Talks

Conferences

  1. Direct integral of von Neumann algebras (15min talk),
    Junior Meeting on Functional Analysis, Aomori (Japan), 15 Sep. 2010.
  2. Fundamental groups of von Neumann algebras，
    Junior Meeting on Functional Analysis, Kyoto (Japan), 11 Sep. 2011.
  3. Introduction to compact quantum groups,
    Junior Meeting on Functional Analysis, Miyagi (Japan), 29 Aug. 2012.
  4. Weak exactness for C*-algebras and application to condition (AO) (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Kyushu University (Japan), 20 Sep. 2012.
  5. Weak exactness for C*-algebras and application to condition (AO),
    RIMS workshop, Kyoto University (Japan), 24 Sep. 2012.
  6. II_1 factors of universal discrete quantum groups have no Cartan subalgebras (10min talk),
    The Annual Christmas Conference of the Non Commutative Geometry GDR, University of Lorraine (France), 6 Dec. 2012.
  7. Strong solidity of II_1 factors of free orthogonal and unitary quantum groups,
    Approximation properties for quantum groups, University of Cergy-Pontoise (France), 25 March 2013.
  8. Strong solidity of II_1 factors of free quantum groups (30min talk),
    Von Neumann algebras and Measurable group theory, KU Leuven (Belgium), 1 July 2013.
  9. Strong solidity of II_1 factors of free quantum groups,
    RIMS workshop, Kyoto university (Japan), 13 Sep. 2013.
  10. Introduction to rigidity theory of von Neumann algebras,
    Junior Meeting on Functional Analysis, Kusatsu (Japan), 19 Sep. 2013.
  11. Strong solidity of II_1 factors of free quantum groups (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Ehime university (Japan), 25 Sep. 2013.
  12. Some prime factorization results for free quantum group factors (10min talk),
    GPOTS 2014, Kansas state university (USA), 29 May 2014.
  13. Some prime factorization results for free quantum group factors,
    ICM Satellite Conference on Operator Algebras and Applications, Cheongpung (Korea), 8 Aug. 2014.
  14. On fundamental groups of tensor product II_1 factors,
    Junior Meeting on Functional Analysis, Gifu (Japan), 21 Aug. 2014.
  15. Some prime factorization results for free quantum group factors,
    RIMS workshop, Kyoto university (Japan), 8 Sep. 2014.
  16. Free independence in ultraproduct von Neumann algebras and applications,
    Von Neumann Algebras and Ergodic Theory, UCLA (USA), 23 Sep. 2014.
  17. Unique prime factorization and bicentralizer problem for a class of type III factors,
    RIMS workshop, Kyoto university (Japan), 21 Aug. 2015.
  18. Strongly ergodic actions and full factors,
    Junior Meeting on Functional Analysis, Karuizawa (Japan), 4 Sep. 2015.
  19. Unique prime factorization and bicentralizer problem for a class of type III factors (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Kyoto sangyo university (Japan), 15 Sep. 2015.
  20. On fundamental groups of tensor product II_1 factors,
    HIM workshop "Von Neumann Algebras", Hausdorff Research Institute (Germany), 4 July 2016.
  21. On amenability of von Neumann algebras,
    Junior Meeting on Functional Analysis, Kusatsu (Japan), 27 Aug. 2016.
  22. On fundamental groups of tensor product II_1 factors (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Kansai university (Japan), 17 Sep. 2016.
  23. On fundamental groups of tensor product II_1 factors,
    Structure of Operator Algebras: Subfactors and Fusion Categories, Newton Institute (England), 23 Jan. 2017.
  24. Prime factorization for infinite tensor product factors,
    Von Neumann algebras and measured group theory, IHP (France), 6 July 2017.
  25. Deformation/rigidity theory and type III von Neumann algebras,
    Autumn Meeting of the Mathematical Society of Japan, Yamagata university (Japan), 13 Sep. 2017.
  26. Unique prime factorization for infinite tensor product factors (15min talk),
    Annual Meeting of the Mathematical Society of Japan, University of Tokyo (Japan), 20 Mar. 2018.
  27. Tensor product decompositions and rigidity of full factors,
    RIMS workshop, Kyoto university (Japan), 6 Sep. 2019.
  28. Unitary conjugacy for type III subfactors and W*-superrigidity (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Kanazawa university (Japan), 19 Sep. 2019.
  29. Popa's intertwining theory for type III factors，
    Classification Problems in von Neumann Algebras, BIRS (Canada), 1 Oct. 2019.
  30. Ergodic theory of affine isometric actions on Hilbert spaces (3 lectures with Y. Arano),
    RIMS workshop, Kyoto university (Japan), 20-21 Jan. 2020.
  31. Ergodic theory of affine isometric actions on Hilbert spaces,
    Oparator theory and operator algebras, online, 25 Nov. 2020.
  32. Boundary and rigidity of nonsingular Bernoulli actions (15min talk),
    Annual Meeting of the Mathematical Society of Japan, online, Keio university (Japan), 17 Mar. 2021.
  33. On rigidity in mathematics,
    Final presentations in farewell ceremony of 7th-batch Hakubi researchers, online, 17 Sep. 2021.
  34. Pointwise inner automorphisms of almost periodic factors (15min talk),
    Autumn Meeting of the Mathematical Society of Japan, Hokkaido university (Japan), 15 Sep. 2022.
  35. Pointwise inner automorphisms of almost periodic factors,
    RIMS workshop, Kyoto university (Japan), 23 Jan. 2023.
  36. Haagerup and Størmer's conjecture for pointwise inner automorphisms,
    Operator Algebras and Mathematical Physics (Yasu Festa 60), University of Tokyo, 24 Jul. 2023.
  37. Haagerup and Størmer's conjecture for pointwise inner automorphisms,
    RIMS workshop, Kyoto university (Japan), 24 Jan. 2024.

Seminars

  1. Introduction to rigidity theory of von Neumann algebras,
    Operator algebra seminar, University of Tokyo (Japan), 16 June 2011.
  2. Weak exactness for C*-algebras and application to condition (AO),
    Operator algebra seminar, University of Tokyo (Japan), 2 Feb. 2012.
  3. Weak exactness for C*-algebras and application to condition (AO),
    Operator algebra seminar, Kyoto University (Japan), 4 July 2012.
  4. Weak exactness for C*-algebras and application to condition (AO),
    Operator algebra seminar, Kyushu University (Japan), 30 June 2012.
  5. Examples of factors which have no Cartan subalgebras,
    Operator algebra seminar, Institut de Mathématiques de Jussieu (France), 29 Nov. 2012.
  6. Strong solidity of von Neumann algebras of free orthogonal and unitary quantum groups,
    Compact Quantum Group Seminar, Institut de Mathématiques de Jussieu (France), 14 Dec. 2012.
  7. Examples of factors which have no Cartan subalgebras,
    Operator algebra seminar, University of Copenhagen (Denmark), 19 Dec. 2012.
  8. Examples of factors which have no Cartan subalgebras,
    Operator algebra seminar, KU Leuven (Belgium), 8 Feb. 2013.
  9. Examples of factors which have no Cartan subalgebras,
    Operator algebra seminar, ENS de Lyon (France), 15 Feb. 2013.
  10. Non weakly amenable group,
    Working Group: Around the geometric group theory, Institut de Mathématiques de Jussieu (France), 29 March 2013.
  11. Cartan subalgebras of free quantum group factors: non Kac type case,
    Non Commutative Harmonic Analysis Seminar, University of Caen (France), 3 April 2013.
  12. Strong solidity of II_1 factors of free quantum groups,
    Operator algebra seminar, Cardiff University (Wales), 2 May 2013.
  13. Introduction to rigidity theory of von Neumann algebras, Strong solidity of II_1 factors of free quantum groups,
    Operator algebra seminar, University of Franche-Comte (France), 7 May 2013.
  14. Strong solidity of II_1 factors of free quantum groups,
    Operator algebra seminar, University of Rome (Italy), 15 May 2013.
  15. Strong solidity of II_1 factors of free quantum groups,
    Operator algebra seminar, University of Oslo (Norway)，14 Aug. 2013.
  16. Some prime factorization results for free quantum group factors,
    Operator algebra seminar, KU Leuven (Belgium)，22 Aug. 2013.
  17. Some prime factorization results for free quantum group factors,
    Operator algebra seminar, University of Tokyo (Japan), 16 Oct. 2013.
  18. Some prime factorization results for free quantum group factors,
    Operator algebra seminar, Kyoto University (Japan), 12 Nov. 2013.
  19. Some prime factorization results for free quantum group factors,
    Operator algebra seminar, Kyushu University (Japan), 18 Nov. 2013.
  20. Some prime factorization results for free quantum group factors,
    Functional analysis seminar, UCLA (USA), 21 May 2014.
  21. Some prime factorization results for free quantum group factors,
    UCSD analysis seminar, UCSD (USA), 27 May 2014.
  22. On fundamental groups of tensor product II_1 factors,
    Operator algebra seminar, Kyoto University (Japan), 8 July 2014.
  23. Free independence in ultraproduct von Neumann algebras and applications,
    Operator algebra seminar, Kyoto University (Japan), 21 Oct. 2014.
  24. Free independence in ultraproduct von Neumann algebras and applications,
    Operator algebra seminar, University ot Tokyo (Japan), 22 Oct. 2014.
  25. Free independence in ultraproduct von Neumann algebras and applications,
    IHP seminar, Institute Henri Poincaré (France), 9 Dec. 2014.
  26. On fundamental groups of tensor product II_1 factors,
    Operator algebra seminar, KU Leuven (Belgium), 12 Dec. 2014.
  27. Unique prime factorization and bicentralizer problem for a class of type III factors,
    Operator algebra seminar, University of Tokyo (Japan), 20 May 2015.
  28. Introduction to von Neumann algebras and deformation/rigidity theory,
    Analysis seminar, Hokkaido University (Japan), 25 May 2015.
  29. Unique prime factorization and bicentralizer problem for a class of type III factors,
    Operator algebra seminar, Kyushu University (Japan), 1 June 2015.
  30. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    UCSD analysis seminar, UCSD (USA), 5 Nov. 2015.
  31. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Functional analysis seminar, UCLA (USA), 2 Dec. 2015.
  32. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Subfactor seminar, Vanderbilt university (USA), 9 Dec. 2015.
  33. Cartan subalgebras of tensor products of free quantum group factors with arbitrary factors,
    Functional analysis seminar, UCLA (USA), 10 Feb. 2016.
  34. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Operator Theory Seminar, Iowa university (USA), 23 Feb. 2016.
  35. On structures of type III factors (20min talk),
    Study meeting on Free Monotone Transport, Chiba (Japan), 7 Mar. 2016.
  36. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Operator algebra seminar, Kyushu University (Japan), 23 May 2016.
  37. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Operator algebra seminar, Kyoto University (Japan), 7 June 2016.
  38. Bi-exact groups, strongly ergodic actions and group measure space type III factors with no central sequence,
    Operator algebra seminar, University of Tokyo (Japan), 20 June 2016.
  39. Cartan subalgebras of tensor products of free quantum group factors with arbitrary factors,
    Operator algebra seminar, KU Leuven (Belgium), 1 July 2016.
  40. Cartan subalgebras of tensor products of free quantum group factors with arbitrary factors,
    Operator algebra seminar, Kyoto University (Japan), 18 Oct. 2016.
  41. On fundamental groups of tensor product II_1 factors,
    Operator algebra seminar, University of Tokyo (Japan), 29 May 2017.
  42. On fundamental groups of tensor product II_1 factors,
    Analysis seminar, Hokkaido university (Japan), 5 June 2017.
  43. On fundamental groups of tensor product II_1 factors,
    Analysis seminar, Hokkaido university (Japan), 5 June 2017.
  44. Introduction to deformation/rigidity theory for von Neumann algebras,
    Colloquium, Kyoto university (Japan), 26 Apr. 2017.
  45. Introduction to von Neumann algebra theory,
    Hakubi seminar, Kyoto university (Japan), 18 July 2017.
  46. Factoriality, Connes' type III invariants and fullness of amalgamated free product von Neumann algebras,
    Operator algebra seminar, University of Tokyo (Japan), 9 May 2018.
  47. Factoriality, Connes' type III invariants and fullness of amalgamated free product von Neumann algebras,
    Quantum Analysis Seminar, Nagoya University (Japan), 10 May 2018.
  48. Factoriality, Connes' type III invariants and fullness of amalgamated free product von Neumann algebras,
    Operator algebra seminar, Kyoto University (Japan), 15 May 2018.
  49. Introduction to amalgamated free product von Neumann algebras,
    Seminar Analysis and Applications, Delft University of Technology (Netherlands), 29 May 2018.
  50. Introduction to amalgamated free product von Neumann algebras,
    EGG seminar, EPFL (Switzerland), 4 June 2018.
  51. Intertwining theory for general von Neumann algebras and applications,
    Operator algebra seminar, KU Leuven (Belgium), 6 Dec. 2018.
  52. Intertwining theory for general von Neumann algebras and applications,
    Operator algebra seminar, University of Rome (Italy), 12 Dec. 2018.
  53. Unitary conjugacy for type III subfactors and W*-superrigidity,
    Operator algebra seminar, Kyoto University (Japan), 16 Apr. 2019.
  54. Unitary conjugacy for type III subfactors and W*-superrigidity,
    Operator algebra seminar, University of Tokyo (Japan), 8 May 2019.
  55. Unitary conjugacy for type III subfactors and W*-superrigidity,
    GAN seminar, Universite Paris-Sud (France), 18 Nov. 2019.
  56. Ergodic theory of affine isometric actions on Hilbert spaces,
    Operator algebra seminar, Kyoto University (Japan), 17 Dec. 2019.
  57. Ergodic theory of affine isometric actions on Hilbert spaces,
    Quantum Analysis Seminar, Nagoya University (Japan), 28 Jan 2020.
  58. Connes' bicentralizer problem for q-deformed Araki-Woods algebras,
    Tokyo-Kyoto joint online operator algebra seminar, online, 14 May 2020.
  59. Boundary and rigidity of nonsingular Bernoulli actions,
    Functional analysis seminar, online, UCLA (USA), 20 Jan. 2021.
  60. Boundary and rigidity of nonsingular Bernoulli actions,
    Operator algebra seminar, online, Seoul national university (Korea), 14 Apr. 2021.
  61. Boundary and rigidity of nonsingular Bernoulli actions,
    Tokyo-Kyoto joint online operator algebra seminar, online, 20 Apr. 2021.
  62. Pointwise inner automorphisms of almost periodic factors,
    Operator algebra seminar, University of Tokyo (Japan), 31 May 2022.
  63. Pointwise inner automorphisms of almost periodic factors,
    Operator algebra seminar, Kyoto University (Japan), 12 Jul. 2022.
  64. Haagerup and Størmer's conjecture for pointwise inner automorphisms,
    Operator algebra seminar, Kyoto University (Japan), 10 Oct. 2023.