Home List of Talks

List of talks

International conferences

  1. July 4, 2008, Generalization of Kazhdan's Property (T) and Kazhdan constant of SL(n,R), Rigidity School Kyoto, Heartpia Kyoto, Japan
  2. June 3, 2009, A fixed point property and the second bounded cohomology of universal lattices on Banach spaces, Lp-cohomology and Affine Actions on Lp spaces, MAPMO, France
  3. June 8, 2009, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, Noncommutative Lp Spaces, Operator Spaces and Applications, CIRM, France
  4. June 30, 2009, A fixed point property and the second bounded cohomology of universal lattices, Affine Isometric Actions of Discrete Groups, CSF (ETH Zurich), Switzerland
  5. December 17, 2009, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, New Directions in Geometric Group Theory, University of Queensland, Australia
  6. December 23, 2009, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, Geometry and Analysis, Paris, France
  7. June 15, 2010, Fixed-point and Kazhdan-type theorems for universal lattices on Banach spaces, Workshop AGORA (Actions, Groups, OpeRator Algebras), Ecole Normale Superieure, Lyon, France
  8. July　13, 2010, Fixed-point and Kazhdan-type theorems for universal lattice on Banach spaces, Non-commutative Harmonic Analysis, Bedlewo, Poland
  9. August 9, 2010, Rigidity theorems for non-arithmetic matrix groups, Workshop on Geometric Group Theory: Satellite Conference to ICM 2010 (Contributed Talk), Goa, India
  10. March 6, 2011, Property (TT)/T and homomorphism rigidity into mapping class groups, Rigidity School Nara, Nara, Japan
  11. March 17, 2011, Property (TT)/T and homomorphism rigidity into mapping class groups, Geometry and Analysis, University of Kyoto, Japan
  12. June 21, 2011, Property (TT)/T and homomorphism superrigidity into mapping class groups, Geometric Group Theory, University of Bristol, United Kingdoms
  13. August 18, 2011, Property (TT)/T and homomorphism superrigidity into mapping class groups, Geometric Group Theory and Logic: The Elementary Theory of Groups, the University of Illinois at Chicago, United States of America
  14. October 18, 2011, Property (TT)/T and homomorphism superrigidity into mapping class groups, Todai Forum 2011 "Geometry and Dynamics" , ENS Lyon, France

Domestic conferences and (international/domestic) seminars

  1. October 25, 2007, An invitation to expander graphs, Operator Algebra Seminar, University of Tokyo, Japan
  2. January 30, 2008, A generalization of property (T) of SL(n,R), Operator Algebra Seminar, University of Tokyo, Japan
  3. June 12, 2008, On Lubotzky's property (tau) and expander graphs, Operator Algebra Seminar, University of Tokyo, Japan
  4. September 19, 2008, On generalization of Kazhdan's property (T), Junior Workshops on Functional Analysis, Kusatsu Seminar House, Japan
  5. September 27, 2008, Generalization of Kazhdan's Property (T) and Kazhdan constant of SL(n,R) (15-minute talk), Autumn Meeting of the Mathematical Society of Japan, Tokyo institute of Technology, Japan
  6. May 7, 2009, A fixed point property and the Kazhdan property of SL(n,Z[X1 , ... ,Xk]) for Banach spaces, Operator Algebra Seminar, University of Tokyo, Japan
  7. July 9, 2009, Boundedness properties with respect to quasi-affine actions of universal lattices on Banach spaces, Rigidity Seminar, Nagoya University, Japan
  8. September 3, 2009, Boundedness properties with respect to quasi-affine actions of SL(n,Z[X1 , ... ,Xk]) on Banach spaces, Studies on Operator Algebra and Related Fields, RIMS, Japan
  9. September 6, 2009, On generalization of Kazhdan's property (T) II, Junior Meeting on Functional Analysis, Ritsumeikan University, Japan
  10. December 3, 2009, Vanishing of quasi-homomorphisms and the stable commutator lengths on special linear groups over euclidean rings, Operator Algebra Seminar, University of Tokyo, Japan
  11. December 9, 2009, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, Max Dehn Seminar, Tohoku University, Japan
  12. March 4, 2010, Fixed point properties for universal lattices on Banach spaces, Geometry and Ergodic Theory Seminar, EPFL, Switzerland
  13. March 29, 2010, Fixed point properties and bounded cohomology for universal lattices on Banach spaces, Seminaire "Groupes et algebres d'operateurs", Universite de Neuchatel, Switzerland
  14. April 22, 2010, On quasi-homomorphisms and commutators in the special linear group over a Euclidean ring, Geometry and Ergodic Theory Seminar, EPFL, Switzerland
  15. April 28, 2010, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, Geometry Seminar, ETH Zurich, Switzerland
  16. June 12, 2010, SCL, Week-end mathematique, St-Denis de l’Hotel, Orleans, France
  17. September 9, 2010, Fixed point properties and second bounded cohomology of universal lattices on Banach spaces, Operator Algebra Seminar, University of Rome "Tor Vergata", Italy
  18. October 6, 2010, On quasi-homomorphisms and commutators in SLn(A) (A: ring), Seminaire d'Analyse et Geometrie, Institut de Mathematiques de Jussieu (Chevaleret), France
  19. October 7, 2010, Fixed-point property for universal lattices on Banach spaces, Seminaire d'Algebres d'Operateurs, Institut de Mathematiques de Jussieu (Chevaleret), France
  20. October 11, 2010, Rigidity for non-arithmetic matrix groups, Seminaire de Theorie Ergodique, Universite de Rennes I, France
  21. October 19, 2010, On quasi-homomorphisms and commutators in SLn(A) (A: ring), Seminaire "Groupes et Geometrie", Universite de Geneve, Switzerland
  22. October 27, 2010, On quasi-homomorphisms and commutators in SLn(A) (A: ring), Oberseminar Geometrie, Universite de Fribourg, Switzerland
  23. October 28, 2010, Quasi-cocycles and homomorphism rigidity to mapping class groups, Geometry and Ergodic Theory Seminar, EPFL, Switzerland
  24. Nonember 5, 2010, Quasi-cocycles and homomorphism rigidity to mapping class groups, Seminaire "Groupes et algebres d'operateurs", Universite de Neuchatel, Switzerland
  25. November 24, 2010, On quasi-homomorphisms and commutators in SLn(A) (A: ring), Geometry seminar, ETH Zurich, Switzerland
  26. January 20, 2011, Property (TT)/T and homomorphism rigidity into Out(F_n), Operator algebra seminar, University of Tokyo, Japan
  27. January 31, 2011, Property (TT)/T for groups, and homomorphisms into mapping class groups, Researches of symmetries in operator algebras, RIMS, Japan
  28. April 18, 2011, Property (TT)/T and homomorphism superrigidity into mapping class groups, Keio geometry seminar, Keio University, Japan
  29. August 5, 2011, Rigidity Theorems for Non-arithmetic Matrix Groups, Big^2 seminar, Tokyo Institute of Technology, Japan
  30. August 28, 2011, Rigidity theorems for non-arithmetic matrix groups, 58th Geometry Symposium, Yamaguchi University, Japan
  31. September 5, 2011, Property (TT)/T and homomorphism superrigidity to mapping class groups, Topology on Riemann Surfaces 2011, the University of Tokyo, Japan
  32. September 12, 2011, On bounded cohomology, Junior Meeting on Functional Analysis, Kansai Seminar House, Japan
  33. October 28, 2011, Property (TT)/T and homomorphism superrigidity to mapping class groups, Geometry seminar, Kyushu University
  34. December 13, 2011, On Kazhdan's property (T) and its strengthenings I, Analysis and Geometry of Discrete Groups and Hyperbolic Spaces, RIMS
    (this is the first part of 3 lectures of an introductory mini-course on property (T) which I gave at that conference)
  35. December 14, 2011, On Kazhdan's property (T) and its strengthenings II, Analysis and Geometry of Discrete Groups and Hyperbolic Spaces, RIMS
  36. December 15, 2011, On Kazhdan's property (T) and its strengthenings III, Analysis and Geometry of Discrete Groups and Hyperbolic Spaces, RIMS
  37. February 21, 2012, Property (TT)/T and homomorphism superrigidity to mapping class groups, Tuesday seminar on Topology, University of Tokyo
  38. March 14, 2012, Property (TT)/T and homomorphism superrigidity to mapping class groups, Group actions and K-theory, Univeristy of Kyoto
  39. March 26, 2012, On quasi-homomorphisms and commutators in SLn(A) (A:ring) （15-minute talk）, MSJ Spring Meeting 2012, Tokyo University of Science
  40. March 28, 2012, Kazhdan's property (T) and (F_Lp) for universal latices （10-minute talk）, MSJ Spring Meeting 2012, Tokyo University of Science
  41. March 28, 2012, Second bouneded cohomology of universal lattices with twisted unitary coefficients （10-minute talk）, MSJ Spring Meeting 2012, Tokyo University of Science
  42. March 28, 2012, Property (TT)/T and homomorphism superrigidity to mapping class groups （10-minute talk), MSJ Spring Meeting 2012,Tokyo University of Science