curvature and B.Y. Chen's conjecture2011

    • Author(s)
      浦川 肇
    • Organizer
      金沢大域解析研究会
    • Place of Presentation
      金沢大学
    • Year and Date
      2011-11-10
    • Related Report
      2012 Final Research Report
  • [Presentation] Biharmonic maps into compact Lie groups and symmetric spaces, The "Alexandru Myller" Mathematical Seminar Centennial Conference2010

    • Author(s)
      H. Urakawa
    • Organizer
      Iasi University
    • Place of Presentation
      Romania
    • Year and Date
      2010-06-25
    • Related Report
      2012 Final Research Report
  • [Presentation] Geometry of biharmonic maps and harmonic maps2010

    • Author(s)
      H.Urakawa
    • Organizer
      Alexandru Myller Mathematical SeminarCentennial Conference
    • Place of Presentation
      ルーマニア、ヤシ大学
    • Year and Date
      2010-06-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] The geometry of biharmonic maps, A Harmonic Map Fest in honor of John C2009

    • Author(s)
      H. Urakawa
    • Organizer
      Wood's 60th Birthday, CagliariUniversity
    • Place of Presentation
      Italy
    • Year and Date
      2009-09-09
    • Related Report
      2012 Final Research Report
  • [Presentation] Geometry of bi-harmonic maps2009

    • Author(s)
      H.Urakawa
    • Organizer
      Conference of harmonic maps-in honor of Professor J.Wood in his sixtieth birthday
    • Place of Presentation
      Cagliari University, Italy
    • Year and Date
      2009-09-08
    • Related Report
      2009 Annual Research Report
  • [Book] ラプラシアンの幾何と有限要素法2009

    • Author(s)
      浦川肇
    • Total Pages
      272
    • Publisher
      朝倉書店
    • Related Report
      2012 Final Research Report 2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.math.is.tohoku.ac.jp/~urakawa

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.math.is.tohoku.ac.jp/~urakawa

    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2019-07-29  

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