1. Aug. 31. 2022: Basic Research Laboratory Seminar, Hanyang University, South Korea
    Approximation properties in terms of nonlinear functions
  2. Aug. 1. 2022: The 17th ILJU School of Mathematics, Banach spaces and related topics, South Korea
    On the weak maximizing property
  3. June. 3. 2022: Seminario IMAC (Instituto Universitario de Matemáticas y Aplicaciones) de Análisis, Universitat Jaume I, Spain
    Quasi-ACK structure on Banach spaces
  4. May. 19-21. 2022: Korea Operator Algebra Seminar (KOAS), South Korea
    On the (weak) Corona theorem for Banach algebras of bounded holomorphic functions
  5. May. 17. 2022: BK21 FOUR Rookies Pitch, Seoul National University, South Korea
    On norm attaining functions
  6. May. 12. 2022:
    Functional Analysis Seminar, Pohang University of Science and Technology, South Korea
    On absolutely strongly exposing operators
  7. April. 29. 2022: Basic Science Research Institute, Pohang University of Science and Technology, South Korea (Online talk)
    On the residuality of norm attaining functions between Banach spaces 
  8. April. 28. 2022: Spring Meeting of the Korean Mathematical Society (Online talk) 
    The weak corona theorem for holomorphic functions on polydisk type domains
  9. Feb. 2. 2022: Seminar at Institute for Industrial and Applied Mathematics, Chungbuk National University, South Korea
    On the Lipschitz version of approximation properties
  10. Dec. 15. 2021: Mathematical Analysis Seminar, University of Valencia, Spain
    Residuality of the set of norm attaining operators
  11. Dec. 9. 2021: Seminario IMAC (Instituto Universitario de Matemáticas y Aplicaciones) de Análisis, Universitat Jaume I, Spain
    Some remarks on the Lipschitz numerical index of Banach spaces
  12. Oct. 21. 2021: Annual Meeting of the KMS (Online talk)
    Boundaries for Gelfand transform images of Banach algebras of holomorphic functions
  13. July. 21. 2021:
    The 16th ILJU School of Mathematics, Banach spaces and related topics, South Korea
    On the geometric structure of some Banach algebras of holomorphic functions
  14. June. 22. 2021:
    Workshop of the Functional Analysis and Applications Network, Spain (Online talk)
    An improvement of a theorem of Holub and Mujica
  15. May. 13. 2021:
    Banach Space Seminar, Korea Institute for Advanced Study, South Korea
    On non norm-attaining functions on a Banach space
  16. May. 6. 2021:
    Functional Analysis Seminar of the Institute of Mathematics and Statistics, University of Tartu, Estonia (Online)
    When do all bounded linear operators attain their norm?
  17. April. 29.2021:
    Seminar at the Department of Mathematics Education, Dongguk University, South Korea (Online)
    Some remarks on the weak maximizing property
  18. April. 29. 2021: Spring Meeting of the KMS (Online talk)
    On the existence of non norm-attaining operators
  19. Oct. 27. 2020: Functional Analysis Seminar of the Department of Mathematics of the Faculty of Exact and Natural Sciences of the University of Buenos Aires (Online talk)
    On holomorphic functions on polydisk type domains
  20. Oct. 23. 2020: Annual Meeting of the KMS (Online talk)
    Norm-attainment in the projective tensor product of Banach spaces
  21. July 3. 2020: Spring Meeting of the KMS (Online talk)
    Separation Theorems for Group Invariant Polynomials
  22. Feb. 13. 2020: Mathematical Analysis Seminar at University, Valencia, Spain
    Embedding of the open unit ball of \ell_\infty into fibers of H^\infty(B_{c_0})
  23. Jan. 31. 2020: V Congreso de Jóvenes Investigadores de la RSME, Jaume I University, Spain
    Analytic structure in fibers of the space of bounded analytic functions on the unit ball of c_0
  24. Jan. 24. 2020: XVII Encuentros Análisis Funcional Murcia-Valencia, University of Valencia, Spain
    Bollobás theorem on Hilbert spaces
  25. Oct. 26. 2019: Annual Meeting of the KMS, Hongik University, South Korea
    Analytic structure in fibers of H^\infty (B_{c_0})
  26. Apr. 20. 2019: Spring Meeting of the KMS, Kangwon National University, South Korea
    The Bishop-Phelps-Bollobás property and absolute sums
  27. Feb. 6. 2019: Mathematical Analysis Seminar, University of Valencia, Spain
    The Bishop-Phelps-Bollobás property and absolute sums
  28. Aug. 31. 2018:
    Seminar at the Department of Mathematics Education, Dongguk University, South Korea
    The Bishop-Phelps-Bollobás property in complex Hilbert spaces

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