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Geometry of moduli spaces for low dimensional manifolds

Research Project

Project/Area Number 24340009
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Geometry
Research InstitutionGakushuin University (2013-2016)
Tohoku University (2012)

Principal Investigator

Yamada Sumio  学習院大学, 理学部, 教授 (90396416)

Co-Investigator(Kenkyū-buntansha) 大鹿 健一  大阪大学, 理学(系)研究科(研究院), 教授 (70183225)
山口 孝男  京都大学, 理学(系)研究科(研究院), 教授 (00182444)
石毛 和弘  東北大学, 大学院・理学研究科, 教授 (90272020)
Research Collaborator PAPADOPOULOS Athanase  ストラスブルグ大学, 高等数学研究所, 研究ディレクター
Project Period (FY) 2012-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords微分幾何学 / 双曲計量 / アインシュタイン計量 / 一般相対性理論 / タイヒミュラー空間 / CAT(0)空間 / 調和写像 / モジュライ / モジュライ空間 / 3次元多様体 / リーマン面 / 崩壊理論 / 双曲幾何学 / アインシュタイン方程式 / 凸幾何学 / コーシー問題 / ローレンツ幾何学 / 射影幾何学 / リーマン計量 / 共形幾何 / 射影幾何 / 正スカラー曲率 / ベイユ・ピーターソン幾何学 / CAT(0)幾何学 / 共形構造 / コットン・テンソル / ヒルベルト計量 / リッチ流
Outline of Final Research Achievements

Before the 19th century, the objects of mathematical interests tended to be individual phenomenon, whether it was a curve, a function, or a shape. In contrast, in the context of modern mathematics, the importance of analyzing a FAMILY of objects concurrently was recognized, and systematically pursued. In this research project, we focused on the topic of Einstein metrics in the general relativity, and that of hyperbolic metrics defined on two dimensional manifolds. Consequently we obtained a new and complete understanding of the moduli space consisting of all the static solutions to the Einstein-Maxwell equations, and a new connection between the global aspects of the Teichmueller theory and convex geometry and convex analysis.

Report

(6 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (113 results)

All 2017 2016 2015 2014 2013 2012 Other

All Int'l Joint Research (9 results) Journal Article (42 results) (of which Int'l Joint Research: 13 results,  Peer Reviewed: 38 results,  Open Access: 14 results,  Acknowledgement Compliant: 17 results) Presentation (61 results) (of which Int'l Joint Research: 18 results,  Invited: 47 results) Funded Workshop (1 results)

  • [Int'l Joint Research] IRMA ストラスブルグ大学(フランス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学バークレー校(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] ローザンヌ工科大学(スイス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] オバーボルファッハ数学研究所(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] 清華大国際数学研究(海南島)(中国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Strasbourg/IRMA, Strasbourg(France)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] KIAS(韓国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Ariel University(Israel)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Stonybrook University/MSRI/Stanford University(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Proof of the Riemannian Penrose inequality with charge for multiple black holes2017

    • Author(s)
      Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      Journal of Differential Geometry

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Deforming hyperbolic hexagons with applications to the arc and the Thurston metrics on Teichmueller spaces2017

    • Author(s)
      Athanase Papadopoulos, Sumio Yamada
    • Journal Title

      Monatshefte fur Mathematik

      Volume: 182 Issue: 4 Pages: 913-939

    • DOI

      10.1007/s00605-017-1023-4

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Measurable Rigidity for Kleinian groups2017

    • Author(s)
      Woojin Jeon, Ken'ichi Ohshika
    • Journal Title

      Ergodic Th. Dyn. Sys.

      Volume: 未定 Issue: 8 Pages: 2498-2511

    • DOI

      10.1017/etds.2015.15

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Une formule diff\’{e}rentielle de la longueur extr\’{e}male et ses applications2017

    • Author(s)
      Hideki Miyachi, Ken’ichi Ohshika,
    • Journal Title

      Ann Math Blaise Pascal

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Subgroups of mapping class groups related to Heegaard splittings and bridge decompositions2016

    • Author(s)
      Ken'ichi Ohshika, Makoto Sakuma
    • Journal Title

      Geometriae Dedicata

      Volume: 180 Issue: 1 Pages: 117-134

    • DOI

      10.1007/s10711-015-0094-4

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Convergence of freely decomposable Kleinian groups2016

    • Author(s)
      Inkang Kim, Cyril Lecuire, Ken'ichi Ohshika
    • Journal Title

      Inventiones Mathematicae

      Volume: 204 Issue: 1 Pages: 83-131

    • DOI

      10.1007/s00222-015-0609-5

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Conical limit points and the Cannon-Thurston map2016

    • Author(s)
      Woojin Jeon, Illya Kapovich,Christopher Leninger, Ken’ichi Ohshika
    • Journal Title

      Conformal Geometry and Dynamics

      Volume: 20 Issue: 4 Pages: 58-80

    • DOI

      10.1090/ecgd/294

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Proof of the Riemannian Penrose inequality with charge for multiple black holes2016

    • Author(s)
      Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      Journal of Differential Geometry

      Volume: 未定

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Null-set compactifications of Teichmuller spaces2016

    • Author(s)
      V. Alberge, H. Miyachi and Ken'ichi
    • Journal Title

      Handbook of Teichmuller theory, (Irma Lectures in Mathematics and Theoretical Physics) European Mathematical Society

      Volume: VI Pages: 71-94

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Conical limit points and the Cannon-Thurston map2016

    • Author(s)
      W.Jeon, C.Leninger, I. Kapovichi and Keni'chi Ohshika
    • Journal Title

      Conformal Geometry and Dynamics

      Volume: 未定

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Riemannian Penrose inequality with charge for multiple black holes2015

    • Author(s)
      Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      Contemporary Mathematics

      Volume: 653 Pages: 219-226

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Extensions of the charged Riemannian Penrose inequality.2015

    • Author(s)
      Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      Classical and Quantum Gravity

      Volume: 32 Issue: 3 Pages: 035019-035019

    • DOI

      10.1088/0264-9381/32/3/035019

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Weil-Petersson Funk metric on Teichmueller space2015

    • Author(s)
      Hideki Miyachi, Ken'ichi Ohshika, and Sumio Yamada
    • Journal Title

      Handbook of Hilbert Geometry, European Mathematical Society

      Volume: 1 Pages: 339-352

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Funk and Hilbert geometries in spaces of constant curvature2015

    • Author(s)
      Athanase Papadopoulos and Sumio Yamada
    • Journal Title

      Handbook of Hilbert Geometry (Irma Lectures in Mathematics and Theoretical Physics) European Mathematical Society

      Volume: 1 Pages: 353-382

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] On the projective geometry of constant curvature spaces2015

    • Author(s)
      Athanase Papadopoulos and Sumio Yamada
    • Journal Title

      Sophus Lie and Felix Klein : The Erlangen Program and Its Impact in Mathematics and Physics (Irma Lectures in Mathematics and Theoretical Physics) European Mathematical Society

      Volume: 1 Pages: 237-256

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Geometric limits of Kleinian groups and their applications2015

    • Author(s)
      Ken'ichi Ohshika
    • Journal Title

      Handbook of Group Actions, International Press

      Volume: 2 Pages: 245-270

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On Klein-Maskit Combination Theorem in space II2015

    • Author(s)
      Liuan Li, Ken'ichi Ohshika and Xiantao Wang
    • Journal Title

      Kodai J. Math.

      Volume: 38 Pages: 1-22

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Local and global aspects of Weil-Petersson geometry.2015

    • Author(s)
      Sumio Yamada
    • Journal Title

      Handbook of Teichmuller Theory, edited by Athanase Papadopoulos, European Mathematical Society

      Volume: IV Pages: 43-112

    • DOI

      10.4171/117-1/2

    • ISBN
      9783037191170, 9783037196175
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Funk and Hilbert geometries in spaces of constant curvature.2015

    • Author(s)
      Athanase Papadopoulos and Sumio Yamada,
    • Journal Title

      Handbook of Hilbert Geometry edited by Athanase Papadopoulos and Marc Troyanov, European Mathematical Society

      Volume: 1 Pages: 353-382

    • DOI

      10.4171/147-1/13

    • ISBN
      9783037191477, 9783037196472
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Collaspsing three-dimensional closed Alexandrov spaces.2015

    • Author(s)
      A. Mitsuishi and T. Yamaguchi
    • Journal Title

      Transactions of AMS.

      Volume: 367 Issue: 4 Pages: 2339-2410

    • DOI

      10.1090/s0002-9947-2014-06091-1

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Weil-Petersson Funk metric on Teichmuller space2014

    • Author(s)
      H. Miyachi, K. Ohshika and S. Yamada
    • Journal Title

      Handbook of Hilbert geometry, IRMA EMS

      Volume: 22 Pages: 339-352

    • DOI

      10.4171/147-1/12

    • ISBN
      9783037191477, 9783037196472
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 「相対性理論とベクトル解析」2014

    • Author(s)
      山田澄生
    • Journal Title

      数理科学 特集:「ベクトル解析の力」 - 多彩な問題を通じてその姿に迫る ー 8月号

      Volume: 614 Pages: 52-57

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Reduced Bers boundaries of Teichmuller spaces.2014

    • Author(s)
      K. Ohshika
    • Journal Title

      Ann. Inst. Fourier

      Volume: 64 Issue: 1 Pages: 145-176

    • DOI

      10.5802/aif.2842

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Primitive stable representations of free Kleinian groups2014

    • Author(s)
      W. Jeon, I. Kim, K. Ohshika and C. Lecuire
    • Journal Title

      Israel J. Math.

      Volume: 199-2 Issue: 2 Pages: 841-866

    • DOI

      10.1007/s11856-013-0062-3

    • Related Report
      2014 Annual Research Report 2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Primitive stable closed hyperbolic 3-manifolds2014

    • Author(s)
      I. Kim, C. Lecuire and K. Ohshika
    • Journal Title

      Topology Appl.

      Volume: 172 Pages: 68-71

    • DOI

      10.1016/j.topol.2014.05.003

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Compactifications of Teichmuller spaces2014

    • Author(s)
      K. Ohshika
    • Journal Title

      Handbook of Teichmuller theory, IRMA, EMS

      Volume: IV Pages: 235-254

    • DOI

      10.4171/117-1/6

    • ISBN
      9783037191170, 9783037196175
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stability of strongly Lipschitz contractible balls in Alexandrov spaces.2014

    • Author(s)
      A. Mitsuishi and T. Yamaguchi
    • Journal Title

      Math. Zeitschrift

      Volume: 277 Issue: 3-4 Pages: 995-1009

    • DOI

      10.1007/s00209-014-1289-3

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Locally strongly Lipschitz contractibility of Alexandrov spaces.2014

    • Author(s)
      A. Mitsuishi and T. Yamaguchi
    • Journal Title

      Pacific Journal of Math.

      Volume: 270 Issue: 2 Pages: 393-421

    • DOI

      10.2140/pjm.2014.270.393

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Convex bodies in Euclidean and Weil-Petersson geometries.2014

    • Author(s)
      Sumio Yamada
    • Journal Title

      Proc. Amer. Math. Soc.

      Volume: 142 Issue: 2 Pages: 603-616

    • DOI

      10.1090/s0002-9939-2013-11841-1

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 一般相対性理論に現れる極小曲面について2014

    • Author(s)
      山田澄生
    • Journal Title

      RIMS 研究集会報告集

      Volume: 1880 Pages: 687-736

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Reduced Bers boundaries of Teichmuller spaces2014

    • Author(s)
      Ken'ichi Ohshika
    • Journal Title

      Ann. Insti. Fourier

      Volume: 未定

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lower bounds for the area of black holes in terms of mass, charge, and angular momentum2013

    • Author(s)
      Sergio Dain, Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      Physical Review D

      Volume: 88 Issue: 2 Pages: 24048-24048

    • DOI

      10.1103/physrevd.88.024048

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Funk and Hilbert geometries for spaces of constant curvature.2013

    • Author(s)
      Athanase Papadopoulos, Sumio Yamada
    • Journal Title

      Monatshefte fur Mathematik

      Volume: 172 Issue: 1 Pages: 97-120

    • DOI

      10.1007/s00605-013-0513-2

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Riemannian Penrose inequality with charge and the cosmic censorship conjecture2013

    • Author(s)
      Marcus Khuri, Gilbert Weinstein, Sumio Yamada
    • Journal Title

      RIMS 研究集会報告集

      Volume: 1862 Pages: 63-66

    • Related Report
      2013 Annual Research Report
  • [Journal Article] A note on the rigidity of unmeasured lamination spaces2013

    • Author(s)
      Ken'ichi Ohshika
    • Journal Title

      Proc. AMS

      Volume: 141 Issue: 12 Pages: 4385-4389

    • DOI

      10.1090/s0002-9939-2013-11670-9

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Funk and Hilbert geometries for spaces of constant curvature

    • Author(s)
      Sumio Yamada, and Athanase Papadopoulos
    • Journal Title

      Monatshefte fur Mathematik

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variational formulations of the Funk and Apollonian weak metrics on convex sets.

    • Author(s)
      Sumio Yamada
    • Journal Title

      京都大学数理解析研究所講究録別冊

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A survey of the Funk and Hilbert geometries of convex sets in spaces of constant curvature spaces

    • Author(s)
      Sumio Yamada, and Athanase Papadopoulos
    • Journal Title

      Handbook of Hilbert/Funk geometry

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Weil-Petersson Funk metric on Teichmuller space.

    • Author(s)
      Hideki Miyachi, Kenichi Ohshika, and Sumio Yamada
    • Journal Title

      Handbook of Hilbert/Funk geometry

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A note on on the rigidity of unmeasured lamination spaces

    • Author(s)
      Ken'ichi Ohshika
    • Journal Title

      Proceedings of American Mathematical Scoiety

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reduced Bers boundaries of Teichmuller spaces

    • Author(s)
      Ken'ichi Ohshika
    • Journal Title

      Annales de l'institut Fourier

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Primitive stable representations of free Kleinian groups

    • Author(s)
      Woojin Jeon, Inkang Kim, Ken'ichi Ohshika, with Cyril Lecuire (Woojin Jeon)
    • Journal Title

      Israel Journal of Mathematics

      Volume: (未定) (掲載確定)

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Deformation spaces of Kleinian groups and what are continuous and discontinuous there2017

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Moduli spaces and applications in geometry, topology, analysis and mathematical physics
    • Place of Presentation
      Morningside Center of Mathematics, Chinese Academy of Science,Beijing, China
    • Year and Date
      2017-02-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Construction of stationary solutions to the 4+1 Einstein equation with non-spherical blackholes2017

    • Author(s)
      Sumio Yamada
    • Organizer
      Tokyo & Berkeley Mathematics Workshop, Differential Equations and mathematical Physics
    • Place of Presentation
      東京大学
    • Year and Date
      2017-01-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Penrose inequality for the Einstein-Maxwell equation2016

    • Author(s)
      Sumio Yamada
    • Organizer
      Workship "Geometric Inequality on Riemannian Manifolds and Related Topics"
    • Place of Presentation
      Pusan, Korea
    • Year and Date
      2016-11-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アインシュタイン・マックスウェル方程式の幾何学2016

    • Author(s)
      山田澄生
    • Organizer
      日本数学会幾何学分科会シンポジウム
    • Place of Presentation
      岡山大学
    • Year and Date
      2016-08-29
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Geometric realisation for degenerations of hyperbolic structures2016

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Workshop on Moduli Spaces of Geometric Structures,
    • Place of Presentation
      IMS, National University of Singapore, Singapore
    • Year and Date
      2016-08-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reduction of boundaries of Teichmueller spaces, 25 July 2016,2016

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Workshop on Grothendieck-Teichmueller Theories
    • Place of Presentation
      Chern Institute of Mathematics, Nankai University, Tianjin, China
    • Year and Date
      2016-07-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Metric geometry on the positive orthant2016

    • Author(s)
      Sumio Yamada
    • Organizer
      French-Japanese workshop on Teichmueller spaces and surface mapping class group
    • Place of Presentation
      University of Strasbourg, France.
    • Year and Date
      2016-06-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 3-manifolds fibring over the circle2016

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      86th rencontre entre les mathmaticiens et les physiciens
    • Place of Presentation
      IRMA Universite de Strasbourg
    • Year and Date
      2016-06-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Inradius collapsed manifolds2016

    • Author(s)
      Takao Yamaguchi
    • Organizer
      Riemannian Geometry Seminar
    • Place of Presentation
      MSRI, USA
    • Year and Date
      2016-02-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On Riemannian Geometry of the Einstein Equation2016

    • Author(s)
      Sumio Yamada
    • Organizer
      CiRfSEワークショップ New Frontiers in Mathematical Physics
    • Place of Presentation
      筑波大学数理物質融合科学センター
    • Year and Date
      2016-01-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Deformation of right angled hexagons and Thurston/Arc metrics on Teichmueller space.2016

    • Author(s)
      Sumio Yamada
    • Organizer
      Workshop on Teichmueller Theory and Low-Dimensional Topology
    • Place of Presentation
      S.T. Yau Mathematical Sciences Center, 海南島、中国
    • Year and Date
      2016-01-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アインシュタイン方程式のコーシー問題に関する幾何学的考察2015

    • Author(s)
      Sumio Yamada
    • Organizer
      数学専攻談話会
    • Place of Presentation
      東北大学大学院理学研究科
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Deformation spaces of Kleinian groups2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Topology and Groups
    • Place of Presentation
      University of Goa, India
    • Year and Date
      2015-10-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Variational aspect of Teichmueller map2015

    • Author(s)
      Sumio Yamada
    • Organizer
      Workshop on Finsler geometry and applications to low-dimensional geometry and topology and moduli spaces
    • Place of Presentation
      University of Cagliari, Cagliari, Italy.
    • Year and Date
      2015-09-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Teichmuller space; its asymptotic geometry, compactifications, and combinatorial models, ( 3 talks )2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Finsler geometry and applications to low-dimensional geometry and topology and moduli spaces
    • Place of Presentation
      University of Cagliari, Italy
    • Year and Date
      2015-09-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Various compactifications of Teichmuller spaces and their relations (3 talks)2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Geometric structures and related topics
    • Place of Presentation
      KIAS, YangYang, 韓国
    • Year and Date
      2015-08-25
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Accumulation of closed 3-manifolds within character varieties2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Geometric Topology Fair in Korea、A workshop on geometric group theory & low-dimensional topology
    • Place of Presentation
      Gyeonju, K-Hotel, 韓国
    • Year and Date
      2015-08-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the moduli space of the Cauchy initial data for the Einstein equation2015

    • Author(s)
      Sumio Yamada
    • Organizer
      Summer School on multiscale and geometric analysis
    • Place of Presentation
      Sapporo International Convention Center, 札幌
    • Year and Date
      2015-07-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The origin of the notion of manifold2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Conference "Geometry in History"
    • Place of Presentation
      Universte de Strasbourg, France
    • Year and Date
      2015-06-11
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Geography of closed 3-manifolds within character varieties2015

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      French-Japanese workshop on Teichmuller spaces and surface mapping class groups
    • Place of Presentation
      Universte de Strasbourg, France
    • Year and Date
      2015-06-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Convex bodies and geometry of some associated Minkowski functionals2015

    • Author(s)
      Sumio Yamada
    • Organizer
      PDE実解析研究会
    • Place of Presentation
      東京大学数理科学研究科
    • Year and Date
      2015-05-19
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Convex bodies in euclidean, spherical, hyperbolic and moduli spaces2015

    • Author(s)
      Sumio Yamada
    • Organizer
      Differential Equation Seminar
    • Place of Presentation
      Ariel University, Israel
    • Year and Date
      2015-05-06
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Hyperbolic 3-manifolds and the Schottky space viewed as lying in the character variety.2014

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Group Action Forum Tsinghua-Sanya Mathematical Forum
    • Place of Presentation
      Sanya, China
    • Year and Date
      2014-12-16
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Continuous deformation of geometric limits and the Maskit combination spaces.2014

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Atelier de travail franco-franco-japonais sur la geometrie des groupes modulaire et des espaces de Teichmuller
    • Place of Presentation
      Osaka, Japan.
    • Year and Date
      2014-10-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Geometry of Kleinian groups and its applications.2014

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      MSJ Autumn meeting, plenary address
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2014-09-26
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Lipschitz homotopy structure of Alexandrov spaces.2014

    • Author(s)
      Takao Yamaguchi
    • Organizer
      Trends in Modern Geometry
    • Place of Presentation
      東京大学、東京
    • Year and Date
      2014-07-08
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 「アレクサンドロフ空間のリプシッツ・ホモトピー構造」2014

    • Author(s)
      山口孝男
    • Organizer
      談話会
    • Place of Presentation
      京都大学、京都
    • Year and Date
      2014-06-25
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 境界つき3次元アレクサンドロフ空間の崩壊.2014

    • Author(s)
      山口孝男
    • Organizer
      微分トポロジーセミナー
    • Place of Presentation
      京都大学、京都
    • Year and Date
      2014-05-20
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] The work of Thurston on Kleinian groups. (4 talks)2014

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Master Class : Around Thurston-Grothendieck-Teichmuller theories, IRMA
    • Place of Presentation
      Strasbourg, France
    • Year and Date
      2014-05-12 – 2014-05-15
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Convex geometry on constant curvature spaces2013

    • Author(s)
      Sumio Yamada
    • Organizer
      Tsinghua-Sanya International Mathematics Forum
    • Place of Presentation
      三亞、中国(招待講演)
    • Year and Date
      2013-01-08
    • Related Report
      2012 Annual Research Report
  • [Presentation] An Introduction to Geometric Analysis of Teichmuller spaces 1-V2013

    • Author(s)
      Sumio Yamada
    • Organizer
      Trimester thematic program "Teichmuller Theory"
    • Place of Presentation
      Erwin Schroe dinger International Institute for Mathematical Physics ウィーン、オーストリア(招待講演)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Automorphism groups of Heegaard splittings and bridge decompositions2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Workshop on Hyperbolic geometry, geometric structures and bounded cohomology
    • Place of Presentation
      KIAS、ソウル、韓国(招待講演)
    • Year and Date
      2012-11-22
    • Related Report
      2012 Annual Research Report
  • [Presentation] Subgroups of mapping class groups generated by Dehn twists around meridians on splitting surfaces2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Aspects of representation theory in low-dimensional topology and 3-dimensional invariants
    • Place of Presentation
      Carry-le-Rouet、フランス(招待講演)
    • Year and Date
      2012-11-08
    • Related Report
      2012 Annual Research Report
  • [Presentation] Deformation spaces of Kleinian groups and group actions2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      eometry of Moduli Space of Low Dimensional Manifolds
    • Place of Presentation
      京都大学数理解析研究所(招待講演)
    • Year and Date
      2012-10-30
    • Related Report
      2012 Annual Research Report
  • [Presentation] On Riemannian and convex geometries of Teichmuller space2012

    • Author(s)
      Sumio Yamada
    • Organizer
      Istanbul Workshop on Teichmuller Theory
    • Place of Presentation
      ガラタサライ大学、イスタンブール、トルコ(招待講演)
    • Year and Date
      2012-10-12
    • Related Report
      2012 Annual Research Report
  • [Presentation] Topological structure of deformation spaces for Kleinian groups and beyond2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      KMS autumn meeting
    • Place of Presentation
      Daejeon Convention Center,韓国(招待講演)
    • Year and Date
      2012-10-05
    • Related Report
      2012 Annual Research Report
  • [Presentation] アレクサンドロフ空間の局所リプシッツ可縮性とその応用2012

    • Author(s)
      三石史人、山口孝男
    • Organizer
      日本数学会2012年度秋季総合分科会、幾何学分科会
    • Place of Presentation
      九州大学(一般講演)
    • Year and Date
      2012-09-20
    • Related Report
      2012 Annual Research Report
  • [Presentation] クライン群の変形空間の位相構造2012

    • Author(s)
      大鹿健一
    • Organizer
      日本数学会(幾何学分科会特別講演)
    • Place of Presentation
      九州大学(招待講演)
    • Year and Date
      2012-09-19
    • Related Report
      2012 Annual Research Report
  • [Presentation] タイヒミュラー空間のWeil-Petersson凸幾何学2012

    • Author(s)
      山田 澄生
    • Organizer
      幾何学シンポジウム
    • Place of Presentation
      九州大学(招待講演)
    • Year and Date
      2012-08-30
    • Related Report
      2012 Annual Research Report
  • [Presentation] Actions of isomorphism groups of Heegaard splittings 0n projective lamination spaces2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      KAIST Geometric Topology Fair
    • Place of Presentation
      KAIST、韓国(招待講演)
    • Year and Date
      2012-08-13
    • Related Report
      2012 Annual Research Report
  • [Presentation] On the Weil-Petersson convex geometry of Teichmuller spaces2012

    • Author(s)
      Sumio Yamada
    • Organizer
      The conference of group actions and applications in geometry, topology, and analysis
    • Place of Presentation
      昆明理工大学、中国(招待講演)
    • Year and Date
      2012-07-26
    • Related Report
      2012 Annual Research Report
  • [Presentation] Two kinds of reduced boundaries of Teichmuller spaces and their symmetries2012

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      The conference of Group Actions 1n Geometry, Topology and Analysis
    • Place of Presentation
      昆明理工大学、中国(招待講演)
    • Year and Date
      2012-07-24
    • Related Report
      2012 Annual Research Report
  • [Presentation] On variational formulations of the Funk and Barbilian metrics2012

    • Author(s)
      Sumio Yamada
    • Organizer
      Trimester thematic program "Teichmuller Theory"
    • Place of Presentation
      Erwin Schroe dinger International Institute for Mathematical Physics ウィーン、オーストリア(招待講演)
    • Year and Date
      2012-02-25
    • Related Report
      2012 Annual Research Report
  • [Presentation] 一般相対性理論に現れる極小曲面について

    • Author(s)
      山田澄生
    • Organizer
      RIMS研究集会「部分多様体の微分幾何学の深化」
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On variational characterizations of exact solutions in general relativity

    • Author(s)
      Sumio Yamada
    • Organizer
      The 6th Pacific RIM Conference on Mathematics
    • Place of Presentation
      札幌コンベンションセンター
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Convexity associated with the Weil-Petersson geometry

    • Author(s)
      Sumio Yamada
    • Organizer
      The XXII Rolf Nevanlinna Colloquim
    • Place of Presentation
      Helsinki University, フィンランド
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Evolving Riemannian metrics toward static solutions of the Einstein equation

    • Author(s)
      Sumio Yamada
    • Organizer
      RIMS研究集会「偏微分方程式の解の幾何」
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Variational characterizations of exact solutions of the Einstein equation

    • Author(s)
      山田澄生
    • Organizer
      幾何コロキウム
    • Place of Presentation
      東京大学数理科学研究科
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Variational characterizations of exact solutions of the Einstein equation

    • Author(s)
      Sumio Yamada
    • Organizer
      Taiwan International Conference on Geometry
    • Place of Presentation
      台湾国立大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 「アインシュタイン方程式100年ー物理と幾何と解析の邂逅の場としてー」

    • Author(s)
      山田澄生
    • Organizer
      語ろう「数理解析」セミナー
    • Place of Presentation
      明治大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On Penrose-type inequalities in General Relativity

    • Author(s)
      Sumio Yamada
    • Organizer
      The Second Japanese-Spanish Workshop on Differential Geometry
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On Geometry of Weil-Petersson Funk metric

    • Author(s)
      Sumio Yamada
    • Organizer
      "New Trends in Teichmuller Theory and Mapping Class Groups"
    • Place of Presentation
      Oberwolfach数学研究所(MFO) Germany
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Geometric completion for deformation spaces of Kleinian groups

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Analysis and Geometry of Riemann Surfaces and Related Topics
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Geometric completion for quasi-Fuchsian spaces

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      AMC 2013
    • Place of Presentation
      Pusan BEXCO, Korea
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Geometric limits and deformation spaces of Kleinian groups

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      KAIST GT Fair
    • Place of Presentation
      Jeonju, Korea
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Geometric completion for deformation spaces of Kleinian groups

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      Japanese Turkish Joint Geometry Meeting
    • Place of Presentation
      Galatasaray University, Istanbul, Turkey
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Automorphism groups of Heegaard splittings and their actions

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      離散群と双曲空間の複素解析とトポロジー
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Subgroups of mapping class groups associated to Heegaard splittings and their actions on projective lamination spaces

    • Author(s)
      Ken'ichi Ohshika
    • Organizer
      New Trends in Teichmuller Theory and Mapping Class Groups
    • Place of Presentation
      Oberwolfach数学研究所(MFO), Germany
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Inverse spectral problems for collapsed manifolds

    • Author(s)
      Takao Yamaguchi
    • Organizer
      確率論と幾何学
    • Place of Presentation
      京都大学理学研究科
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 崩壊とスペクトル逆問題

    • Author(s)
      Takao Yamaguchi
    • Organizer
      第60回幾何学シンポジウム 基調講演
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Collapsing three-dimensional Alexandrov spaces 京都大学数理解析研究所

    • Author(s)
      Takao Yamaguchi
    • Organizer
      低次元多様体モジュライ空間の幾何学
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Funded Workshop] Geometry of Moduli Sopaces of Low Dimensional Manifolds2016

    • Place of Presentation
      数理解析研究所、京都大学
    • Year and Date
      2016-12-12
    • Related Report
      2016 Annual Research Report

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Published: 2012-04-24   Modified: 2023-03-16  

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