Toshiyuki KOBAYASHI

• 2 November 2009: Mr. Yoshiki Oshima (M2) and Mr. Takayuki Okuda (M2) have been appointed as JSPS Research Fellows (DC1) of the academic year 2010.
• 20 June 2009: The Seventh Takagi Lecutres are to be held on 21-23 November at the University of Tokyo.
• 3 March 2009: Dr. Atsumu Sasaki has been appointed as an assistant professor at Waseda University, commencing 1 April.
• 20 February 2009: Dr. Noriyuki Abe has been appointed as an assistant professor at the Graduate School of Mathematical Sciences/Institute for the Physics and Mathematics of the Universe, The University of Tokyo, commencing 1 April.
• 17 September 2008: Dr. Yukio Koriyama has assumed his duties as assistant professor at l'École Polytechnique.
• 8 April 2008: Mr. Katsuki Teduka, Mr. Atsumu Sasaki and Mr. Masayasu Moriwaki defended their Ph.D. theses (March 2008).
• 1 October 2007: Dr. Taro Yoshino has been appointed as an assistant professor (tenure) at Tokyo Institute of Techonology.

• Log

• 5-11 June 2009: Discontinuous Groups on pseudo-Riemannian Spaces, Mathematische Arbeitstagung 2009, MPI Bonn, Germany. [ full info ]
• 14-17 September 2009: Breaking Symmetries and Locally Symmetric Spaces, Geometry and Analysis of Automorphic Forms: Conference in honor of Professor Takayuki Oda on the occasion of his 60th birthday, the University of Tokyo, Japan.
• 24-27 October 2009: Branching Problems for Zuckerman's Derived Functor Modules, Representation Theory and Mathematical Physics Conference in honor of Gregg Zuckerman's 60th birthday, Yale University, USA
• 23-26 November 2009: Restriction of Unitary Representations to Reductive Subgroups, Encuentro de Teoría de Lie (in honor of Prof. Jorge Vargas' 60th Birthday), Facultad de Matemática, Astronomía y Física Universidad Nacional de Córdoba, Córdoba, Argentina.
• 27 November-1 December 2009: Generalized Bernstein-Reznikov Integrals, The Seventh Workshop in Lie Theory and its Applications, La Falda, Argentina.
• 16-23 January 2010: TBA, The 30th Winter School on Geometry and Physics, Srni, Czech.
• 28 June-2 July 2010: TBA, Geometry and Quantum Theory Conference, Nijmegen, the Netherlands.

• 5-10 August 2009: Workshop on Integral Geometry and Group Representations, Tambara, Japan.
• 14-17 September 2009: Conference in honor of Takayuki Oda's 60th birthday "Geometry and Analysis of Automorphic Forms of Several Variables ", Graduate School of Mathematical Sciences, University of Tokyo.
• 5-6 November 2009: IPMU workshop: Quantizations, integrable systems and representation theory, IPMU, The University of Tokyo, Japan.
• 21-23 November 2009: The Seventh Takagi Lecutres, the University of Tokyo, Japan.
• 14-20 November 2010: Representation Theory and Harmonic Analysis, Oberwolfach, Germany.

• International conferences (co)organized by T. Kobayashi

• Course lecture list

• Professors Krötz, Mehdi, Trapa, Zierau (GCOE Spring School) March 2009
• Professor Takaaki Nomura (Kyushu University) 7-11 December 2009, 14:40-16:40, room 123
• Professor Toshikazu Sunada (Meiji University) 14-18 December 2009, 14:40-16:40, room 123

• Lie Groups and Representation Theory Seminar

• Postdocs, students & visitors

• Global COE Program, The University of Tokyo (1 August 2008- ) [ pamphlet ]

• Managing Editor, Japanese Journal of Mathematics (2005- )
• Editor, Geometriae Dedicata (2000- )
• Editor, International Mathematics Research Notices (2002- )
• Editor, International Journal of Mathematics (2004- )
• Editor, Kyoto Journal of Mathematics (2010- )
• Editor, Journal of Mathematical Sciences, The University of Tokyo (2007- )
• Editor, Advances in Pure and Applied Mathematics (2008- )
• Editor in Chief, Journal of Mathematical Society of Japan (2002-2004; 2004-2006), Editor (1998-2006)
• Editor, Publications RIMS (2003-2007)
• Editor, International Mathematics Research Papers (2005-2008)

• Member, Science Council of Japan (2006- )
• Board of Trustees, Mathematical Society of Japan (2003-2005; 2005-2007)

• Organizer, Takagi Lectures (2006- )

Awards and academic honours

• Humboldt Research Award (2008)
• Sackler Distinguished Lecturer (2007)
• JSPS Prize (2007)
• Osaka Science Prize (2006)
• ICM 2002 (invited address)
• Spring Prize (1999)
• Takebe Prize (1997)

• Address:
  Graduate School of Mathematical Sciences, The University of Tokyo
  3-8-1 Komaba, Meguro, Tokyo, 153-8914 Japan
  [ Access ]
• Email:
  toshi (at) ms.u-tokyo.ac.jp
• Fax:
  +81-3-5465-7011 (secretary)
• Phone:
  +81-3-5465-7001 (secretary)

• The Schrödinger model for the minimal representation of the indefinite orthogonal group O(p,q), to appear in Mem. Amer. Math. Soc., 171 pp. arXiv:0712.1769 [math.RT]. [ full info ]
• Visible actions on symmetric spaces, Transformation Groups, 12 (2007), 671-694. [ full info ]
• (with G. Mano), The inversion formula and holomorphic extension of the minimal representation of the conformal group, in Harmonic Analysis, Group Representations, Automorphic Forms and Invariant Theory: In Honour of Roger E. Howe, Singapore University Press and World Scientific Publishing, 2007, pp. 159-223. [ full info ]
• (with T. Yoshino), Compact Clifford-Klein forms of symmetric spaces: revisited, Pure and Appl. Math. Quarterly 1 (2005), 603-684, Special Issue: In Memory of Professor Armand Borel. [ full info ]
• Multiplicity-free representations and visible actions on complex manifolds, Publ. RIMS 41 (2005), 497-549, special issue commemorating the fortieth anniversary of the founding of RIMS. [ full info ]
• (with B. Ørsted), Analysis on minimal representations of O(p,q), Part I — Realization and conformal geometry, Adv. Math. 180 (2003), 486-512 [ full info ]; Part II — Branching laws, Adv. Math. 180 (2003), 513-550 [ full info ]; Part III — Ultra-hyperbolic equations on R^p-1,q-1, Adv. Math. 180 (2003), 551-595. [ full info ]
• Branching problems of unitary representations, Proc. of ICM, Beijing 2002, 2 (2002), 615-627. [ full info ]
• Discrete decomposability of the restriction of A_q(λ) with respect to reductive subgroups III: restriction of Harish-Chandra modules and associated varieties, Inventiones Mathematicae 131 (1998), 229-256. [ full info ]
• Discrete decomposability of the restriction of A_q(λ) with respect to reductive subgroups II: micro-local analysis and asymptotic K-support, Annals of Math. 147 (1998), 709-729. [ full info ]
• Invariant measures on homogeneous manifolds of reductive type, J. reine und angew. Math. 490 (1997), 37-53. [ full info ]
• Discrete decomposability of the restriction of A_q(λ) with respect to reductive subgroups and its applications, Invent. Math. 117 (1994), 181-205. [ full info ]
• A necessary condition for the existence of compact Clifford-Klein forms of homogeneous spaces of reductive type, Duke Math. J. 67 (1992), 653-664. [ full info ]
• Proper action on a homogeneous space of reductive type, Math. Ann. 285 (1989), 249-263. [ full info ]

• T. Kobayashi, Multiplicity-free theorems of the restrictions of unitary highest weight modules with respect to reductive symmetric pairs, in Representation Theory and Automorphic Forms (T. Kobayashi, W. Schmid, and J.-H. Yang, eds.), Progress in Mathematics 255, Birkhäuser, 2007. [ full info ]
• A. Borel, L. Ji, and T. Kobayashi, Lie Theory: Unitary Representations and Compactifications of Symmetric Spaces, (J.-P. Anker and B. Ørsted, eds.), Progress in Mathematics 229, Birkhäuser, 2005, 207 pp. [ full info ]
• T. Kobayashi and T. Oshima, Lie Groups and Representations, Iwanami, 2005, 610 pp (in Japanese). [ full info ]
• T. Kobayashi, Discontinuous groups for non-Riemannian homogeneous spaces, in Mathematics Unlimited — 2001 and Beyond (B. Engquist and W. Schmid, eds.), Springer-Verlag, 2000. [ full info ]
• T. Kobayashi, Singular Unitary Representations and Discrete Series for Indefinite Stiefel Manifolds U(p, q; F)/U(p -m, q; F), Memoirs of the Amer. Math. Soc. 462, 1992, 106 pp. [ full info ]

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• Categorized list (click here)   (noframe page)
• Preprint list (click here)

• Mathematische Arbeitstagung, Germany (2009)
• Conference in honor of B. Ørsted's 60th birthday (opening lecture), Germany (2009)
• Colloquium, Yale University, USA (2009)
• Conference in honor of T. Oshima's 60th birthday, Japan (2009)
• Conference, Representations of Lie groups and applications, France (2008)
• The Monna Lectures, Netherlands (2008)
• Conference in honor of Jean-Louis Clerc, France (2008)
• Number Theory Seminar, Harvard University, USA (2008)
• Colloquium, Harvard University, USA (2008)
• Conference in honor of S. Helgason's 80th birthday, Iceland (2007)
• Conference in honor of T. Sunada's 60th birthday, Japan (2007)
• Conference at Max-Planck-Institut für Mathematik, Bonn (closing lecture), Germany (2007)
• Seminar Sophus Lie in honor of E. B. Vinberg's 70th birthday (opening lecture), Germany (2007)
• Summer Solstice Days, Institut de Mathématiques de Jussieu, France (2007)
• Sackler Distinguished Lectures in Pure Mathematics, Israel (2007)
• Conference in honor of H. Abels, Germany (2006)
• Conference in honor of R. Howe's 60th birthday (opening lecture), Singapore (2006)
• Conference in honor of R. Parthasarathy's 60th birthday, India (2006)
• Asian Mathematical Congress, Singapore (2005)
• Seminar Sophus Lie in honor of Jacques Faraut, France (2005)
• Pan-African Congress of Mathematicians (plenary address), Tunisia (2004)
• Conference in honor of G. van Dijk's 65th birthday, Netherlands (2004)
• Conference, Lie groups and representation theory (closing lecture), Denmark (2004)
• ICM 2002, Beijing, China (2002)
• Winter School on Geometry and Physics, Czech Republic (2002)
• Conference on Integral Geometry at MSRI, Berkeley, USA (2001)
• Harvard University (series lectures), USA (2001)
• European School on Group Theory (series lectures), Denmark (2000)
• Summer Solstice Days, Université de Paris 6 & 7, France (1999)
• Annual meeting of the Mathematical Society of Japan (Spring Award), Japan (1999)
• Göttingen Colloquium, Germany (1999)
• Seminar Sophus Lie, Germany (1999)
• Round Table in Global Pseudo-Riemannian Geometry, Nancy, France (1998)
• Conference on Analysis on Lie groups and homogeneous spaces, Denmark (1997)
• The Gelfand Seminar, USA (1997)
• Summer Solstice Days, Université de Paris 6 & 7, France (1996)
• Annual Meeting of Swedish Mathematical Society, Lund, Sweden (1995)
• European School on Group Theory (series lectures), Denmark (1994)
• Workshop in honor of S. Helgason's 65th birthday, Denmark (1992)
• Conference ''75 years of Radon transform'', Vienna, Austria (1992)
• Colloquium at Columbia University, USA (1992)
• Conference on Harmonic analysis on Lie groups, Denmark (1991)

• Chronological order (click here)   (noframe page)
• Reverse chronological order (click here)   (noframe page)

• Colloquium lecture list (click here)
• Course lecture list (click here)