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2008 Fiscal Year Annual Research Report

幾何学と可積分系理論の融合と発展

Research Project

Project/Area Number 19204006
Research InstitutionTohoku University

Principal Investigator

宮岡 礼子  Tohoku University, 大学院・理学研究科, 教授 (70108182)

Co-Investigator(Kenkyū-buntansha) 小谷 元子  東北大学, 大学院・理学研究科, 教授 (50230024)
Keywords幾何学 / 可積分系 / 量子コホモロジー / パンルヴェ方程式 / 特異点 / 離散幾何学 / 双曲空間 / クレパント解消予想
Research Abstract

宮岡はG2軌道の幾何学をケーラー構造の立場から明らかにし, 等径超曲面の分類に生かした. また代数的完備極小曲面の除外値数と完全分岐値数の評価を根本的に改良し, シャープな評価であることを具体例で示した. 小谷は離散幾何の立場で発見されたK4結晶構造を応用の観点から調べた. 梅原・山田は波面の幾何において, 特異点の判定, 完備性を調べた. 藤岡は曲線の可積分な運動について考察した. 長友はグラスマン多様体への調和写像めモジュライ空間を記述した。石川はシンプレクティック空間内の特異点をもつ集合の不変量を発見し, また新たな特異点を発見した. 田丸は非コンパクト型対称空間上の等質なhyperpolar foliationの分類を行った. 大仁田は複素2次超曲面内のコンパクト極小ラグランジュ部分多様体のハミルトン安定性を研究した. W. Rossmanは可積分系の立場から、双曲空問内の平坦曲面を離散化した. またM.GuestはMinkowski空間の空間的な平均曲率一定曲面とquantum cohomologyの関係を研究し, 川久保は3次元空間形内の局所誘導階層の進行波解を構成した.
梶原は1+1次元離散ソリトン系の具体的な解の構成法を確立し, 可解カオス系と, トロピカル幾何と関連づけた. さらに, q-パンルヴェ系の「対称化」を議論し, ある現象の背景を解明した. 中屋敷は多変数のシグマ関数と普遍グラスマン多様体のタウ関数との関係を明らかにした. 岩崎はパンルヴェVI方程式の考察から, パンルヴェ方程式は, わずかでも古典特殊解の外に出ればカオス的になっている可能性を示した。
M.Guestはある量子コホモロジーと多重調和写像の簡に関する例の構成を行った. 入谷は高種数のGromov-Witten理論に対するクレパント解消予想, および双有理射の下での量子コホモロジーの変化についての知見を得た.

  • Research Products

    (50 results)

All 2009 2008

All Journal Article (41 results) (of which Peer Reviewed: 34 results) Presentation (8 results) Book (1 results)

  • [Journal Article] The Dorfmeister-Neher Theorem on isoparametric hypersurfaces2009

    • Author(s)
      R. Miyaoka
    • Journal Title

      Osaka Jour. Math 46

      Pages: To appear

    • Peer Reviewed
  • [Journal Article] Classification of isoparametfic hypersurfaces ; Geometry and Something2009

    • Author(s)
      R. Miyaoka
    • Journal Title

      Geometry and Something (福岡大学)

      Pages: 16-45

  • [Journal Article] New metallic carbon crystal2009

    • Author(s)
      M. Kotani
    • Journal Title

      Phys. Rev. Lett. 102(to appear)

    • Peer Reviewed
  • [Journal Article] A_k singularities of wave fronts2009

    • Author(s)
      M. Umehara
    • Journal Title

      Math. Proceedings of Cambridge Philosophical Society (to appear)

  • [Journal Article] Complete bounded null curves immersed in C^3 and SL(2, C}2009

    • Author(s)
      K. Yamada
    • Journal Title

      Calculus of Variations and DE (To appear)

    • Peer Reviewed
  • [Journal Article] Ultradiscretization of a two-dimensional chaotic map associated, with the Hesse cubic curve2009

    • Author(s)
      K. Kajiwara
    • Journal Title

      Kyushu J. Math. (To appear)

    • Peer Reviewed
  • [Journal Article] q-Painleve方程式の対称化2009

    • Author(s)
      梶原健司
    • Journal Title

      九州大学応用力学研究所研究集会報告20ME-S7「非線形波動の数理と物理」

      Pages: 21-28

  • [Journal Article] On Lagrangian submanifolds in complex hyperquadrics obtained from isoparametric hypersurfaces2009

    • Author(s)
      Y. Ohnita
    • Journal Title

      RIMS講究録 1623

      Pages: 111-125

  • [Journal Article] On algebraic solutions to Painleve VI2009

    • Author(s)
      K. Iwasaki
    • Journal Title

      RIMS講究録別冊 (To appear)

    • Peer Reviewed
  • [Journal Article] Isolated periodic solutions to Painleve VI2009

    • Author(s)
      K. Iwasaki
    • Journal Title

      RIMS講究録別冊 (To appear)

    • Peer Reviewed
  • [Journal Article] Traveling wave solutions to the localized induction hierarchy in three-dimensional space forms2009

    • Author(s)
      S. Kawakubo
    • Journal Title

      Geometry and something (福岡大学)

      Pages: 90-98

  • [Journal Article] The Gauss map of pseudo-algebraic minimal surfaces2008

    • Author(s)
      R. Miyaoka
    • Journal Title

      Forum Mathematicum 20

      Pages: 1055-1069

    • Peer Reviewed
  • [Journal Article] Isoparametric Geometry and Related Fields2008

    • Author(s)
      R. Miyaoka
    • Journal Title

      Adv. Studies in Pure Math. 51

      Pages: 305-326

    • Peer Reviewed
  • [Journal Article] A_k singularities of wave fronts2008

    • Author(s)
      M. Umehara
    • Journal Title

      Kyushu Journal of Mathematics 62

      Pages: 259-280

    • Peer Reviewed
  • [Journal Article] Derived Schwarz map of the hypergeometric differential equation and a narallel family of flat fronts2008

    • Author(s)
      K. Yamada
    • Journal Title

      International J. of Mathematics 19

      Pages: 867-863

    • Peer Reviewed
  • [Journal Article] Singularities of Maximal surfaces2008

    • Author(s)
      K. Yamada
    • Journal Title

      Math. Zeit 259

      Pages: 259-280

    • Peer Reviewed
  • [Journal Article] Bonnet surfaces with non-flat normal bundle in the hyperbolic four-space2008

    • Author(s)
      A. Fujioka
    • Journal Title

      Far East Journal of Mathematical Sciences 30

      Pages: 381-387

    • Peer Reviewed
  • [Journal Article] Timelike surfaces with harmonic inverse mean curvature2008

    • Author(s)
      A. Fujioka
    • Journal Title

      Advanced Studies in Pure Mathematics 51

      Pages: 113-141

    • Peer Reviewed
  • [Journal Article] Motions of curves in the complex hyperbola and the Burgers hierarchy2008

    • Author(s)
      A. Fujioka
    • Journal Title

      Osaka Jour. Math 45

      Pages: 1057-1065

    • Peer Reviewed
  • [Journal Article] Quantum D-modules and generalized mirror transformations2008

    • Author(s)
      H. Iritani
    • Journal Title

      Topology 47

      Pages: 225-276

    • Peer Reviewed
  • [Journal Article] Twistor sections on the Wolf spaces2008

    • Author(s)
      Y. Nagatomo
    • Journal Title

      Transactions of the A.M.S 360

      Pages: 4497-4517

    • Peer Reviewed
  • [Journal Article] Bifurcations in symplectic space2008

    • Author(s)
      G. Ishikawa
    • Journal Title

      Banach Center Publ. 82

      Pages: 111-124

    • Peer Reviewed
  • [Journal Article] Global classification of curves on the symplectic plane2008

    • Author(s)
      G. Ishikawa
    • Journal Title

      Proc. IX Workshop on Real and Complex Singuralities

      Pages: 51-72

    • Peer Reviewed
  • [Journal Article] Generic singularities of implicit systems of first order differential equations on the plane2008

    • Author(s)
      G. Ishikawa
    • Journal Title

      Japanese J. Math. 3

      Pages: 93-119

    • Peer Reviewed
  • [Journal Article] Noncompact homogeneous Einstein manifolds attached to graded Liealgebras2008

    • Author(s)
      H. Tamaru
    • Journal Title

      Math. Z. 259

      Pages: 171-186

    • Peer Reviewed
  • [Journal Article] Lie groups locally isomorphic to generalized Heisenberg groups2008

    • Author(s)
      H. Tamaru
    • Journal Title

      Proc. AMS 136

      Pages: 3247-3254

    • Peer Reviewed
  • [Journal Article] Inflection points and double tangents on anti-convex curves in the real projective plane2008

    • Author(s)
      M. Umehara
    • Journal Title

      Tohoku Math. J. 60

      Pages: 149-181

    • Peer Reviewed
  • [Journal Article] Flat Mobius strips of given isotopy type in R3 whose centerlines are geodesic or lines of curvature2008

    • Author(s)
      M. Umehara
    • Journal Title

      Geom. Dedicata 134

      Pages: 109-130

    • Peer Reviewed
  • [Journal Article] Bilinearization and Casorati determinant solution to the non-autonomous discrete KdV equatio2008

    • Author(s)
      K. Kajiwara
    • Journal Title

      J.Phys.Soc.Jpn. 77

      Pages: 054004

    • Peer Reviewed
  • [Journal Article] Ultradiscretization of solvable one-dimensional chaotic maps2008

    • Author(s)
      K. Kajiwara
    • Journal Title

      J. Phys. A : Math. Theor. 41

      Pages: 395202(13)

    • Peer Reviewed
  • [Journal Article] E型アフィンワイル群対称性を持つ加法的離散Painleve方程式の超幾何解2008

    • Author(s)
      梶原健司
    • Journal Title

      九州大学応用力学研究所研究集会報告20ME-S7「非線形波動の数理と物理」

      Pages: Article No. 3

  • [Journal Article] Free field approach to solutions of the quantum Knizhnik-Zamolodchikov equations2008

    • Author(s)
      A. Nokayashiki
    • Journal Title

      Symmetry, Integrability and Geometry : Methods and Applications

      Pages: 049, 13

    • Peer Reviewed
  • [Journal Article] On Lagrangian submanifolds in complex hyperquadrics and isoparametric hypersurfaces in spheres2008

    • Author(s)
      Y. Ohnita
    • Journal Title

      Math. Z. 261

      Pages: 749-785

    • Peer Reviewed
  • [Journal Article] Finite branch solutions to Painleve VI around a fixed singular point2008

    • Author(s)
      K. Iwasaki
    • Journal Title

      Adv. Math. 217

      Pages: 1889-1934

    • Peer Reviewed
  • [Journal Article] Delaunay Ends of Constant Mean Curvature Surfaces2008

    • Author(s)
      W. Rossman
    • Journal Title

      Compositio Math. 144

      Pages: 186-220

    • Peer Reviewed
  • [Journal Article] Period problems for mean curvature one surfaces in H^32008

    • Author(s)
      W. Rossman
    • Journal Title

      Advanced Studies in Pure Math. 51

      Pages: 335-387

    • Peer Reviewed
  • [Journal Article] The spectra of Jacobi operators for constant mean curvaturetori of revolution in the 3-sphere2008

    • Author(s)
      W. Rossman
    • Journal Title

      Tokyo J. Math. 31

      Pages: 161-174

    • Peer Reviewed
  • [Journal Article] A loop group formulation for constant curvature submanifolds of pseudo-Euclidean space2008

    • Author(s)
      W. Rossman
    • Journal Title

      Taiwanese J. Math. 12

      Pages: 1739-1749

    • Peer Reviewed
  • [Journal Article] Constant Mean Curvature Surfaces in Euclidean and Minkowski three spaces2008

    • Author(s)
      W. Rossman
    • Journal Title

      J. Geom. Symm. Phys. 12

      Pages: 95-103

    • Peer Reviewed
  • [Journal Article] Kirchhoff elastic rods in three-dimensional space forms2008

    • Author(s)
      S. 川久保
    • Journal Title

      J. Math. Soc. Japan 60

      Pages: 551-582

    • Peer Reviewed
  • [Journal Article] Eulerの弾性由線とKirchhoff弾性棒2008

    • Author(s)
      S. Kawakubo
    • Journal Title

      RIMS講究録 1608

      Pages: 105-117

  • [Presentation] Harmonic maps and the beauty of diamond2009

    • Author(s)
      R. Miyaoka
    • Organizer
      連携幾何セミナー
    • Place of Presentation
      沖縄科学技術研究機構
    • Year and Date
      2009-01-29
  • [Presentation] 調和写像とダイヤモンド格子--その美しさの秘密--2009

    • Author(s)
      R. Miyaoka
    • Organizer
      女性先端研究者セミナーI
    • Place of Presentation
      奈良女子大学
    • Year and Date
      2009-01-24
  • [Presentation] Geometry of wave front-Recent results in hypersurface geometry2008

    • Author(s)
      R. Miyaoka
    • Organizer
      第4回日中友好幾何学研究集会
    • Place of Presentation
      Chern研究所,南開大学
    • Year and Date
      2008-12-24
  • [Presentation] 波面の幾何学の変遷2008

    • Author(s)
      R. Miyaoka
    • Organizer
      大阪大学談話会
    • Place of Presentation
      大阪大学
    • Year and Date
      2008-11-10
  • [Presentation] G_2軌道の幾何学2008

    • Author(s)
      R. Miyaoka
    • Organizer
      愛媛大学談話会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2008-09-11
  • [Presentation] Geometric structure of G_2 orbits2008

    • Author(s)
      R. Miyaoka
    • Organizer
      東工大流動機構セミナー
    • Place of Presentation
      東工大
    • Year and Date
      2008-08-04
  • [Presentation] Geometry of G_2 orbits2008

    • Author(s)
      R. Miyaoka
    • Organizer
      葉山国際研究集会
    • Place of Presentation
      湘南国際村
    • Year and Date
      2008-07-15
  • [Presentation] Geometry of G_2 orbits2008

    • Author(s)
      R. Miyaoka
    • Organizer
      International Conference on Differential Geometry
    • Place of Presentation
      中国科学技術大学
    • Year and Date
      2008-05-23
  • [Book] Survey on Geometry and Integrable Systems2008

    • Author(s)
      R. Miyaoka
    • Total Pages
      510
    • Publisher
      Adv. Studies Pure Math. {\bf 51}

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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