Researcher Search Results Ken'ichi Ohshika Ken'ichi Ohshika (大鹿 健一) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationFaculty of Science, Department of Mathematics, Gakushuin UniversityThe University of OsakaDegree(BLANK)(The University of Tokyo)J-GLOBAL ID200901012308978709researchmap Member ID1000366973 Research Interests 2 位相幾何 Topology Research Areas 1 Natural sciences / Geometry / Research History 4 Apr, 2001 - Mar, 2019 Professor, Graduate School of Science, Osaka University Apr, 1997 - Mar, 2001 Associate Professor, Gracuate School of Mathematical Sciences, University of Tokyo Apr, 1990 - Sep, 1997 Associate Professor, Faculty of Science, Tokyo Institute of Technology Oct, 1985 - Mar, 1990 Research Associate, Facalty of Science, Tokyo Metropolitan University Education 4 - 1985 The University of Tokyo - 1985 Graduate School, Division of Science, The University of Tokyo - 1983 Faculty of Science, The University of Tokyo - 1983 Faculty of Science, The University of Tokyo Awards 2 Sep, 2012 幾何学賞, 日本数学会 大鹿 健一 2010 JMSJ論文賞 Major Papers 63 THE INFINITESIMAL AND GLOBAL THURSTON GEOMETRY OF TEICHMÜLLER SPACE Huang, Y., Ohshika, K., Papadopoulos, A. Journal of Differential Geometry, 131(2), 2025 Peer-reviewed Thurston’s bounded image theorem Cyril Lecuire, Ken’Ichi Ohshika Geometry and Topology, 28(6) 2971-2999, 2024 Peer-reviewed Realising end invariants by limits of minimally parabolic, geometrically finite groups Ken'ichi Ohshika GEOMETRY & TOPOLOGY, 15(2) 827-890, 2011 Peer-reviewed More Misc. 22 Thurston’s Influence on Japanese Topologists up to the 1980s Ken’ichi Ohshika In the Tradition of Thurston, 59-65, 2020 A Glimpse into Thurston’s Work Ken’ichi Ohshika, Athanase Papadopoulos In the Tradition of Thurston, 1-58, 2020 SYMMETRIES ON REDUCED BERS BOUNDARIES (Geometric and analytic approaches to representations of a group and representation spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1777 84-87, Feb, 2012 GEOMETRIC LIMITS VIEWED THROUGH MODEL MANIFOLDS (Analysis and Topology of Discrete Groups and Hyperbolic Spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1660 1-14, Jul, 2009 DIVERGENCE IN DEFORMATION SPACES OF KLEINIAN GROUPS(Topology, Complex Analysis and Arithmetic of Hyperbolic Spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1571 1-4, Oct, 2007 大阪大学公開講座・現代数学の冒険 宇宙の形の幾何 (特集 数学ライブ2007) 大鹿 健一 数学セミナー, 46(7) 26-32, Jul, 2007 数学辞典 岩波書店, 2007 Encylopedia of Mathematics Iwanami, 2007 トポロジーから見たクライン群 (特集 サーストン・プログラムと双曲幾何) 大鹿 健一 数学セミナー, 44(3) 30-34, Mar, 2005 Strong convergence of Kleinian groups (Perspectives of Hyperbolic Spaces II) Ohshika Ken'ichi RIMS Kokyuroku, 1387 31-35, Jul, 2004 離散群とトポロジー (特集 トポロジーの新世紀 多彩な発想と更なる展開) 大鹿 健一 数理科学, 41(6) 27-33, Jun, 2003 DENSITY OF GEOMETRICALLY FINITE KLEINIAN GROUPS (Hyperbolic Spaces and Discrete Groups II) Ohshika Ken'ichi RIMS Kokyuroku, 1270 93-100, Jun, 2002 ポアンカレ予想の現状--サーストンの仕事を中心に (特集 ポアンカレ予想への道) 大鹿 健一 数学セミナー, 40(11) 36-40, Nov, 2001 20世紀の予想/ア-ルフォ-ス予想 大鹿 健一 数学セミナ-, 37(7) 49-53, Jul, 1998 3次元多様体と無限群の昨日・今日・明日 (フォーラム:現代数学の風景/21世紀の幾何学) 大鹿 健一 数学のたのしみ, (7) 63-69, Jun, 1998 An approach to Marden's conjecture for finitely generated Kleinian groups(Analysis of Discrete Groups) OHSHIKA Ken'ichi RIMS Kokyuroku, 967 100-101, Oct, 1996 Rigidite et conjugaison topologique des groupes kleiniens topologiquement sages(Complex Analysis on Hyperbolic 3-Manifolds) Ohshika Ken'ichi RIMS Kokyuroku, 882 70-72, Aug, 1994 Boundaries for spaces of quasi-Fuchsian groups Ohshika Ken'ichi RIMS Kokyuroku, 636 42-45, Dec, 1987 Incompressible Measured Laminations in 3-manifolds Ohshika Ken'ichi RIMS Kokyuroku, 624 28-32, May, 1987 Degeneration of geometric structures on Seifert fibered manifolds Ohshika Ken'ichi RIMS Kokyuroku, 575 213-222, Dec, 1985 TOWARDS A PROOF OF THURSTON'S GEOMETRIZATION THEOREM FOR ORBIFOLDS(Hyperbolic Geometry and 3-Manifolds) Soma Teruhiko, Ohshika Ken-ichi, Kojima Sadayoshi RIMS Kokyuroku, 568 1-72, Oct, 1985 Teichmuller Spaces of Seifert Fibered Manifolds with Infinite $\pi_1$ Ohshika Ken-ichi RIMS Kokyuroku, 542 119-127, Jan, 1985 1 Books and Other Publications 2 離散群 大鹿 健一 岩波書店, 2008 (ISBN: 9784000061483) Discrete Groups 大鹿 健一 American Mathematical Society, 2002 (ISBN: 082182080X) Professional Memberships 2 American Mathematical Society 日本数学会 Works 6 Klein群の収束に関するThurston予想 2002 Thurston's conjecture on convergence of Kleinian groups 2002 Klein群のco-Hopf性質 1997 - 1998 Co-Hopfian property of Kleinian groups 1997 - 1998 3次元多様体群のBounded cohomology 1996 - 1997 More Research Projects 51 3次元トポロジーへの応用を目指した離散群の表現空間と大域幾何の研究 科学研究費助成事業, 日本学術振興会, Apr, 2022 - Mar, 2027 大鹿 健一, 宮地 秀樹, 馬場 伸平, 金 英子, 森藤 孝之, 河澄 響矢 3次元トポロジーへの応用を目指した離散群の表現空間と大域幾何の研究 科学研究費助成事業, 日本学術振興会, Apr, 2022 - Mar, 2027 大鹿 健一, 宮地 秀樹, 馬場 伸平, 金 英子, 森藤 孝之 Reconstructing the Thurston theory based on Higgs bundles and its new development Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Pioneering), Japan Society for the Promotion of Science, Jul, 2020 - Mar, 2026 タイヒミュラー空間論の複素解析的側面の深化と多角的視点からの新展開 科学研究費助成事業, 日本学術振興会, Apr, 2020 - Mar, 2025 宮地 秀樹, 志賀 啓成, 大鹿 健一, 山田 澄生 タイヒミュラー空間論の複素解析的側面の深化と多角的視点からの新展開 科学研究費助成事業, 日本学術振興会, Apr, 2020 - Mar, 2025 宮地 秀樹, 志賀 啓成, 大鹿 健一, 山田 澄生 More
Ken'ichi Ohshika (大鹿 健一) Please select the form format to download from below 「Education and research environment」format 「No. 4, the Ministry of Education document style ①Outline for Vitae」format 「No. 4, the Ministry of Education document style ②Education and research environment」format Profile Information AffiliationFaculty of Science, Department of Mathematics, Gakushuin UniversityThe University of OsakaDegree(BLANK)(The University of Tokyo)J-GLOBAL ID200901012308978709researchmap Member ID1000366973 Research Interests 2 位相幾何 Topology Research Areas 1 Natural sciences / Geometry / Research History 4 Apr, 2001 - Mar, 2019 Professor, Graduate School of Science, Osaka University Apr, 1997 - Mar, 2001 Associate Professor, Gracuate School of Mathematical Sciences, University of Tokyo Apr, 1990 - Sep, 1997 Associate Professor, Faculty of Science, Tokyo Institute of Technology Oct, 1985 - Mar, 1990 Research Associate, Facalty of Science, Tokyo Metropolitan University Education 4 - 1985 The University of Tokyo - 1985 Graduate School, Division of Science, The University of Tokyo - 1983 Faculty of Science, The University of Tokyo - 1983 Faculty of Science, The University of Tokyo Awards 2 Sep, 2012 幾何学賞, 日本数学会 大鹿 健一 2010 JMSJ論文賞 Major Papers 63 THE INFINITESIMAL AND GLOBAL THURSTON GEOMETRY OF TEICHMÜLLER SPACE Huang, Y., Ohshika, K., Papadopoulos, A. Journal of Differential Geometry, 131(2), 2025 Peer-reviewed Thurston’s bounded image theorem Cyril Lecuire, Ken’Ichi Ohshika Geometry and Topology, 28(6) 2971-2999, 2024 Peer-reviewed Realising end invariants by limits of minimally parabolic, geometrically finite groups Ken'ichi Ohshika GEOMETRY & TOPOLOGY, 15(2) 827-890, 2011 Peer-reviewed More Misc. 22 Thurston’s Influence on Japanese Topologists up to the 1980s Ken’ichi Ohshika In the Tradition of Thurston, 59-65, 2020 A Glimpse into Thurston’s Work Ken’ichi Ohshika, Athanase Papadopoulos In the Tradition of Thurston, 1-58, 2020 SYMMETRIES ON REDUCED BERS BOUNDARIES (Geometric and analytic approaches to representations of a group and representation spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1777 84-87, Feb, 2012 GEOMETRIC LIMITS VIEWED THROUGH MODEL MANIFOLDS (Analysis and Topology of Discrete Groups and Hyperbolic Spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1660 1-14, Jul, 2009 DIVERGENCE IN DEFORMATION SPACES OF KLEINIAN GROUPS(Topology, Complex Analysis and Arithmetic of Hyperbolic Spaces) OHSHIKA KEN'ICHI RIMS Kokyuroku, 1571 1-4, Oct, 2007 大阪大学公開講座・現代数学の冒険 宇宙の形の幾何 (特集 数学ライブ2007) 大鹿 健一 数学セミナー, 46(7) 26-32, Jul, 2007 数学辞典 岩波書店, 2007 Encylopedia of Mathematics Iwanami, 2007 トポロジーから見たクライン群 (特集 サーストン・プログラムと双曲幾何) 大鹿 健一 数学セミナー, 44(3) 30-34, Mar, 2005 Strong convergence of Kleinian groups (Perspectives of Hyperbolic Spaces II) Ohshika Ken'ichi RIMS Kokyuroku, 1387 31-35, Jul, 2004 離散群とトポロジー (特集 トポロジーの新世紀 多彩な発想と更なる展開) 大鹿 健一 数理科学, 41(6) 27-33, Jun, 2003 DENSITY OF GEOMETRICALLY FINITE KLEINIAN GROUPS (Hyperbolic Spaces and Discrete Groups II) Ohshika Ken'ichi RIMS Kokyuroku, 1270 93-100, Jun, 2002 ポアンカレ予想の現状--サーストンの仕事を中心に (特集 ポアンカレ予想への道) 大鹿 健一 数学セミナー, 40(11) 36-40, Nov, 2001 20世紀の予想/ア-ルフォ-ス予想 大鹿 健一 数学セミナ-, 37(7) 49-53, Jul, 1998 3次元多様体と無限群の昨日・今日・明日 (フォーラム:現代数学の風景/21世紀の幾何学) 大鹿 健一 数学のたのしみ, (7) 63-69, Jun, 1998 An approach to Marden's conjecture for finitely generated Kleinian groups(Analysis of Discrete Groups) OHSHIKA Ken'ichi RIMS Kokyuroku, 967 100-101, Oct, 1996 Rigidite et conjugaison topologique des groupes kleiniens topologiquement sages(Complex Analysis on Hyperbolic 3-Manifolds) Ohshika Ken'ichi RIMS Kokyuroku, 882 70-72, Aug, 1994 Boundaries for spaces of quasi-Fuchsian groups Ohshika Ken'ichi RIMS Kokyuroku, 636 42-45, Dec, 1987 Incompressible Measured Laminations in 3-manifolds Ohshika Ken'ichi RIMS Kokyuroku, 624 28-32, May, 1987 Degeneration of geometric structures on Seifert fibered manifolds Ohshika Ken'ichi RIMS Kokyuroku, 575 213-222, Dec, 1985 TOWARDS A PROOF OF THURSTON'S GEOMETRIZATION THEOREM FOR ORBIFOLDS(Hyperbolic Geometry and 3-Manifolds) Soma Teruhiko, Ohshika Ken-ichi, Kojima Sadayoshi RIMS Kokyuroku, 568 1-72, Oct, 1985 Teichmuller Spaces of Seifert Fibered Manifolds with Infinite $\pi_1$ Ohshika Ken-ichi RIMS Kokyuroku, 542 119-127, Jan, 1985 1 Books and Other Publications 2 離散群 大鹿 健一 岩波書店, 2008 (ISBN: 9784000061483) Discrete Groups 大鹿 健一 American Mathematical Society, 2002 (ISBN: 082182080X) Professional Memberships 2 American Mathematical Society 日本数学会 Works 6 Klein群の収束に関するThurston予想 2002 Thurston's conjecture on convergence of Kleinian groups 2002 Klein群のco-Hopf性質 1997 - 1998 Co-Hopfian property of Kleinian groups 1997 - 1998 3次元多様体群のBounded cohomology 1996 - 1997 More Research Projects 51 3次元トポロジーへの応用を目指した離散群の表現空間と大域幾何の研究 科学研究費助成事業, 日本学術振興会, Apr, 2022 - Mar, 2027 大鹿 健一, 宮地 秀樹, 馬場 伸平, 金 英子, 森藤 孝之, 河澄 響矢 3次元トポロジーへの応用を目指した離散群の表現空間と大域幾何の研究 科学研究費助成事業, 日本学術振興会, Apr, 2022 - Mar, 2027 大鹿 健一, 宮地 秀樹, 馬場 伸平, 金 英子, 森藤 孝之 Reconstructing the Thurston theory based on Higgs bundles and its new development Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Pioneering), Japan Society for the Promotion of Science, Jul, 2020 - Mar, 2026 タイヒミュラー空間論の複素解析的側面の深化と多角的視点からの新展開 科学研究費助成事業, 日本学術振興会, Apr, 2020 - Mar, 2025 宮地 秀樹, 志賀 啓成, 大鹿 健一, 山田 澄生 タイヒミュラー空間論の複素解析的側面の深化と多角的視点からの新展開 科学研究費助成事業, 日本学術振興会, Apr, 2020 - Mar, 2025 宮地 秀樹, 志賀 啓成, 大鹿 健一, 山田 澄生 More