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Yamada Kotaro  山田 光太郎

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… Alternative Names

KOTARO Yamada  山田 光太郎

YAMADA Kotaro  山田 光太朗

山田 光太郎  ヤマダ コウタロウ

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Researcher Number 10221657
Other IDs
External Links
Affiliation (Current) 2025: 東京科学大学, 理学院, 教授
Affiliation (based on the past Project Information) *help 2015 – 2024: 東京工業大学, 理学院, 教授
2015: 東工大, 大学院理学研究科, 教授
2012 – 2015: 東京工業大学, 理工学研究科, 教授
2014: 東京工業大学, 大学院理工学研究科, 教授
2009 – 2012: Tokyo Institute of Technology, 大学院・理工学研究科, 教授 … More
2000 – 2008: Kyushu University, Faculty of Math., Prof., 大学院・数理学研究院, 教授
2005 – 2006: 九州大学, 大学院数理学研究院, 教授
2005: 九州大学, 大学院・数理研究院, 教授
2003: KYUSHU UNIV., MATHEMATICS, PROFESSOR, 数理学, 教授
2002: 九州大学, 大学院・数理学, 教授
2002: Kyushu University Grad. Sch. Math. Professor, 大学院・数理科学研究院, 教授
2000 – 2001: 九州大学, 大学院・数理学研究科, 教授
2000: 九州大学, 大学院・数理学研究科, 助教授
1996 – 2000: Kumamoto University, College of Liberal Arts and Sciences, Associate Professor, 理学部, 助教授
1999: Constant Mean Curvature, Kumamoto Univ., Associate Professor, 教養部, 助教授
1994 – 1996: 熊本大学, 教養部, 助教授
1993: 熊本大学, 教養部, 講師
1990: 熊本大学, 教養部, 講師 Less
Review Section/Research Field
Principal Investigator
Geometry / Geometry / Basic Section 11020:Geometry-related
Except Principal Investigator
Geometry / Geometry / 解析学 / Basic Section 11020:Geometry-related / Global analysis / General mathematics (including Probability theory/Statistical mathematics)
Keywords
Principal Investigator
特異点 / ワイエルストラス表現 / 極小曲面 / ワイエルストラス表現公式 / 極大曲面 / フロント / CMC-1曲面 / 解析的延長 / swallowtail / cuspidal cross cap … More / cuspidal edge / Weierstrass representation / 定平均曲率曲面 / 全曲率 / 零平均曲率曲面 / ローレンツ多様体 / 特異点の微分幾何 / ワイエルストラス型表現公式 / 平均曲率 / Weierstrass表現 / 平均曲率一定曲面 / ローレンツ幾何 / 微分幾何一般(含種々の幾何構造、離散幾何) / 平均曲率一定鏡面 / ローレンツ空間型 / 曲面・調教k面 / 退化点 / 曲面・超曲面 / 解析的拡張 / 直線定理 / 微分幾何学 / flat surface / maximal surface / front / singularities / オサーマン型不等式 / 平坦フロント / ワイエルストラス型表現 / 平坦曲面 / Total curvature / Osserman inequality / Gauss map / CMC-1 surface / minimal surfaces / 可積分系 / 常微分方程式 / モノドロミー問題 / フラックス / 低平均曲率曲面 / キーワード8 / キーワード7 / 非コンパクト型対称空間 / オッサーマンの不等式 / ガウス写像 / 折り目特異点 / ミンコフスキー時空 / 波面 / ド・ジッター空間の平均曲率1曲面 / 因果特性の変化 / CMC-1 面 / ド・ジッター空間 / ミンコフスキー空間 / 型変化 / comnplet / conformally flat / duality / Gauss-Bonnet formula / front bundles / coherent tangent bundles / wave fronts / 超幾何微分方程式 / 3ノイド / 共形平坦計量 / 双曲計量 / ガウス・ボンネの定理 / CMC-1 曲面 / 双曲空間の平坦波面 / カスプ辺 / 交叉帽子 / 連接接束 / 特異曲率 / 曲面 / 特異点に微分幾何 / ド・ジッター空間のCMC1曲面 / 双曲空間の平坦曲面 / 微分幾何 / Gauss写像 / 平均曲率一定の曲面 … More
Except Principal Investigator
特異点 / 極小曲面 / ガウス写像 / ガウス曲率 / 可積分系 / de Rham cohomology / リーマン多様体 / 部分多様体 / 平均曲率一定曲面 / 超曲面 / 曲面 / 微分幾何学 / 波面 / 平均曲率 / 曲線 / 等径超曲面 / 双曲空間 / 統計多様体 / 離散化 / アレクサンドロフ空間 / Gauss map / minimal surface / conformally flat hypersurface / 調和写像 / homology / 一般超幾何関数 / confluence / de Rham theory / hypergeometric / 半正定値計量 / 変曲点 / 極大曲面 / 実超曲面 / 共形平坦超曲面 / 交点理論 / 四元数ケーラー多様体 / ツイスター空間 / 四元数多様体 / 反自己双対接続 / ベクトル束 / モジュライ空間 / Gaussian curvature / 双曲型空間 / ワイエルストラス型表現公式 / integrable systems / 3次元球面 / ユークリッド空間 / constant mean curvature / Morse指数 / 平均曲率一定 / モース指数 / エントロピー / Painleve equation / generalized Airy function / Painleve方程式 / 曲率 / intersection theory / general hypergeometric function / 交点数 / flat basis / cohomology / integrable system / 二重調和部分多様体 / 有限型部分多様体 / constant mean curvature surface / Airy関数 / Grassmann多様体 / stratification / regular element / Lie algebra / special function / Differential Geometry / フロント / 平均曲率フロー / Riemannian manifold / 安定性 / 量子コホモロジー論 / アインシュタイン計量 / Yang-Mills接続 / 調和写像論 / 特異点のモデュライ / G_2軌道 / 幾何学 / パンルヴェ方程式 / 双対性 / 微分幾何 / 等質空間 / 平坦フロント / 極大面 / ヘッセ多様体 / アフィン微分幾何 / 情報幾何 / 古典的微分幾何 / 超幾何関数 / 交叉帽子 / カスプ辺 / 実解析写像の特異点 / 曲面の臍点 / 3次元球面の平坦トーラス / ツバメの尾 / 最大値原理 / 可視化 / スペシャル幾何 / tt*幾何 / 可積分幾何 / スピン作用 / モーメント写像 / 等径関数 / トランスノーマル関数 / L2調和1形式 / リッチ流 / トランスレイティングソリトン / 平均曲率流 / 交叉理論 / ラグランジュ部分多様体 / フレアホモロジー / 交叉数 / ハミルトン変形 / 共形型 / L2調和形式 / 極小ラグランジュ部分多様体 / harmonic mans / vanishing theorems / twistor spaces / Lie groups / quaternion manifolds / moduli spaces / vector bundles / ASD connections / 消滅定理 / コホモロジー / ASD接続 / コホモロジーの消滅定理 / リー群 / quantum cohomology / Einstein metric / Yang-Mills connection / Theory of harmonic maps / Moduli of singularities / G2 orbits / isoparametric hypersurfaces / 特異ルジャンドル曲線 / 4元数対称空間 / ツイスター切断理論 / 主編極アーベル多様性 / モデュライ理論 / 摂動スカラー曲率 / Lagrange部分多様体 / Frobenius多様体 / 超楕円ヤコビ多様体 / 特異点の解析 / 極小曲面のガウス写像 / G2軌道 / maxface / flat front / singularity / real hypersurface / discretization / affine hypersphere / classical differential geometry / アフィン曲面 / 線叢 / 定平均曲率曲面 / 弾性曲線 / ホップ実超曲面 / キルヒホフ弾性棒 / ダルブー変換 / 中心写像 / アフィン球面 / 重調和曲線 / cuspidal cross cap / 弱完備 / アフィン超球面 / Wave front / Inflection point / Singular point / 平坦 / hyperbolic space / 3-dimensional spherical space / Euclidean space / 平坦曲面 / Seiberg-Witten equation / 4 dimensional Kahler manifold / total curvature / exceptional holonomy / homogeneous hypersurface / isoparametric hypersurface / 平均曲率-定曲面 / 概複素曲線 / Seiberg-Witten不変量 / Einstein計量 / DS-diagram / ラグランジュ錐 / ラグランジュ・ルジャンドル部分多様体 / 距離空間のモジュライ / 例外ホロノミー / 等径・等質超曲面 / サイバーグウィッテン方程式 / 4元数ケーラー多様性 / 全曲率 / 例学ホロノミー / 等質超曲面 / symmetric space / twistor operator / twistor space / representation theory0 / quaternion manifold / anti-self-dual connection / vector bundle / moduli space / 四元数多様対 / 対称空間 / ツイスター作用素 / 表現論 / Mean curvature / Hyperbolic space / energy form / graph manifold / 4-manifold / 3-manifold / Alexandrov spare / Gromov-Hausdorff / collapsing / Riemannian manfolds / ソウル定理 / グロモフ・ハウスドルフ収束 / 端点 / エネルギー形式 / グラフ多様体 / 4次元多様体 / 3次元多様体 / グロモフ・ハウスドルフ距離 / 崩壊 / representation formula of Weierstrass type / statistical manifold / information geometry / projective differential geometry / affine differential geometry / HIMC曲面 / CMC曲面 / 極小中心アフィン曲面 / 極小アフィン超曲面 / ボロノイ図 / ベックルンド変換 / チェビシェフ・ベクトル場 / ワイエルシュトラス型表現公式 / 射影微分幾何 / Minimal submanifold / Biharmonic submanifold / Finite type submanifold / 二重調和多様体 / 有限型多様体 / 共形幾何学 / 極小曲面論 / 部分多様体論 / 極小部分多様体 / spherical 3-space / discrete surfaces / Morse index / hyperbolic 3-space / Euclidean 3-space / constant mean curvature surfaces / 平均曲率が一定 / 完備ではない多様体 / Weyl asymptotic formula / discrete spectrum / 離散的な曲面 / Delaumay surface / Wente tori / Morse Index / heat kernel / ends / Met、多様体 / Gauss写像 / Weierstrass表現公式 / スピナ表現 / CMC超曲面 / ロンスキャン / モジュラー群 / ウエンテ・トーラス / ドローネ曲面 / ヴェンテトーラス / 熱核 / 無限遠境界 / Convergence theorem / Laplacian / comparions geometry / Hausdorff distance / Alexandrov space / 大域リーマン幾何 / 収束定理 / ラプラシアン / 比較幾何学 / ハウスドルフ距離 / accessory parameter / space of initial conditions / モノドロミー保存変形 / Garnier系 / Painlev'e方程式 / Hermite / Kummerの超幾何 / Gauss超幾何 / generalized Airy fanction / intersection matrix / cohomological intersection number / Veronese variety / generating function / Gauss Manin系 / アクセサリーパラメータ / 合流 / 初期値空間 / Geometric structure / Curvature / Surface / Curve / Submanifold / 幾何構造 / quadratic relation / Gauss hypergeometric / Okubo system / Airy / 二次関形式 / ガンマ関数 / 二次関係式 / ガウス超幾何関数 / de Rham 理論 / ODE / monodoromoy / Weierstrass representation / minimal surfaces / モノドロミ-問題 / 常微分方程式 / モノドロミー問題 / ワイエルストラス表現 / Conformal Geometry / Minimal Submanifold / Spacelike Submanifold / Psudo-Euclidean Geometry / Harmonic Map / Biharmonic Submanifold / Finite Type Submanifold / 平均曲率一定曲面(CFIC) / スペクトル幾何 / アレクサンドロウ空間 / 指定ユークツカド幾可 / 共形幾可 / スペクトル幾可 / 共形幾何 / 空間型部分多様体 / 擬ユークリッド幾何 / surface with harmonic inverse mean curvature / harmonic map / conformal-projective transformation / statistical manfold / conformally flat manifold / conformal structure / トーラス作用 / 展開写像 / シンプレクティック / ペックルント変換 / ループ群 / CMC-H曲面 / シンプレクティック多様体 / 射影平坦 / 共形平坦 / 汎調和平均曲率曲面 / 平均曲率一定な曲面 / 共形-射影変換 / 共形平坦な多様体 / 共形平坦な超曲面 / 共形構造 / 鞍部点法 / holonomic系 / conomology / manifold / Floerホモロジー / 幾何学的変分問題 / シンプレクテイック幾何学 / リーマン幾何学 / 多様体 / Ricci Soliton / ラプラス作用素 / Alexandrov空間 / 固有値理論 / self-shrinker / mean curvature flow / maximum principle / Singularity / Alenxandrov space / minimal immersion / eigenvalues of Laplacian / アメリカ合衆国:ブラジル:スペイン / 対称性の崩壊 / アメリカ合衆国:ブラジル:スペイン:中国:英国 / アメリカ合衆国:ブラジル:スペイン / 国際情報交換 / 国際研究者交流 / Wulff図形 / 非等方的極小曲面 / ローレンツ・ミンコフスキー空間 / Wulff 図形 / 非等方的平均曲率一定曲面 / 分岐理論 / 4頂点定理 / ガウス・ボンネの定理 / 4頂点定理 / クレパント解消予想 / ミラー対称性 / tt*戸田格子 / Ricci soliton / 離散変形KdV方程式 / 可積分な運動 / 運動量写像 / 軌道の幾何学 / 量子コホモロジー / カオス性 / 離散幾何学 / 超曲面の幾何学 / 差分KdV方程式 / 積分表示公式 / 零はめ込み / 表現公式 / キルヒホッフ弾性棒 / 差分幾何 / ヘッセ幾何 / ハミルトン系 / 曲線の運動 / 頂点 / プラトー問題 / モノドロミ- / 漸近挙動 / 局所・大域解析 / 2次関係式 / 合流型超幾何関数 / Donsker's delta function / 汎関数空間上の積分 / 正値超汎関数の特徴付け / Hida Distribution / 核型空間上のガウス測度 / ホワイトノイズ解析 Less
  • Research Projects

    (46 results)
  • Research Products

    (231 results)
  • Co-Researchers

    (118 People)
  •  Analogues of the Weierstrass representation formula and extension problem of submanifolds at their singularitiesPrincipal Investigator

    • Principal Investigator
      山田 光太郎
    • Project Period (FY)
      2022 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 11020:Geometry-related
    • Research Institution
      Institute of Science Tokyo
  •  Differential geometrey of singularities and its applications

    • Principal Investigator
      梅原 雅顕
    • Project Period (FY)
      2021 – 2025
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 11020:Geometry-related
    • Research Institution
      Institute of Science Tokyo
  •  Singularities of surfaces and hypersurfaces in Lorentzian space formsPrincipal Investigator

    • Principal Investigator
      Yamada Kotaro
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Institute of Technology
  •  Study on geometric structures of singularities of the mean curvature type flow

    • Principal Investigator
      Cheng Qing-Ming
    • Project Period (FY)
      2016 – 2020
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka University
  •  Promotion of the study of curves, surfaces and hypersurfaces with singularities from the view point of differential geometry

    • Principal Investigator
      UMEHARA MASAAKI
    • Project Period (FY)
      2014 – 2018
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Institute of Technology
  •  Surfaces with singularities in space-times and Weierstrass-type representation formulasPrincipal Investigator

    • Principal Investigator
      Yamada Kotaro
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Institute of Technology
  •  The latest frontier study on geometry and theory of eigenvalues

    • Principal Investigator
      Cheng Qing-Ming
    • Project Period (FY)
      2012 – 2015
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka University
  •  Development of Integrable Geometry

    • Principal Investigator
      Miyaoka Reiko
    • Project Period (FY)
      2011 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Tohoku University
  •  Geometry of curves, surfaces and hypersurfaces with singularities

    • Principal Investigator
      UMEHARA Masaaki
    • Project Period (FY)
      2010 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Institute of Technology
      Osaka University
  •  Differential geometric research on surfaces admitting singularities and its application

    • Principal Investigator
      KOKUBU Masatoshi
    • Project Period (FY)
      2010 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Denki University
  •  Stability and bifurcation for periodic minimal surfaces and surfaces with constant mean curvature, and applications to other fields

    • Principal Investigator
      KOISO Miyuki
    • Project Period (FY)
      2010 – 2012
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  Weierstrass-type representation formulas and their application to surfaces with singularitiesPrincipal Investigator

    • Principal Investigator
      YAMADA Kotaro
    • Project Period (FY)
      2009 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Tokyo Institute of Technology
  •  Geometry of curves and surfaces with singularities

    • Principal Investigator
      UMEHARA Masaaki
    • Project Period (FY)
      2007 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  Fusion of geometry and the theory of integrable systems

    • Principal Investigator
      MIYAOKA Reiko
    • Project Period (FY)
      2007 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Tohoku University
  •  Generalizations of Weierstrass-type representation formula and their applications to theory of surface with singularitiesPrincipal Investigator

    • Principal Investigator
      YAMADA Kotaro (KOTARO Yamada)
    • Project Period (FY)
      2006 – 2008
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  Classical differential geometry from the modern viewpoint and its application

    • Principal Investigator
      KUROSE Takashi
    • Project Period (FY)
      2006 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka University
  •  GLOBAL CONSTRUMONS OF MODULI SPACES

    • Principal Investigator
      NAGATOMO Yasuyuki
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  Development and relations between various geometries and integrable systems

    • Principal Investigator
      MIYAOKA Reiko
    • Project Period (FY)
      2004 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Tohoku University
      Kyushu University
  •  Application of integrable systems methods to surfaces with particular variational properties

    • Principal Investigator
      ROSSMAM W.F.
    • Project Period (FY)
      2003 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Kobe University
  •  The global behavior of curves and surfaces in space forms

    • Principal Investigator
      UMEHARA Masaaki
    • Project Period (FY)
      2003 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  Classical differential geometry from the modern viewpoint and its applications

    • Principal Investigator
      KUROSE Takashi
    • Project Period (FY)
      2003 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka University
  •  Generalizations of Weierstrass-type representation formulae and applicationsPrincipal Investigator

    • Principal Investigator
      YAMADA Kotaro
    • Project Period (FY)
      2002 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  TOPOLOGY OF MODULI SPACES AND REPRESENTATION THEORY

    • Principal Investigator
      NAGATOMO Yasuyuki
    • Project Period (FY)
      2002 – 2004
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  Differential equations and theory of submanifolds

    • Principal Investigator
      MIYAOKA Reiko
    • Project Period (FY)
      2002 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
      Sophia University
  •  Theory of collapsing Riemannian manifolds and geometry of Alexandrov spaces

    • Principal Investigator
      YAMAGUCHI Takao
    • Project Period (FY)
      2001 – 2004
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      University of Tsukuba
      Kyushu University
  •  Research on surfaces of constant mean curvature one in hyperbolic space and its application

    • Principal Investigator
      UMEHARA Masaaki
    • Project Period (FY)
      2001 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      HIROSHIMA UNIVERSITY
  •  Morse index of constant mean curvature surfaces and discrete constant mean curvature surfaces

    • Principal Investigator
      ROSSMAN Wayne
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      KOBE UNIVERSITY
  •  GEOMETRY OF LAPLACE OPERATOR OR ITS VARIATION TYPE OPERATOR ON RIEMANNIAN MANIFOLD (2003)

    • Principal Investigator
      ISHIKAWA Susumu
    • Project Period (FY)
      2000 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      SAGA UNIVERSITY
  •  Modern Research of Affine and Projective Geometry and its Applications

    • Principal Investigator
      KUROSE Takashi
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Fukuoka University
  •  極小曲面による3次元アレクサンドロフ空間の分類理論の創始

    • Principal Investigator
      YAMAGUCHI Takao
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
  •  DIFFERENTIAL GEOMETRIC RESEARCH ON SUBMANIFOLDS

    • Principal Investigator
      OGIUE Koichi
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      TOKYO METROPOLITAN UNIVERSITY
  •  Integrated research of the general hypergeometric systems and nonlinear integrable systems

    • Principal Investigator
      KIMURA Hironobu
    • Project Period (FY)
      1999 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Global analysis
    • Research Institution
      Kumamoto University
  •  Geometry of space of Riemannian manifolds

    • Principal Investigator
      OTSU Yukio
    • Project Period (FY)
      1999 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
      Osaka University
  •  Morse index and heat kernel of constant mean curvature surfaces

    • Principal Investigator
      WATANABE Kiyoshi
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Kobe University
  •  Construction of submanifold with constant mean curvature, and its applicationsPrincipal Investigator

    • Principal Investigator
      YAMADA Kotaro
    • Project Period (FY)
      1998 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (B).
    • Research Field
      Geometry
    • Research Institution
      Kyushu University
      Kumamoto University
  •  Research for manifolds with conformal structure

    • Principal Investigator
      SUYAMA Yoshihiko
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      FUKUOKA UNIVERSITY
  •  The Spectral Geometry on the submanifold of (pseudo-) Euclidean space

    • Principal Investigator
      ISHIKAWA Susumu
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      SAGA UNIVERSITY
  •  Representation formulas of Weierstrass type in submanifold theory

    • Principal Investigator
      INOUE Hisao
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Kumamoto University
  •  Toward a unified theory of special functions of several variables

    • Principal Investigator
      KIMURA Hironobu
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Department of Mathematics, Kumamoto University
  •  一般合流型超幾何関数のなすヒエラルキーの構造の研究

    • Principal Investigator
      HARAOKA Yoshishige
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Kumamoto University
  •  Toward a unified theory special functions of several variables

    • Principal Investigator
      KIMURA Hironobu
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      解析学
    • Research Institution
      Department of Mathematics, Kumamoto University
  •  双曲型空間の極小曲面Principal Investigator

    • Principal Investigator
      山田 光太郎
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Geometry
    • Research Institution
      Kumamoto University
  •  Differential Geometric Reserch on Manifolds

    • Principal Investigator
      KENMOTSU Katsuei
    • Project Period (FY)
      1995 – 1996
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Tohoku University
  •  双曲型空間の一定な平均曲率をもつ曲面Principal Investigator

    • Principal Investigator
      山田 光太郎
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Geometry
    • Research Institution
      Kumamoto University
  •  3次元空間型の一定な平均曲率をもつ曲面に対する表現公式Principal Investigator

    • Principal Investigator
      山田 光太郎
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Geometry
    • Research Institution
      Kumamoto University
  •  ブラウン運動の超汎関数とFeynmanの経路積分および量子場の理論

    • Principal Investigator
      横井 嘉孝
    • Project Period (FY)
      1990
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      General mathematics (including Probability theory/Statistical mathematics)
    • Research Institution
      Kumamoto University

All 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2000 Other

All Journal Article Presentation Book

  • [Book] Differential geometry of curves and surfaces with singularities2022

    • Author(s)
      Umehara Masaaki, Saji Kentaro, Yamada Kotaro
    • Total Pages
      370
    • Publisher
      WorldScientific Publ.
    • ISBN
      9789811237157
    • Data Source
      KAKENHI-PROJECT-23K22392
  • [Book] 特異点をもつ曲線と曲面の微分幾何学2017

    • Author(s)
      梅原 雅顕・山田光太郎・佐治 健太郎
    • Total Pages
      319
    • Publisher
      丸善出版
    • ISBN
      9784621302156
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Deformations of cuspidal edges in a 3-dimensional space form2024

    • Author(s)
      K. Saji, M. Umehara and K. Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: 47 Issue: 1 Pages: 67-89

    • DOI

      10.2996/kmj47105

    • ISSN
      0386-5991, 1881-5472
    • Year and Date
      2024-03-11
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23K20794
  • [Journal Article] Symmetries of cross caps2023

    • Author(s)
      A. Honda, K. Naokawa, K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Tohoku Mathematical Journal

      Volume: 75 Issue: 1 Pages: 131-141

    • DOI

      10.2748/tmj.20211203

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-22KK0034, KAKENHI-PROJECT-22K03312, KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-23K20794, KAKENHI-PROJECT-23K22392
  • [Journal Article] Analytic extensions of constant mean curvature one geometric catenoids in de Sitter 3-space2022

    • Author(s)
      Shoichi Fujimori, Yu Kawakami, Masatoshi Kokubu, Wayne Rossman, Masaaki Umehara, Kotaro Yamada and Seong-Deog Yang
    • Journal Title

      Differential Geometry and Its Applications

      Volume: 84 Pages: 101924-101924

    • DOI

      10.1016/j.difgeo.2022.101924

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03617, KAKENHI-PROJECT-21K03226, KAKENHI-PROJECT-22H00094, KAKENHI-PROJECT-19K03463, KAKENHI-PROJECT-17H02839, KAKENHI-PROJECT-23K20794, KAKENHI-PROJECT-23K22392
  • [Journal Article] A generalization of Zakalyukin's lemma, and symmetries of surface singularities2022

    • Author(s)
      Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
    • Journal Title

      Journal of Singularities

      Volume: 25 Pages: 299-324

    • DOI

      10.5427/jsing.2022.25m

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-23K20794, KAKENHI-PROJECT-23K22392
  • [Journal Article] Hypersurfaces with light-like points in a Lorentzian manifold II2021

    • Author(s)
      Umehara Masaaki、Yamada Kotaro
    • Journal Title

      Kodai Mathematical Journal

      Volume: 44 Issue: 1 Pages: 69-76

    • DOI

      10.2996/kmj44104

    • NAID

      130008000449

    • ISSN
      0386-5991, 1881-5472
    • Year and Date
      2021-03-18
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17H02839
  • [Journal Article] Analytic extension of exceptional constant mean curvature one catenoids in de Sitter 3-space.2020

    • Author(s)
      Shoichi Fujimori, Yu Kawakami, Masatoshi Kokubu, Wayne Rossman, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Mathematical Journal of Okayama University

      Volume: 62 Pages: 179-195

    • NAID

      120006778830

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02839
  • [Journal Article] Improvement of the Bernstein-type theorem for space-like zero mean curvature graphs in Lorentz-Minkowski space using fluid mechanical duality2020

    • Author(s)
      S. Akamine, M. Umehara and K. Yamada
    • Journal Title

      Proc. Amer. Math. Soc. B

      Volume: 7 Pages: 17-27

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] Bernstein-type theorem for zero mean curvature hypersurfaces without time-like points in Lorentz-Minkowski space2020

    • Author(s)
      Shintaro Akamine, Atsufumi Honda, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Bulletin of the Brazilian Mathematical Society, New Series

      Volume: - Issue: 1 Pages: 1-7

    • DOI

      10.1007/s00574-020-00196-8

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-19K14527, KAKENHI-PROJECT-16H03937
  • [Journal Article] Curved foldings with common creases and crease patterns2020

    • Author(s)
      Honda Atsufumi、Naokawa Kosuke、Saji Kentaro、Umehara Masaaki、Yamada Kotaro
    • Journal Title

      Advances in Applied Mathematics

      Volume: 121 Pages: 102083-102083

    • DOI

      10.1016/j.aam.2020.102083

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03301, KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-19K14526, KAKENHI-PROJECT-17H02839
  • [Journal Article] Improvement of the Bernstein-type theorem for space-like zero mean curvature graphs in Lorentz-Minkowski space using fluid mechanical duality2020

    • Author(s)
      Akamine S.、Umehara M.、Yamada K.
    • Journal Title

      Proceedings of the American Mathematical Society, Series B

      Volume: 7 Issue: 2 Pages: 17-27

    • DOI

      10.1090/bproc/44

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-19K14527, KAKENHI-PROJECT-16H03937, KAKENHI-PROJECT-17H02839
  • [Journal Article] Analytic extension of exceptional constant mean curvature one catenoids in de Sitter 3-space2020

    • Author(s)
      Fujiori S., Kawakami, Y., Kokubu, M., Rossman, W., Umehara M., Yamada, K.
    • Journal Title

      Mathematical Journal of Okayama University

      Volume: 62 Pages: 179-195

    • NAID

      120006778830

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02839
  • [Journal Article] Analytic extension of exceptional constant mean curvature one catenoids in de Sitter 3-space2020

    • Author(s)
      S. Fujimori, Y. Kawakami, M. Kokubu, W. Rossman, M. Umehara and K. Yamada
    • Journal Title

      Math. J. Okayama Univ.

      Volume: 62 Pages: 179-195

    • NAID

      120006778830

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] Hypersurfaces with light-like points in a Lorentzian manifold2019

    • Author(s)
      M. Umehara, K. Yamada
    • Journal Title

      Journal of Goemetric Analysis

      Volume: 印刷中 Issue: 4 Pages: 1-33

    • DOI

      10.1007/s12220-018-00118-7

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-17H02839, KAKENHI-PROJECT-16H03937
  • [Journal Article] Space-like maximal surfaces containing entire null lines in Lorentz-Minkowski 3-space2019

    • Author(s)
      Akamine Shintaro、Umehara Masaaki、Yamada Kotaro
    • Journal Title

      Proceedings of the Japan Academy, Series A, Mathematical Sciences

      Volume: 95 Issue: 9 Pages: 97-102

    • DOI

      10.3792/pjaa.95.97

    • NAID

      40022077001

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02839
  • [Journal Article] Isometric realization of cross caps as formal power series and its applications2019

    • Author(s)
      HONDA Atsufumi、NAOKAWA Kosuke、UMEHARA Masaaki、YAMADA Kotaro
    • Journal Title

      Hokkaido Mathematical Journal

      Volume: 48 Issue: 1 Pages: 1-44

    • DOI

      10.14492/hokmj/1550480642

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14197, KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-16K17605
  • [Journal Article] Analytic extension of exceptional constant mean curvature  one catenoids in de Sitter 3-space2019

    • Author(s)
      S. Fujimori,Y. Kawakami, M. Kokubu,W. Rossman, M. Umehara, K. Yamada
    • Journal Title

      Math. J. Okayama Univ.

      Volume: 印刷中

    • NAID

      120006778830

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Isometric realization of cross caps as formal power series and its applications2019

    • Author(s)
      Honda, A., Naokawa, K., Umehara, M., Yamada, K.
    • Journal Title

      Hokkaido Mathematical Journal

      Volume: 48 Pages: 1-44

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02839
  • [Journal Article] Hypersurfaces with Light-Like Points in a Lorentzian Manifold2019

    • Author(s)
      Umehara, M. & Yamada, K.
    • Journal Title

      Journal of Geometric Analysis

      Volume: in press

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] Isometric realization of cross caps as formal power series and its applications2018

    • Author(s)
      A. Honda, K. Naokawa, M. Umehara, K. Yamada
    • Journal Title

      Hokkaido Mathmatical Journal

      Volume: 印刷中

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Surfaces with light-like points in Lorentz-Minkowski 3-space with applications2018

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Springer Proceedings of Mathematics and Statics

      Volume: 211 Pages: 253-273

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Analytic Extension of Jorge-Meeks type maximal surfaces in Lorentz-Minkowski 3-space2017

    • Author(s)
      S. Fujimori, Y. Kawakami, M. Kokubu, W. Rossman, M. Umehara and K. Yamada
    • Journal Title

      Osaka J. Math.

      Volume: 54 Pages: 249-272

    • NAID

      120006312701

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] Analytic extension of Jorge-Meeks type maximal surfaces in Lorentz-Minkowski 3-space2017

    • Author(s)
      S.Fujimori, Y. Kawakami, M. Kokubu, W. Rossman, M. Umehara, K. Yamada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 54 Pages: 249-272

    • NAID

      120006312701

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] An index formula for a bundle homomorphism of the tangent bundle into a vector bundle of the same rank, and its applications2017

    • Author(s)
      K. Saji, M. Umehara and K. Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 69 Issue: 1 Pages: 417-457

    • DOI

      10.2969/jmsj/06910417

    • NAID

      130005310476

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Language
      English
    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-16H03937
  • [Journal Article] Quadrics and Scherk towers2017

    • Author(s)
      Fujimori S.、Hertrich-Jeromin U.、Kokubu M.、Umehara M.、Yamada K.
    • Journal Title

      Monatshefte f?r Mathematik

      Volume: - Issue: 2 Pages: 249-279

    • DOI

      10.1007/s00605-017-1075-5

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05227, KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-17K05219, KAKENHI-PROJECT-16H03937, KAKENHI-PROJECT-17H02839
  • [Journal Article] Analytic extension of Jorge-Meeks type maximal surfaces in Lorentz-Minkowski 3-space2017

    • Author(s)
      S. Fujimori, Y. Kawakami, M. Kokubu, W. Rossman, M. Umehara, K. Yamada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 印刷中

    • NAID

      120006312701

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Mixed type surfaces with bounded mean curvature in 3-dimensional space-times2017

    • Author(s)
      A. Honda, M. Koiso, M. Kokubu, M. Umehara and Kotaro Yamada
    • Journal Title

      Diff. Geom. and its Appl.

      Volume: 52 Pages: 64-77

    • DOI

      10.1016/j.difgeo.2017.03.009

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-25287012, KAKENHI-PROJECT-26520205, KAKENHI-PROJECT-26610016, KAKENHI-PROJECT-26400066, KAKENHI-PROJECT-17K05227, KAKENHI-PROJECT-16K17605
  • [Journal Article] Surfaces With Light-Like Points In Lorentz-Minkowski 3-Space With Applications2017

    • Author(s)
      Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Springer Proceedings in Mathematics & Statistics

      Volume: 211 Pages: 253-273

    • DOI

      10.1007/978-3-319-66290-9_14

    • ISBN
      9783319662893, 9783319662909
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400066, KAKENHI-PROJECT-17H02839
  • [Journal Article] Mixed type surfaces with bounded mean curvature in 3-dimensional space-times2017

    • Author(s)
      A. Honda, M. Koiso, M. Kokubu, M. Umehara and K. Yamada
    • Journal Title

      Diff. Geom. Appl.

      Volume: 52 Pages: 64-77

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] An index formula for a bundle homomorphism of the tangent bundle into a vector bundle of the same rank and its applications2017

    • Author(s)
      K. Saji, M. Umehara and K. Yamada
    • Journal Title

      J. Math. Soc. Japan

      Volume: 69 Pages: 417-457

    • NAID

      130005310476

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Journal Article] ISOMETRIC DEFORMATIONS OF CUSPIDAL EDGES2016

    • Author(s)
      K. Naokawa, M. Umehara and K. Yamada
    • Journal Title

      Tohoku Mathematical Journal, Second Series

      Volume: 68 Issue: 1 Pages: 73-90

    • DOI

      10.2748/tmj/1458248863

    • NAID

      130008106069

    • ISSN
      0040-8735, 2186-585X
    • Year and Date
      2016-03-30
    • Language
      English
    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Journal Article] Isometric deformations of cuspidal edges2016

    • Author(s)
      K. Naokawa, M. Umehara, and K. Yamada
    • Journal Title

      Tohoku Math. J.

      Volume: 68

    • NAID

      130008106069

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Behavior of Gaussian Curvature and Mean Curvature Near Non-degenerate Singular Points on Wave Fronts2016

    • Author(s)
      Luciana F, Martins, Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Springer Proceedings in Mathematics & Statistics

      Volume: 154 Pages: 1-39

    • DOI

      10.1007/978-4-431-56021-0_14

    • ISBN
      9784431560197, 9784431560210
    • Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400066, KAKENHI-PROJECT-26400087
  • [Journal Article] Entite zero-mean curvature graphs of mixed type in Lorents-Minkowski 3-space2016

    • Author(s)
      S. Fujimori, Y. Kawakami, M. Kokubu, W. Rossman, M. Umehara, K. Yamada
    • Journal Title

      Quart. J. Math.

      Volume: 67 Pages: 1-37

    • DOI

      10.1093/qmath/haw038

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-16H03937, KAKENHI-PROJECT-25287012, KAKENHI-PROJECT-25800047, KAKENHI-PROJECT-15K04840, KAKENHI-PROJECT-26400066
  • [Journal Article] Zero mean curvature surfaces in Lorentz-Minkowski 3-space and 2-dimensional fluid mechanics2015

    • Author(s)
      S. Fujimori, Y. W. Kim, S.-E. Koh, W. Rossman, H. Shin, M. Umehara,K. Yamada and S.-D. Yang
    • Journal Title

      Math. J. Okayama Univ.

      Volume: 57

    • NAID

      120005525349

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Intrinsic properties of surfaces with singularities2015

    • Author(s)
      M. Hasegawa, A. Honda, K. Naokawa, K. Saji, M. Umehara, K. Yamada
    • Journal Title

      International Journal of Mathatematics

      Volume: 26 Issue: 04 Pages: 1-34

    • DOI

      10.1142/s0129167x1540008x

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-14J00101, KAKENHI-PROJECT-26400066, KAKENHI-PROJECT-26400087, KAKENHI-PROJECT-26247005, KAKENHI-PROJECT-24340013
  • [Journal Article] Zero mean curvature surfaces in Lorentz-Minkowski 3-space which change type across a light-like line2015

    • Author(s)
      S. Fujimori, Y.W. Kim, S.-E. Koh, W. Rossman, H. Shin, M. Umehara,K. Yamada and S.-D. Yang
    • Journal Title

      Osaka J. Math.

      Volume: 52 Pages: 285-297

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-24340013
  • [Journal Article] Intrinsic Deformation of Cuspidal Edges2015

    • Author(s)
      Kosuke Naokawa, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Tohoku Mathematical Jourrnal

      Volume: -

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Journal Article] Zero mean curvature surfaces in Lorentz-Minkowski 3-space which change type across a light-like line2015

    • Author(s)
      S. Fujimori, Y. W. Kim, S.-E. Koh, W. Rossman, H. Shin, M. Umehara, K. Yamada and S.-D. Yang
    • Journal Title

      Osaka J. Math.

      Volume: 52

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Journal Article] Zero mean curvature surfaces in Lorentz-Minkowski 3-space and 2-dimensional fluid mechanics2015

    • Author(s)
      S. Fujimori, Y.W. Kim, S.-E. Koh, W. Rossman, H. Shin, M. Umehara,K. Yamada and S.-D. Yang
    • Journal Title

      Math. J. Okayama Univ.

      Volume: 57 Pages: 173-200

    • NAID

      120005525349

    • Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-24340013
  • [Journal Article] Embedded triply periodic zero mean curvature surfaces of mixed type in Lorentz-Minkowski 3-space2014

    • Author(s)
      Shoichi Fujimori, Wayne Rossman, Masaaki Umehara, Kotaro Yamada, Seong-Deog Yang
    • Journal Title

      Michigan Mathematical Journal

      Volume: 63 Pages: 189-207

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24340013
  • [Journal Article] A construction of a complete bounded null curve in <b>C</b><sup>3</sup>2014

    • Author(s)
      L. Ferrer, F. Martin, M. Umehara and K. Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: 37 Issue: 1 Pages: 59-96

    • DOI

      10.2996/kmj/1396008249

    • NAID

      130004496212

    • ISSN
      0386-5991, 1881-5472
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] A construction of a complete bounded null curve in C32014

    • Author(s)
      Leonor Ferrer, Francisco Martin, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: 37 Pages: 59-96

    • NAID

      130004496212

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Embedded triply periodic zero mean curvature surfaces of mixed type in Lorentz-Minkowski 3-space2014

    • Author(s)
      S. Fujimori, W. Rossman, M. Umehara, K. Yamada and S.-D. Yang
    • Journal Title

      Michigan Math. J.

      Volume: 63 Issue: 1 Pages: 189-207

    • DOI

      10.1307/mmj/1395234364

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22244006, KAKENHI-PROJECT-25800047, KAKENHI-PROJECT-24224001
  • [Journal Article] Intrinsic invariants of cross caps2014

    • Author(s)
      Masaru Hasegawa, Atsufumi Honda, Kosuke Naokawa, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Selecta Mathematica

      Volume: 20 Pages: 769-785

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24340013
  • [Journal Article] Flat surfaces in hyperbolic 3-space whose hyperbolic Gauss maps are bounded2014

    • Author(s)
      Francisco Martín, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Revista Mathemática Iberoamericana

      Volume: 30 Issue: 1 Pages: 309-316

    • DOI

      10.4171/rmi/779

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-22244006
  • [Journal Article] Flat surfaces in hyperbolic 3-space whose hy perbolic Gauss maps are bounded2014

    • Author(s)
      Francisco Martin, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Revista Matemtica Iberoamericana

      Volume: 30 Pages: 309-316

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] A duality for conformally flat hypersurfaces2014

    • Author(s)
      U.Hertrich-Jeromin, Y.Suyama, M.Umehara, K.Yamada
    • Journal Title

      Beitr Algebra Geom

      Volume: 55 Issue: 2 Pages: 655-676

    • DOI

      10.1007/s13366-014-0225-3

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26400076, KAKENHI-PROJECT-24340013
  • [Journal Article] Hyperbolic metrics on Riemann surfaces and space-like CMC-1 Surfaces in de Sitter 3-Space in "Recent Trends in Lorentzian Geometry"2013

    • Author(s)
      Shoichi Fujimori, Yu Kawakami, Masatoshi Kokubu, Wayne Rossman, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Springer Proceedings in Mathematics & Statistics

      Volume: 26 Pages: 1-47

    • DOI

      10.1007/978-1-4614-4897-6_1

    • ISBN
      9781461448969, 9781461448976
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-21740052, KAKENHI-PROJECT-22540100, KAKENHI-PROJECT-23540091, KAKENHI-PROJECT-24740044
  • [Journal Article] Intrinsic invariants of cross caps Selecta Mathematica2013

    • Author(s)
      Masaru Hasegawa, Atsufumi Honda, Kosuke Naokawa, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Online First

      Volume: 20130730 Issue: 3 Pages: 769-785

    • DOI

      10.1007/s00029-013-0134-6

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-22244006, KAKENHI-PROJECT-24340013, KAKENHI-PROJECT-26247005
  • [Journal Article] Coherent tangent bundles and Gauss-Bonnet formulas for wave fronts2012

    • Author(s)
      Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Journal of Geometric Analysis

      Volume: vol.22 Issue: 2 Pages: 383-409

    • DOI

      10.1007/s12220-010-9193-5

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-22244006, KAKENHI-PROJECT-23740045, KAKENHI-PROJECT-24340013
  • [Journal Article] Zero mean curvature surfaces in L^3 containing a light-like line2012

    • Author(s)
      Shoichi Fujimori
    • Journal Title

      Comptes Reudus de l'Academie Sciences. Serie I. Mathematique,

      Volume: 350 Issue: 21-22 Pages: 975-978

    • DOI

      10.1016/j.crma.2012.10.024

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-21740052, KAKENHI-PROJECT-22244006, KAKENHI-PROJECT-24340013
  • [Journal Article] Zero mean curvature surfaces in L3 containing a light-like line2012

    • Author(s)
      Shoichi Fujimori, Young Wook Kim, Sung-Eun Koh, Wayne Rossman, Heayong Shin, Hidenobu Takahashi, Masaaki Umehara, Kotaro Yamada, Seong-Deog Yang
    • Journal Title

      Comptes Reudus de l'Acadmie Sci. Srie I. Mathmatique

      Volume: vol.350 Pages: 975-978

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Corrigendum : Applications of a completeness lemma in minimal surface theory to various classes of surfaces2012

    • Author(s)
      Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: vol.44 Pages: 617-618

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Applications of a completeness lemma in minimal surface theory to various classes of surfaces2011

    • Author(s)
      Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: vol.43 Pages: 191-199

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] A2-singularities of hypersurfaces with non-negative sectional curvature in Euclidean space2011

    • Author(s)
      Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: vol.34 Pages: 390-409

    • NAID

      130004687956

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Applications of a completeness lemma in minimal surface theory to various classes of surfaces2011

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: 43 Issue: 3 Pages: 191-199

    • DOI

      10.1112/blms/bds017

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] CMC-1 trinoids in H^3 and metrics of constant curvature one…2011

    • Author(s)
      S.Fujimori, K.Yamada, et.al.
    • Journal Title

      Proceedings of Japan Academy, Ser.A.

      Volume: 87 Issue: 8 Pages: 144-149

    • DOI

      10.3792/pjaa.87.144

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016, KAKENHI-PROJECT-21740052, KAKENHI-PROJECT-21740053, KAKENHI-PROJECT-22244006, KAKENHI-PROJECT-22540100
  • [Journal Article] The duality of conformally flat manifolds2011

    • Author(s)
      H.L.Liu, M.Umehara, K.Yamada
    • Journal Title

      Bulletin of the Brasilian Mathematical Society

      Volume: 42 Pages: 131-152

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Applications of a completeness lemma in minimal surface theory to various classes of surfaces2011

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: 43 Pages: 191-199

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The duality of conformally flat manifolds2011

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Bulletin of the Brasilian Mathematical Society

      Volume: 42 Pages: 131-152

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] <i>A</i><sub>2</sub>-singularities of hypersurfaces with non-negative sectional curvature in Euclidean space2011

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: 34 Issue: 3 Pages: 390-409

    • DOI

      10.2996/kmj/1320935549

    • NAID

      130004687956

    • ISSN
      0386-5991, 1881-5472
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] A_2 singularities of hypersurfaces with non-negative sectional curvature…2011

    • Author(s)
      K.Saji, M.Umehara, K..Yamada
    • Journal Title

      Kodai Mathematical Journal

      Volume: 34 Pages: 390-409

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] The duality of conformally flat manifolds Bulletin of the Brasilian Mathematical Society2011

    • Author(s)
      Huili Liu, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      N. S.

      Volume: vol.42 Pages: 131-152

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] CMC-1 trinoids in H3 and metrics of constant curvature one with conical singularities on S22011

    • Author(s)
      Shoichi Fujimori, Yu Kawakami, Masatoshi Kokubu, Wayne Rossman, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Proceedings of Japan Academy

      Volume: vol.87,Ser.A Pages: 144-149

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] The duality of conformally flat manifolds2011

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Boll.London Math.Soc. 43

      Pages: 191-199

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The duality of conformally flat manifolds2011

    • Author(s)
      Huili Liu, M.Umehara, K.Yamada
    • Journal Title

      Bulletin of the Brasilian Mathematical Society

      Volume: 42 Pages: 131-152

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] The duality between singular points and inflection points on wave fronts2010

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 47 Pages: 591-607

    • NAID

      120004844268

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Singularities of Blaschke normal maps of convex surfaces2010

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Comptes Reudus de l'Academie Sciences. Serie I.

      Volume: 348 Pages: 41-82

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] The duality between singular points and inflection points on wave fronts2010

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Osaka J.Math.

      Volume: 47 Pages: 591-607

    • NAID

      120004844268

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] The duality between singular points and inflection points on wave fronts2010

    • Author(s)
      Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: vol.47 Pages: 591-607

    • NAID

      120004844268

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Applications of completeness lemma in minimal surface theory to various classes of surfaces2010

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: 43 Pages: 191-199

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Singularities of Blaschke normal maps of convex surfaces2010

    • Author(s)
      Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Comptes Reudus de l'Acadmie Sciences. Srie I. Mathmatique

      Volume: vol.348 Pages: 665-668

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] The duality between singular points and inflection points on wave fronts2010

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 47 Pages: 591-607

    • NAID

      120004844268

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Singularities of Blaschke normal maps of convex surfaces2010

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      C.R.Acad.Sci.Paris.Ser.I

      Volume: 348 Pages: 665-668

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244006
  • [Journal Article] Singularities of Blaschke normal maps of convex surfaces2010

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Comptes Reudus de I'Academie Sciences. Serie I.Mathematique

      Volume: 348 Pages: 665-668

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Ann.of Math. 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Ann. of Math 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] Asymptotic behavior of flat surfaces in hyperbolic 3-space2009

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara K.Yamada
    • Journal Title

      J.Math.Soc.Japan 61

      Pages: 799-852

    • NAID

      10026998469

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Complete bounded null curves immersed in C3 and PSL (2, C)2009

    • Author(s)
      F. Martin, M. Umehara, K. Yamada
    • Journal Title

      Calculus of Variations and Partial Differential Equations 36

      Pages: 119-139

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] Spacelike mean curvature one surfaces in de Sitter 3-space2009

    • Author(s)
      S.Fujimori, W.Rossman, M.Umehara K.Yamada, S.-D.Yang
    • Journal Title

      Communications in Analysis and Geometgry 17

      Pages: 383-427

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] New maximal surfaces in Minkowski 3-space with arbitrary genus and their cousins in de Sitter 3-space2009

    • Author(s)
      S.Fujimori, W.Rossman, M.Umehara K.Yamada, S.D.Yang
    • Journal Title

      Results in Math. 56

      Pages: 41-82

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Annals of Mathematics 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Asymptotic behavior of flat surface in hyperbolic 3-space2009

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 61

      Pages: 799-852

    • NAID

      10026998469

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Annals of Mathematics 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18540103
  • [Journal Article] Mathematical Proceedings of the Cambridge Philosophical Society2009

    • Author(s)
      K. Saji, M. Umehara, K. Yamada, Ak singularities of wave fronts
    • Journal Title

      Volume 146

      Pages: 731-746

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] New maximal surfaces in Minkowski 3-space with arbitrary genus and their cousins in de Sitter 3-space2009

    • Author(s)
      Shoichi Fujimori, Wayne Rossman, Masaaki Umehara, Kotaro Yamada and Seog-Deong Yang
    • Journal Title

      Results in Mathematics

      Volume: vol.56 Pages: 41-82

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Complete bounded null curves immersed in C3 and PSL(2, C)2009

    • Author(s)
      F.Martin, M.Umehara, K.Yamada
    • Journal Title

      Calculus of Variations and Partial Differential Equations 36

      Pages: 119-139

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] Spacelike mean curvature one surfaces in de Sitter 3-space2009

    • Author(s)
      S.Fuuimori, W.Rossman, M.Umehara, K.Yamada, S.-D.Yang
    • Journal Title

      Communications in Analysis and Geometgry 17

      Pages: 383-427

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Spacelike mean curvature one surfaces in de Sitter $3$-space2009

    • Author(s)
      S.Fujimori, W.Rossman, M.Umehara K.Yamada, S.-D.Yang
    • Journal Title

      Communications in Analysis and Geometgry 17

      Pages: 383-427

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Asymptotic behavior of flat surface in hyperbolic 3-space2009

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 61

      Pages: 799-852

    • NAID

      10026998469

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] Complete bounded holomorphic curves immersed in C^2 with arbitrary genus2009

    • Author(s)
      F.Martin, M.Umehara, K.Yamada,
    • Journal Title

      Proc.Amer.Math.Soc. 137

      Pages: 3437-3450

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Ak singularities of wave fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society 146

      Pages: 731-746

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] Complete bounded null curves immersed in C^3 and PSL(2, C)2009

    • Author(s)
      F.Martin, M.Umehara, K.Yamada
    • Journal Title

      Calculus of Variations and Partial Differential Equations 36

      Pages: 119-139

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] A_k singularities of wave fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Math.Proc.of the Cambridge Philosophical Soc. 146

      Pages: 731-746

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Ann. of Math. 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204005
  • [Journal Article] New Maximal Surfaces in Minkowski 3-Space with Arbitary Genus and Their Cousins in de Sitter 3-Space2009

    • Author(s)
      S.Fujimori, W.Rossman, M.Umehara, K.Yamada, S-D.Yang
    • Journal Title

      Result.Math. 56

      Pages: 41-82

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Complete bounded holomorphic curves immersed in C^2 with arbitrary genus2009

    • Author(s)
      F.Martin, M.Umehara, K.Yamada
    • Journal Title

      Proc.Amer.Math.Soc. 137

      Pages: 3437-3450

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Spacelike mean curvature one surfaces in de Sitter 3-space2009

    • Author(s)
      Shoichi Fujimori, Wayne Rossman, Masaaki Umehara, Kotaro Yamada and Seog-Deong Yang
    • Journal Title

      Communucations in Analysis and Geometry

      Volume: vol.17 Pages: 383-427

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Annals of Mathematics 169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Asymptotic behavior of flat surfaces in hyperbolic 3-space2009

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Journal of the Math.Soc.Japan 61

      Pages: 799-852

    • NAID

      10026998469

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [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
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] The geometry of fronts2009

    • Author(s)
      K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Annals of Mathematics vol.169

      Pages: 491-529

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] A_k singularities of wave fronts2009

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society 146

      Pages: 731-746

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Asymptotic behavior of flat urface in hyperbolic 3-space2009

    • Author(s)
      M. Kokubu, W. Rossman, M. Umehara, K. Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 61

      Pages: 799-852

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      KAKENHI-PROJECT-18540103
  • [Journal Article] New maximal surfaces in Minkowski 3-space with arbitrary genus and their cousins in de Sitter 3-space2009

    • Author(s)
      S.Fujimori, W.Rossman, M.Umehara, K.Yamada, S.D.Yang
    • Journal Title

      Results in Math. 56

      Pages: 41-82

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      KAKENHI-PROJECT-19204005
  • [Journal Article] Complete bounded holomorphic curves immersed in C2 with arbitrary genus2009

    • Author(s)
      Francisco Martin, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: vol.137 Pages: 3437-3450

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      KAKENHI-PROJECT-21340016
  • [Journal Article] Complete bounded null curves immersed in C^3 and PSL(2,C)2009

    • Author(s)
      F.Martin, M.Umehara, K.Yamada
    • Journal Title

      Calculus of Variations and Partial Differential Equations 36

      Pages: 119-139

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      KAKENHI-PROJECT-19204006
  • [Journal Article] Derived Schwarz map of the hypergeometric differential equation and a parallel family of flat fronts2008

    • Author(s)
      T. Sasaki, K. Yamada, M. Yoshida
    • Journal Title

      International Journal of Mathematics vol.19

      Pages: 847-863

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Singularities of Maxial surfaces2008

    • Author(s)
      S. Fujimori, K. Saji, M. Umehara and K. Yamada
    • Journal Title

      Math. Z. 259

      Pages: 827-848

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      K.Yamada, S.Fujimori, K.Saji, M.Umehara
    • Journal Title

      Mathematische Zeitschrift 259

      Pages: 827-848

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  • [Journal Article] Cuspidal cross caps and singularities of maximal surfaces2008

    • Author(s)
      S. Fujimori, K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Mathematische Zeitschrift 259

      Pages: 827-848

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  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      S.Fujimori, K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Math.Z. 259

      Pages: 827-848

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  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      S. Fujimori, K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Mathematische Zeitschrift vol.259

      Pages: 1827-848

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  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      S. Fujimori, K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Math. Z 259

      Pages: 827-848

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      KAKENHI-PROJECT-19204005
  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      K.Yamada, S.Fujimori, K.Saji, M.Umehara
    • Journal Title

      Math.Zeitschrift 259

      Pages: 827-848

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  • [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

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      KAKENHI-PROJECT-19204006
  • [Journal Article] Confluence of swallowtail singularities of the hyperboic Schwarz map defined by the hypergeometric differential equation2008

    • Author(s)
      M. Noro, T. Sasaki, K. Yamada, M. Yoshida
    • Journal Title

      Experimental Mathematics vol.17

      Pages: 191-204

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Hyperbolic Schwarz maps for the hypergeoometric differential equation2008

    • Author(s)
      T.Sasaki, M. Yoshida and K. Yamada
    • Journal Title

      Exp. Math. 17

      Pages: 269-282

    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] Confluence of swallowtail singularities of the hyperbolic Schwarz maps defined by the hypergeometric differential equation2008

    • Author(s)
      M.Noro, T. Sasaki, K. Yamada and M. Yoshida
    • Journal Title

      Experimentarl Math. 17

      Pages: 191-204

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Behavior of corank one singular points on weve fronts2008

    • Author(s)
      K. Saji, M. Umehara and K. Yamada
    • Journal Title

      Kyushu J. Math. 62

      Pages: 259-280

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Singularities of Maximal surfaces2008

    • Author(s)
      K. Yamada
    • Journal Title

      Math. Zeit 259

      Pages: 259-280

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      KAKENHI-PROJECT-19204006
  • [Journal Article] Singularities of maximal surfaces2008

    • Author(s)
      K. Yamada
    • Journal Title

      Mathematische Zeitschrift (To appear)

    • Peer Reviewed
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      KAKENHI-PROJECT-19204006
  • [Journal Article] Hyperbolic Schwarz map for the hypergeometric differential equation2008

    • Author(s)
      T. Sasaki, K. Yamada, M. Yoshida
    • Journal Title

      Experimental Mathematics vol.17

      Pages: 269-282

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      KAKENHI-PROJECT-18340019
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 59

      Pages: 265-299

    • NAID

      10019540696

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      KAKENHI-PROJECT-18540103
  • [Journal Article] The qaometry of fronts2007

    • Author(s)
      Kentaro SAJI, Kotaro TAMADA et al.
    • Journal Title

      Amals of Mathematics 未定(掲載決定)

    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] Point Configurations, Cremona Transformations and the Elliptic Difference Painleve Equation2007

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Seminaires et Congres 14

      Pages: 169-198

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      「研究成果報告書概要(和文)」より
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  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      K. Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 59

      Pages: 265-299

    • NAID

      10019540696

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204006
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      J. Math. Soc. Japan 59

      Pages: 265-299

    • NAID

      10019540696

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      「研究成果報告書概要(和文)」より
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      KAKENHI-PROJECT-15340024
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      J. Math. Soc. Japan 59

      Pages: 265-299

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      10019540696

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      KAKENHI-PROJECT-15340023
  • [Journal Article] Flat fronts in hyperbdic 3-space and their caustics2007

    • Author(s)
      Masatoshi KOKUBU, Kotaro YAMADA et al.
    • Journal Title

      Hournal of the Mathematical Society of Japan 59.1

      Pages: 265-299

    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M. Kokubu, W. Rossman, M. Umehara and K. Yamada
    • Journal Title

      Journal of the Mathematical Society of Japan 265--299

      Pages: 59-59

    • NAID

      10019540696

    • Peer Reviewed
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      KAKENHI-PROJECT-19204005
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      K.Yamada, M.Kokubu, W.Rossman, M.Umehara
    • Journal Title

      J.Math.Soc.Japan 59(1)

      Pages: 265-299

    • NAID

      10019540696

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      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M. Kokubu, M. Umehara, K. Yamada
    • Journal Title

      Journal of Mathematical Society of Japan vol.59(1)

      Pages: 265-299

    • NAID

      10019540696

    • Peer Reviewed
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      KAKENHI-PROJECT-18340019
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      K.Yamada, M.Kokubu, W.Rossman, M.Umehara
    • Journal Title

      Journal of the Mathematical Society of Japan 59

      Pages: 265-299

    • NAID

      10019540696

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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      KAKENHI-PROJECT-16204007
  • [Journal Article] The Geometry of Fronts2007

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Annals of Math. (To appear)

    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space and their caustics2007

    • Author(s)
      M.Kokubu , W. Rossman, M. Umehara and K. Yamada
    • Journal Title

      J. of Math. Soc. Japan 50

      Pages: 265-299

    • NAID

      10019540696

    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] Maximal surfaces with singularities in Mikowski space2006

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Hokkaido Math.J. 35

      Pages: 13-40

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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      KAKENHI-PROJECT-16204007
  • [Journal Article] Maximal surfaces with singularities in Minkowski space2006

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Hokkaido Mathematical Journal 35.1

      Pages: 13-40

    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] Maximal surfaces with singularities in Minkowski space2006

    • Author(s)
      M. Umehara, K. Yamada
    • Journal Title

      Hokkaido Mathematical Journal vol.35(1)

      Pages: 13-40

    • Peer Reviewed
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      KAKENHI-PROJECT-18340019
  • [Journal Article] Maximal surfaces with singularities in Mikowski space2006

    • Author(s)
      Umehara, K. Yamada
    • Journal Title

      Hokkaido Math. J. 35

      Pages: 13-40

    • Data Source
      KAKENHI-PROJECT-15340024
  • [Journal Article] Maximal surfaces with singularities in Mikowski space2006

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Hokkaido Math. J. 35

      Pages: 13-40

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      「研究成果報告書概要(和文)」より
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  • [Journal Article] Maximal surfaces with singularities in Minkowski space2006

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Hokkaido Mathematical Journal (in press)

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      M.Kokubu, W.Rossman, K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Pacific J.Math. 221 No.2

      Pages: 303-351

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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      KAKENHI-PROJECT-16204007
  • [Journal Article] Singularities'' of flat fronts on hyperbolic 3-space2005

    • Author(s)
      Masatoshi KOKUBU, Kotaro YAMADA et al.
    • Journal Title

      Pacific Journal of Mathematics 211・2

      Pages: 303-351

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Construction mean curvature 1 surfaces in H^3 with irregular ends2005

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Clay Mathematics Proceedings, Amer.Math.Soc. 2

      Pages: 561-584

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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  • [Journal Article] q-Painleve 方程式の超幾何解2005

    • Author(s)
      梶原健司, 増田哲, 野海正俊, 太田泰広, 山田泰彦
    • Journal Title

      数理解析研究所講究録 1422

      Pages: 77-98

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      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      Masatoshi KOKUBU, Wayne ROSSMAN, Kentaro SAJI, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Pacific Journal of Mathematics volume 221 no.2

      Pages: 303-351

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      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Symmetric CMC-1 surfaces with invequla ends2005

    • Author(s)
      Wayne ROSSMAN, Kotaro YAMADA et al.
    • Journal Title

      Clay Mathematical Proceedirys 2

      Pages: 561-584

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      M.Kokubu, W.Rossman, K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Pacific Journal of Mathematics 221

      Pages: 303-351

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Pacific Journal of Mathematics (in press)

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Constructing Mean Curvature 1 Surfaces in H^3 with Irregular Ends2005

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      CMI proceedings for the minimal surfaces conference at MSRI in the summer of 2001 2

      Pages: 561-584

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      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Symmetric CMC-1 surfaces with irregular ends2005

    • Author(s)
      Wayne ROSSMAN, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Clay Mathematical Proceedings volume 2

      Pages: 561-584

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      「研究成果報告書概要(欧文)」より
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      KAKENHI-PROJECT-14340024
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Pacific Journal of Mathematics 221・2

      Pages: 303-351

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Construction of hypergeometric solutions to the q-Painleve equations2005

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Int.Math.Res.Not. 24, 2005

      Pages: 1441-1463

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space2005

    • Author(s)
      M.Kokubu, W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Pacific J. Math. 221

      Pages: 303-351

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340024
  • [Journal Article] Constructing mean curvature 1 surfaces in H^3 with irregular ends.2005

    • Author(s)
      W.Rossmun, M.Umehara, K.Yamada
    • Journal Title

      Global Theory of Minimal Surfaces (ed. D.Hoffman) Clay Mathematics Proceedings (A.M.S.) 2

      Pages: 561-584

    • Data Source
      KAKENHI-PROJECT-15340024
  • [Journal Article] Singularites of flat fronts in hyperbolic 3-space2005

    • Author(s)
      M.Kokubu, W.Rossmsan, K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Pacific J.Math. 221・(2)

      Pages: 303-351

    • Data Source
      KAKENHI-PROJECT-15340024
  • [Journal Article] Constructing mean curvature l surfaces in H^3 with irregular ends2005

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Clay Mathematics Proceedings 2

      Pages: 561-584

    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Construction mean curvature 1 surfaces in H^3 with irregular ends2005

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Clay Mat.Proceedings Amer.Math.Soc. 2

      Pages: 561-584

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Hypergeometric solutions to q-Painleve equation2005

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      RIMS Kokyuroku 1422

      Pages: 77-98

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Constructing mean curvature 1 surfaces in H^3 with irregular ends2005

    • Author(s)
      Wayne ROSSMAN, Kotaro YAMADA et al.
    • Journal Title

      Clay Mathematical Proceedings 2

      Pages: 687-715

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Maximal surfaus in Minkowski space2005

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Hokkaido Jounal of Mathematics (in press)

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Construction of hypergeometric solutions to the q-Painleve equations2005

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Int.Math.Res.Not. 24

      Pages: 1441-1463

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Pacific Journal of Mathematics 206-1

      Pages: 149-175

    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Hypergeometric solutions to the q-Painleve equations2004

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Int.Math.Res.Not. 47

      Pages: 2497-2521

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      Masatoshi KOKUBU, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Pacific Journal of Mathematics volume 216, no.1

      Pages: 149-175

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      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Mean Curvature 1 Surfaces in H^3 with low total curvature I2004

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Hiroshima Math.J. 34

      Pages: 21-56

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      「研究成果報告書概要(和文)」より
    • Peer Reviewed
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      KAKENHI-PROJECT-16204007
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature I2004

    • Author(s)
      sW.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Hiroshima Journal of Mathematics 34

      Pages: 21-56

    • NAID

      110000016501

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Cubic pencils and Painleve hamiltonians2004

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Funkcial.Ekvac. 48(1)

      Pages: 147-160

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Hypergeometric solutions to the q-Painleve equations2004

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi, Y.Ohta, Y.Yamada
    • Journal Title

      Int.Math.Res.Not. No.47

      Pages: 2497-2521

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      Masatoshi KOKUBU, Kotaro YAMADA et al.
    • Journal Title

      Pacific Journal of Mathematics 216・1

      Pages: 149-175

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      Pacific Journal of Mathematic 216

      Pages: 149-175

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Cubic pencils and Painleve hamiltonians2004

    • Author(s)
      K.Kajiwara, T.Masuda, M.Noumi Y.Ohta, Y.Yamada
    • Journal Title

      Funkcial.Ekvac 48(1)

      Pages: 147-160

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      Pacific Journal of Mathematics 216

      Pages: 149-175

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      Pacific J. Math. 216

      Pages: 149-175

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340024
  • [Journal Article] Flat fronts in hyperbolic 3-space2004

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      Pacific J.Math. 216

      Pages: 149-175

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16204007
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature I2004

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Hiroshima Journal of Mathematics 34

      Pages: 21-56

    • NAID

      110000016501

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature II2003

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Tohoku Mathematical Journal 55

      Pages: 375-395

    • NAID

      110000027016

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Symmetric CMC-1 surfaces with irregular ends2003

    • Author(s)
      Wayne Rossmman, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Clay Mathematics Proceedings vol.3(to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] An elementary proof of Small's formula for null curves in PSL(2,C) and an analogue for Legendrian curves in PSL(2,C)2003

    • Author(s)
      M.Kokubu, M.Umehara, K.Yamada
    • Journal Title

      Osaka Journal of Mathematics 40

      Pages: 687-715

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Flat fronts in hyperbolic 3-space2003

    • Author(s)
      Masatoshi Kokubu, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Pacific Journal of Mathematics (to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature2003

    • Author(s)
      Wayne ROSSMAN, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Tohoku Mathematical Journal volume 55

      Pages: 375-395

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] An elementary proof of Small's formula for null curves in PSL(2,C) and an analogy( for Legendrian. curves in PSL(2,C)2003

    • Author(s)
      Masatoshi Kokubu, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Osaka Journal of Matheamtics vol 40

      Pages: 687-715

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Mean curoatuve 1 surfaces in hyperbolic 3-space with low total curuatnne2003

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Tohoku Mathematical Journal 55

      Pages: 375-395

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] An elementary proof of small's formula for null canals in PSL(2.β)and an analogue for leqendrian curves in PSL(2.α)2003

    • Author(s)
      Masaaki UMEHARA, Kotaro YAMADA et al.
    • Journal Title

      Osaka Journal of Mathematical 40

      Pages: 681-715

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] An elementary proof of Small's formula for null curves in PSL(2,C) and an analogue for Legendrian curves in PSL(2,C)2003

    • Author(s)
      Masatoshi KOKUBU, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Osaka Journal of Mathematics volume 55

      Pages: 375-395

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low totalcurvature II2003

    • Author(s)
      W.Rossman, M.Umehara, K.Yamada
    • Journal Title

      Tohoku Mathematical Journal 55

      Pages: 375-395

    • NAID

      110000027016

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature II2003

    • Author(s)
      Wayne Rossman, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Tohoku Mathematical Journal vol.55

      Pages: 375-395

    • NAID

      110000027016

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Minimal surfaces that attain equality in the Chern-Osserman inequality in "Differential Geometry and Integrable Systems"2002

    • Author(s)
      Masatoshi Kokubu, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Contemporary Mathematics, (Ed.M.Guest, R.Miyaoka., Y.Ohnita)(American Mathematical Society) 308

      Pages: 223-228

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] An analogue of minimal sin face theory in SL(n.C)/SU(h)2002

    • Author(s)
      Nasaro TAKAMASHI, Kotaro YAMADA et al.
    • Journal Title

      Transactions of the American Mathematical Society 354

      Pages: 1299-1325

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] An analogue of minimal surface theory in SL(2,C)/ SU(n)2002

    • Author(s)
      Masatoshi KOKUBU, Masaro TAKAHASHI, Masaaki UMEHARA, Kotaro YAMADA
    • Journal Title

      Transactions of the American Mathematical Society volume 354

      Pages: 1299-1325

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14340024
  • [Journal Article] Metrics of constant curvature 1 with three conical singularities on 2-sphere2000

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Illinois Journal of Mathematics vol.44

      Pages: 72-94

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Metrics of constant curvature 1…2000

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Illinois Journ.of Math. 44

      Pages: 72-94

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] General existence of minimal surfaces of genus zero with catenoidal ends and prescribed flux2000

    • Author(s)
      Shin Kato, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Communications in Analysis and Geometry vol.8

      Pages: 83-114

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Mean curvature 1 surfaces with low total curvature in hyperbolic 3-space2000

    • Author(s)
      Wayne Rossman, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Advanced Studies in Pure Mathematics, Minimal surfaces, Geometric Analysis and Symplictic Geometry 29

      Pages: 279-297

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Behavior of corank one singular points on wave front

    • Author(s)
      K. Saji, M. Umehara, K. Yamada
    • Journal Title

      Kyushu Journal of Mathematics vol.62(1)

      Pages: 259-280

    • NAID

      110006648027

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Journal Article] An analogue of minimal surface theory in SL(n, C)/SU(n)

    • Author(s)
      Masatoshi Kokubu, Masaro Takahashi, Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Transactions of the American Mathematical Society

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-12640078
  • [Journal Article] Maximal surfaces with singularities in Minkowski space

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Hokkaido Mathematical Journal (to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Singularities of flat fronts in hyperbolic 3-space

    • Author(s)
      M.Kokubu, W.Rossman, K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Hokkaido Mathematical Journal (to appear)

    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] The geometry of fronts

    • Author(s)
      K.Saji, M.Umehara, K.Yamada
    • Journal Title

      Annals of Mathematics To appear

    • Data Source
      KAKENHI-PROJECT-18540103
  • [Journal Article] Period problems for mean curvature 1 surfaces in H3

    • Author(s)
      M.Umehara, K.Yamada
    • Journal Title

      Advanced Studies in Pure Mathematics, Surveys on Geometry and Integrable Systems (to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340023
  • [Journal Article] Maximal surfaces with singularities in Minkowski space

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Hokkaido Mathematical Journal To appear

    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Maximal surfaces with singularities in Minkow ski space

    • Author(s)
      Masaaki Umehara, Kotaro Yamada
    • Journal Title

      Hokkaido Mathematical Journal (To appear)

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15540100
  • [Journal Article] Singularities of maximal surfaces

    • Author(s)
      Shoichi Fujimori, Kentaro Saji, Masaaki Umehara and Kotaro Yamada
    • Journal Title

      Mathematische Zeitschrift(掲載確定)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18540103
  • [Presentation] 特異点および時空内の零平均曲率曲面の幾何学2020

    • Author(s)
      山田 光太郎
    • Organizer
      日本数学会秋季総合分科会・総合講演
    • Invited
    • Data Source
      KAKENHI-PROJECT-16H03937
  • [Presentation] 流体力学的双対性を用いた時空の極大曲面に対する Bernstein 型の定理の拡張について2019

    • Author(s)
      赤嶺新太郎,梅原雅顕,山田光太郎
    • Organizer
      日本数学会2019年度年会(於:東京工業大学)
    • Data Source
      KAKENHI-PROJECT-26247005
  • [Presentation] Type changes of spacelike maximal surfaces in Minkowski 3-space to timelike surfaces2016

    • Author(s)
      Kotaro Yamada
    • Organizer
      福岡大学幾何学研究集会
    • Place of Presentation
      福岡大学セミナーハウス(福岡市中央区)
    • Year and Date
      2016-11-05
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Presentation] Type changes of spacelike maximal surfaces in Minkowski 3-space to timelike surfacesc2016

    • Author(s)
      Kotaro Yamada
    • Organizer
      8th International Meeting on Lorentzian Geometry, Malaga
    • Place of Presentation
      Universidad de Malaga (Malaga, Spain)
    • Year and Date
      2016-09-23
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Presentation] Analytic extensions of spacelike maximal surfaces in Minkowski 3-space to timelike surfaces2015

    • Author(s)
      Kotaro Yamada
    • Organizer
      Geometric Analysis in Geometry and Topology, 2015
    • Place of Presentation
      東京理科大学
    • Year and Date
      2015-11-10
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Presentation] Analytic extensions of spacelike maximal surfaces in Minkowski 3-space to timelike surfaces2015

    • Author(s)
      Kotaro Yamada
    • Organizer
      Singularities in Generic Geometry and applications Kobe - Kyoto 2015 (Valencia IV)
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2015-06-09
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Presentation] Analytic extensions of spacelike maximal surfaces in Minkowski 3-space to timelike surfaces2014

    • Author(s)
      Kotaro Yamada
    • Organizer
      The 10th Geometry Conference of the Frendship between China and Japan
    • Place of Presentation
      Fudan University
    • Year and Date
      2014-09-10
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400066
  • [Presentation] カスプ辺の微分幾何学的振る舞い2013

    • Author(s)
      山田光太郎
    • Organizer
      部分多様体論湯沢
    • Place of Presentation
      湯沢グランドホテル
    • Year and Date
      2013-11-23
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] カスプ辺の微分幾何学的振る舞い2013

    • Author(s)
      山田光太郎
    • Organizer
      Geometry and Something
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2013-11-04
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] New Examples of maximal surfaces in Lorentz Minkowski 3-space2011

    • Author(s)
      K.Yamada
    • Organizer
      VI International Meeting of Lorentzian Geometry
    • Place of Presentation
      Universidad de Granada(招待講演)
    • Year and Date
      2011-09-07
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] New Examples of maximal surfaces in Lorentz Minkowski 3-space2011

    • Author(s)
      Kotaro Yamada
    • Place of Presentation
      Universidad de Granada
    • Year and Date
      2011-09-07
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] Duality of wave fronts and applications2010

    • Author(s)
      K.Yamada
    • Organizer
      Progress in Surface Theory
    • Place of Presentation
      Math. Forschungsinstitut Oberwolfach
    • Year and Date
      2010-05-08
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] Duality of wave fronts and applications2010

    • Author(s)
      Kotaro Yamada
    • Organizer
      Progress in Surface Theory
    • Place of Presentation
      Mathematisches Forschungsinstitut Oberwolfach
    • Year and Date
      2010-05-08
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] Generalized conformally flat manifolds and their duality2010

    • Author(s)
      山田光太郎
    • Organizer
      Geometry and Something
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2010-10-10
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] Maximal surfaces in Lorentz-Minkowski space2009

    • Author(s)
      山田光太郎
    • Organizer
      Geometry and Something
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2009-11-21
    • Data Source
      KAKENHI-PROJECT-21340016
  • [Presentation] Asymtotic behavior of flat surfaces in hyperbolic 3-space2008

    • Author(s)
      Kotaro Yamada
    • Organizer
      Geometry Seminar
    • Place of Presentation
      Universidad de Granada
    • Year and Date
      2008-06-06
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Asymptotic behavior of flat surfaces in hyperbolic 3-space2008

    • Author(s)
      K. Yamada
    • Place of Presentation
      Unversidad de Granada, Spain.
    • Year and Date
      2008-06-06
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Spacelike mean curvature one surfaces in de Sitter 3-space2007

    • Author(s)
      K. Yamada
    • Place of Presentation
      Universidad de Granada
    • Year and Date
      2007-05-10
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Spacelike mean curvature 1 surfaces in de Sitter 3-space2007

    • Author(s)
      K. Yamada
    • Place of Presentation
      Mathematische Forschungsinstitut Oberwolfach, Germany
    • Year and Date
      2007-05-02
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Spacelike mean curvature one surface in de Sitter 3-space2007

    • Author(s)
      K. Yamada
    • Place of Presentation
      Geometry Seminar, Northeastern University, Shenyang, China.
    • Year and Date
      2007-10-11
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Spacelike mean curvature one surfaces in de Sitter 3-space2007

    • Author(s)
      山田光太郎
    • Organizer
      部分多様体論と可積分系および幾何解析とのつながり
    • Place of Presentation
      京都大学数理解析研究所.
    • Year and Date
      2007-07-11
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Spacelike mean curvature 1 surfaces in de Sitter 3-space2007

    • Author(s)
      Kotaro Yamada
    • Organizer
      Progress in Surface Theory
    • Place of Presentation
      Math. Forschungsinst. Oberwolfach
    • Year and Date
      2007-05-02
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Flat fronts in hyperbolic 3-space2006

    • Author(s)
      山田光太郎
    • Organizer
      北海道大学集中講義オーバーヴュー
    • Place of Presentation
      北海道大学
    • Year and Date
      2006-11-13
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Global properties of flat fronts in hyperbolic 3-space2006

    • Author(s)
      山田光太郎
    • Organizer
      特異点論セミナー
    • Place of Presentation
      北海道大学
    • Year and Date
      2006-11-17
    • Data Source
      KAKENHI-PROJECT-18340019
  • [Presentation] Flat fronts in hyperbolic 3-space-behavior of ends2006

    • Author(s)
      山田光太郎
    • Organizer
      幾何学阿蘇研究集会
    • Place of Presentation
      休暇村南阿蘇
    • Year and Date
      2006-09-12
    • Data Source
      KAKENHI-PROJECT-18340019
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  • 31.  MASHIMO Katsuya (50157187)
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  • 32.  MABUCHI Toshiki (80116102)
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  • 34.  GOTO Ryushi (30252571)
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  • 37.  KIMURA Hironobu (40161575)
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  • 38.  KOHNO Mitsuhiko (30027370)
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  • 39.  YAMAKI Hiroyoshi (60028199)
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  • 40.  ITOH Mitsuhiro (40015912)
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  • 41.  TAKAYAMA Shigeharu (20284333)
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  • 43.  MIYAKAWA Teturo (10033929)
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  • 48.  FUJIOKA Atsushi (30293335)
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  • 49.  NISHINOU Takeo (50420394)
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  • 51.  SAJI Kentaro (70451432)
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  • 53.  KENMOTSU Katsuei (60004404)
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  • 54.  OGIUE Koichi (10087025)
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  • 55.  OKA Yukimasa (50089140)
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  • 56.  ISHIKAWA Susumu (10039258)
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  • 57.  KAWAI Shigeo (30186043)
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  • 58.  MAEBASHI Toshiyuki (90032804)
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  • 59.  TASAKI Hiroyuki (30179684)
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  • 60.  円藤 章 (30032452)
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  • 61.  渡辺 アツミ (90040120)
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  • 62.  TAKAYAMA Haruko (90274430)
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  • 63.  ENOKI Ichiro (20146806)
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  • 64.  SASAKI Takeshi (00022682)
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  • 65.  YOSHIDA Masaaki (30030787)
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  • 66.  IZUMIYA Shyuichi (80127422)
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  • 67.  YAMAMOTO Ou (20291700)
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  • 68.  IRIE Hiroshi (30385489)
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  • 69.  KASUE Atsushi (40152657)
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  • 75.  CHO Koji (10197634)
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  • 76.  MAEDA Sadahiro (40181581)
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  • 85.  横井 嘉孝 (50040481)
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  • 114.  Li Haizhong
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  • 115.  Wei Guoxin
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  • 117.  直川 耕祐
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    # of Collaborated Products: 2 results
  • 118.  赤嶺 新太郎
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