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Research

Dr Yemon Choi

Senior Lecturer in Pure Mathematics

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  1. A look at Fourier algebras of some Lie groups

    Choi, Y. (Speaker)

    21/06/2018

    Activity: Talk or presentation types › Invited talk

  2. A twisted inclusion of operator space tensor products

    Choi, Y. (Invited speaker)

    19/08/2021

    Activity: Talk or presentation types › Invited talk

  3. Alternating cocycles on Fourier algebras of Lie groups

    Choi, Y. (Keynote speaker)

    26/08/2019 → 29/08/2019

    Activity: Talk or presentation types › Invited talk

  4. Alternating cocycles on Fourier algebras of Lie groups

    Choi, Y. (Keynote speaker)

    12/01/2023

    Activity: Talk or presentation types › Invited talk

  5. Amenability constants of centres of group algebras

    Choi, Y. (Invited speaker)

    3/03/2020

    Activity: Talk or presentation types › Invited talk

  6. Amenability constants of Fourier algebras

    Choi, Y. (Speaker)

    6/09/2024

    Activity: Talk or presentation types › Invited talk

  7. Amenable algebras of operators on Hilbert space

    Choi, Y. (Keynote speaker)

    28/01/2022

    Activity: Talk or presentation types › Invited talk

  8. Amenable operator algebras

    Choi, Y. (Speaker)

    14/03/2014

    Activity: Talk or presentation types › Invited talk

  9. Amenable operator algebras: extensions and unitarizability

    Choi, Y. (Invited speaker)

    18/10/2022

    Activity: Talk or presentation types › Invited talk

  10. An introduction to non-amenability of B(E)

    Choi, Y. (Invited speaker)

    19/11/2020

    Activity: Talk or presentation types › Invited talk

  11. AP, WAP, CAP and another AP

    Choi, Y. (Invited speaker)

    17/05/2016

    Activity: Talk or presentation types › Invited talk

  12. Approximate homomorphisms: some old and new results

    Choi, Y. (Keynote speaker)

    11/07/2019 → 18/07/2019

    Activity: Talk or presentation types › Invited talk

  13. Banach algebra extensions of C*-algebras

    Choi, Y. (Speaker)

    5/07/2024

    Activity: Talk or presentation types › Invited talk

  14. Banach Journal of Mathematical Analysis (Journal)

    Choi, Y. (Peer reviewer)

    12/05/2021 → 21/11/2021

    Activity: Publication peer-review and editorial work types › Publication peer-review

  15. BIRS Research in Teams: Homological invariants of Fourier algebras

    Choi, Y. (Organiser) & Ghandehari, M. (Organiser)

    2/03/2024 → 10/03/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  16. British Mathematical Colloquium

    Choi, Y. (Member of programme committee)

    8/04/2019 → 11/04/2019

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  17. Bulletin des Sciences Mathématiques (Journal)

    Choi, Y. (Peer reviewer)

    18/08/2019 → 17/10/2019

    Activity: Publication peer-review and editorial work types › Publication peer-review

  18. Canadian Journal of Mathematics (Journal)

    Choi, Y. (Peer reviewer)

    29/06/2015 → 17/02/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  19. Canadian Mathematical Bulletin (Journal)

    Choi, Y. (Peer reviewer)

    6/09/2018 → 27/09/2018

    Activity: Publication peer-review and editorial work types › Publication peer-review

  20. CAP and ITAP for group von Neumann algebras

    Choi, Y. (Keynote speaker)

    16/08/2016

    Activity: Talk or presentation types › Invited talk

  21. Completely almost periodic elements of group von Neumann algebras

    Choi, Y. (Invited speaker)

    6/04/2021

    Activity: Talk or presentation types › Invited talk

  22. Completely almost periodic elements of Hopf von Neumann algebras

    Choi, Y. (Invited speaker)

    16/09/2017

    Activity: Talk or presentation types › Invited talk

  23. Complex Analysis and Operator Theory (Journal)

    Choi, Y. (Peer reviewer)

    10/01/2020 → 15/05/2020

    Activity: Publication peer-review and editorial work types › Publication peer-review

  24. Constructing alternating cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    18/02/2020

    Activity: Talk or presentation types › Invited talk

  25. Constructing alternating cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    31/01/2019

    Activity: Talk or presentation types › Invited talk

  26. Constructing amenable operator algebras

    Choi, Y. (Invited speaker)

    27/10/2015

    Activity: Talk or presentation types › Invited talk

  27. David Blecher

    Choi, Y. (Host) & Daws, M. (Host)

    3/06/2024 → 7/06/2024

    Activity: Hosting a visitor types › Hosting an academic visitor

  28. Derivations and 2-cocycles on Fourier algebras of connected groups

    Choi, Y. (Keynote speaker)

    15/06/2023

    Activity: Talk or presentation types › Invited talk

  29. Derivations and alternating cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    17/04/2018

    Activity: Talk or presentation types › Invited talk

  30. Derivations from the disc algebra to various modules

    Choi, Y. (Invited speaker)

    19/09/2018

    Activity: Talk or presentation types › Invited talk

  31. Derivations on Fourier algebras of connected groups

    Choi, Y. (Keynote speaker)

    8/04/2016

    Activity: Talk or presentation types › Invited talk

  32. Derivations on Fourier algebras of connected Lie groups

    Choi, Y. (Invited speaker)

    6/05/2014

    Activity: Talk or presentation types › Invited talk

  33. Derivations on Fourier algebras of some connected Lie groups

    Choi, Y. (Invited speaker)

    21/03/2014

    Activity: Talk or presentation types › Invited talk

  34. Derivations on semigroup algebras and Fourier algebras

    Choi, Y. (Keynote speaker)

    6/08/2015

    Activity: Talk or presentation types › Invited talk

  35. Directly finite algebras arising from group representations

    Choi, Y. (Invited speaker)

    3/10/2017

    Activity: Talk or presentation types › Invited talk

  36. Dual convolution for the affine group of the real line

    Choi, Y. (Invited speaker)

    18/07/2023

    Activity: Talk or presentation types › Invited talk

  37. External examiner for PhD viva (Leeds)

    Choi, Y. (Examiner)

    21/11/2016

    Activity: Examination types › Examination

  38. External examiner for PhD viva (Newcastle)

    Choi, Y. (Examiner)

    9/01/2018

    Activity: Examination types › Examination

  39. Fourier algebras and dual convolution

    Choi, Y. (Invited speaker)

    2/12/2020

    Activity: Talk or presentation types › Invited talk

  40. Glasgow Mathematical Journal (Journal)

    Choi, Y. (Peer reviewer)

    4/02/2014 → 2/03/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  41. Glasgow Mathematical Journal (Journal)

    Choi, Y. (Peer reviewer)

    20/03/2013 → 14/04/2013

    Activity: Publication peer-review and editorial work types › Publication peer-review

  42. Homological invariants of Fourier algebras

    Choi, Y. (Keynote speaker)

    12/07/2024

    Activity: Talk or presentation types › Invited talk

  43. Houston Journal of Mathematics (Journal)

    Choi, Y. (Peer reviewer)

    16/01/2016 → 26/09/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  44. ICMS Research in Groups: Amenability Constants of Fourier Algebras

    Choi, Y. (Organiser) & Ghandehari, M. (Organiser)

    10/04/2025 → 17/04/2025

    Activity: Participating in or organising an event types › Participation in conference - Academic

  45. Illinois Journal of Mathematics (Journal)

    Choi, Y. (Peer reviewer)

    12/09/2015 → 6/09/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  46. Indiana University Mathematics Journal (Journal)

    Choi, Y. (Peer reviewer)

    1/03/2016 → 20/12/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  47. Internal examiner for a PhD viva (Mathematics)

    Choi, Y. (Examiner)

    23/06/2017

    Activity: Examination types › Examination

  48. Internal examiner for a PhD viva (Mathematics)

    Choi, Y. (Examiner)

    7/05/2021

    Activity: Examination types › Examination

  49. Internal examiner for a PhD viva (Mathematics)

    Choi, Y. (Examiner)

    18/10/2023

    Activity: Examination types › Examination

  50. International Mathematical Research Notices (Journal)

    Choi, Y. (Peer reviewer)

    25/01/2017 → 23/07/2017

    Activity: Publication peer-review and editorial work types › Publication peer-review

  51. Jon Bannon

    Choi, Y. (Host)

    1/01/2019 → 30/06/2019

    Activity: Hosting a visitor types › Hosting an academic visitor

  52. Jorge Galindo

    Choi, Y. (Host) & Daws, M. (Host)

    26/02/2024 → 29/02/2024

    Activity: Hosting a visitor types › Hosting an academic visitor

  53. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    18/11/2019 → 6/12/2020

    Activity: Publication peer-review and editorial work types › Publication peer-review

  54. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    21/12/2017 → 16/10/2018

    Activity: Publication peer-review and editorial work types › Publication peer-review

  55. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    22/06/2016 → 15/12/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  56. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    25/11/2013 → 10/09/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  57. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    6/01/2014 → 18/08/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  58. Journal of Mathematical Analysis and Applications (Journal)

    Choi, Y. (Peer reviewer)

    6/01/2014 → 18/08/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  59. Journal of the American Mathematical Society (Journal)

    Choi, Y. (Peer reviewer)

    12/07/2014 → 15/10/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  60. Journal of the Australian Mathematical Society (Journal)

    Choi, Y. (Peer reviewer)

    26/03/2015 → 19/06/2015

    Activity: Publication peer-review and editorial work types › Publication peer-review

  61. Lower bounds on the amenability constant of the Fourier algebra

    Choi, Y. (Speaker)

    18/06/2022

    Activity: Talk or presentation types › Oral presentation

  62. Mathematical Proceedings of the Cambridge Philosophical Society (Journal)

    Choi, Y. (Peer reviewer)

    23/01/2016 → 9/06/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  63. NBFAS Meeting, Lancaster University

    Choi, Y. (Organiser)

    4/04/2024 → 5/04/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  64. Operator space tensor products, and cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    19/10/2021

    Activity: Talk or presentation types › Invited talk

  65. Operator space tensor products, and cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    29/11/2021

    Activity: Talk or presentation types › Invited talk

  66. Orthogonality relations and the study of derivations on Fourier algebras

    Choi, Y. (Invited speaker)

    24/07/2014

    Activity: Talk or presentation types › Invited talk

  67. Orthogonality relations and the study of derivations on Fourier algebras

    Choi, Y. (Invited speaker)

    18/01/2016

    Activity: Talk or presentation types › Invited talk

  68. PhD viva (Mathematics) at Lancaster University (Event)

    Choi, Y. (Chair)

    25/11/2019

    Activity: Membership types › Membership of committee

  69. Proceedings of the American Mathematical Society (Journal)

    Choi, Y. (Peer reviewer)

    2/05/2019 → 18/05/2019

    Activity: Publication peer-review and editorial work types › Publication peer-review

  70. Proceedings of the Edinburgh Mathematical Society (Journal)

    Choi, Y. (Peer reviewer)

    30/10/2020 → 15/03/2021

    Activity: Publication peer-review and editorial work types › Publication peer-review

  71. Proceedings of the Royal Society of Edinburgh: Section A Mathematics (Journal)

    Choi, Y. (Peer reviewer)

    1/11/2021 → 5/11/2021

    Activity: Publication peer-review and editorial work types › Publication peer-review

  72. Quarterly Journal of Mathematics (Journal)

    Choi, Y. (Peer reviewer)

    22/04/2015 → 24/11/2015

    Activity: Publication peer-review and editorial work types › Publication peer-review

  73. Semigroup Forum (Journal)

    Choi, Y. (Peer reviewer)

    9/06/2017 → 11/06/2018

    Activity: Publication peer-review and editorial work types › Publication peer-review

  74. Semigroup Forum (Journal)

    Choi, Y. (Peer reviewer)

    9/03/2014 → 17/11/2014

    Activity: Publication peer-review and editorial work types › Publication peer-review

  75. Some operator algebras that are locally similar to self-adjoint ones

    Choi, Y. (Invited speaker)

    26/04/2016

    Activity: Talk or presentation types › Invited talk

  76. Some results on direct finiteness of group algebras

    Choi, Y. (Keynote speaker)

    23/05/2017

    Activity: Talk or presentation types › Invited talk

  77. Studia Mathematica (Journal)

    Choi, Y. (Peer reviewer)

    29/03/2017 → 28/09/2017

    Activity: Publication peer-review and editorial work types › Publication peer-review

  78. Studia Mathematica (Journal)

    Choi, Y. (Peer reviewer)

    28/05/2015 → 9/12/2015

    Activity: Publication peer-review and editorial work types › Publication peer-review

  79. Studia Mathematica (Journal)

    Choi, Y. (Peer reviewer)

    29/01/2016 → 10/07/2016

    Activity: Publication peer-review and editorial work types › Publication peer-review

  80. The ZL-amenability constant of a finite group

    Choi, Y. (Invited speaker)

    11/03/2014

    Activity: Talk or presentation types › Invited talk

  81. The ZL-amenability constant of a finite group

    Choi, Y. (Invited speaker)

    1/05/2015

    Activity: Talk or presentation types › Invited talk

  82. Twisted tensor products, and cocycles on Fourier algebras

    Choi, Y. (Invited speaker)

    26/06/2018

    Activity: Talk or presentation types › Invited talk

  83. UK Operator Algebras Conference

    Choi, Y. (Participant)

    12/06/2024 → 14/06/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  84. Unitarizability, extensions, and amenable operator algebras

    Choi, Y. (Invited speaker)

    31/03/2022

    Activity: Talk or presentation types › Invited talk

  85. Unitarizable group representations and amenable operator algebras

    Choi, Y. (Invited speaker)

    28/05/2014

    Activity: Talk or presentation types › Invited talk

  86. University of Delaware

    Choi, Y. (Visiting researcher)

    1/03/2020 → 11/03/2020

    Activity: Business or School/HEI Engagement › Visiting an external academic institution

  87. Weak amenability of Fourier algebras: old and new results

    Choi, Y. (Invited speaker)

    14/04/2014

    Activity: Talk or presentation types › Invited talk

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