Talks

  1. Freely slice links, February 18, 2020, Mini-Symposium: Knot Theory in Okinawa, OIST, Okinawa, Japan.
  2. Non-slice linear combinations of iterated torus knots, February 10, 2020, The 15th East Asian Conference on Geometric Topology, RIMS, Kyoto University, Kyoto, Japan.
  3. Freely slice links, December 17, 2019, KIAS, Seoul, South Korea.
  4. Cappell-Shaneson homotopy 4-spheres, December 16, 2019, Korea University, Seoul, South Korea.
  5. Freely slice links, December 6, 2019, University of Warsaw, Warsaw, Poland.
  6. Freely slice links, October 26, 2019, 2019 KMS Annual meeting, Hongik University, Seoul, South Korea.
  7. Freely slice good boundary links, July 29, 2019, The Chinese University of Hong Kong, Shatin, Hong Kong.
  8. Freely slice good boundary links, June 18, 2019, Knot concordance and low-dimensional manifolds, Le Croisic, France.
  9. Freely slice good boundary links, January 22, 2019, The 14th East Asian Conference on Geometric Topology, Peking University, China.
  10. The bipolar filtration of topologically slice knots, November 30, 2018, Columbia University, New York, United States.
  11. Freely slice good boundary links, November 26, 2018, Brandeis University, Waltham, United States.
  12. Freely slice good boundary links, November 19, 2018, University of Texas at Austin, Austin, United States.
  13. Freely slice good boundary links, November 8, 2018, University of Wisconsin at Eau Claire, Eau Claire, United States.
  14. A family of freely slice good boundary links, November 5, 2018, Georgia Tech, Atlanta, United States.
  15. An introduction to the disk embedding conjecture, November 5, 2018, Georgia Tech, Atlanta, United States.
  16. A family of freely slice good boundary links, October 29, 2018, Rice University, Houston, United States.
  17. A family of freely slice good boundary links, October 22, 2018, University of Georgia, Athens, United States.
  18. A family of freely slice good boundary links, October 18, 2018, Michigan State University, East Lansing, United States.
  19. A family of freely slice good boundary links, October 16, 2018, North Carolina State University, Raleigh, United States.
  20. A family of freely slice good boundary links, October 2, 2018, University of Virginia, Charlottesville, United States.
  21. A family of freely slice good boundary links, September 26, 2018, Indiana University, Bloomington, United States.
  22. A family of freely slice good boundary links, September 15, 2018, Pohang University of Science and Technology, Pohang, South Korea.
  23. The bipolar filtration of topologically slice knots, June 14, 2018, Geometric structures on 3 and 4 manifolds, Inter-University Center, Dubrovnik, Croatia.
  24. An infinite-rank summand of knots with trivial Alexander polynomial, May 21, 2018, Ehwa Womans University, Seoul, South Korea.
  25. Ideal classes and Cappell-Shaneson homotopy 4-spheres, March 29, 2018, Durham University, Durham, United Kingdom.
  26. Introduction to knot concordance, March 6, 2018, The Chinese University of Hong Kong, Shatin, Hong Kong.
  27. The disparity between smoothly and topologically slice knots, March 1, 2018, The Chinese University of Hong Kong, Shatin, Hong Kong.
  28. Ideal classes and Cappell-Shaneson homotopy 4-spheres, January 29, 2018, The 13th East Asian School of Knots and Related Topics, KAIST, Daejeon, South Korea.
  29. The bipolar filtration of topologically slice knots, December 4, 2017, Oxford University, Oxford, United Kingdom.
  30. The bipolar filtration of topologically slice knots, November 27, 2017, Max-Planck-Institut für Mathematik, Bonn, Germany.
  31. Irreducible 3-manifolds that cannot be obtained by zero surgery on knots, November 14, 2017, The 2nd Pan-Pacific International Conference on Topology and Applications, Busan, South Korea.
  32. Bipolar filtration of topologically slice knots, October 26, 2017, Princeton University, Princeton, USA.
  33. Bipolar filtration of topologically slice knots, October 2, 2017, Durham University, Durham, United Kingdom.
  34. Irreducible 3-manifolds that cannot be obtained by zero surgery on knots, September 4, 2017, University of Tsukuba, Tsukuba, Japan.
  35. Bipolar filtration of topologically slice knots, July 11, 2017, The Chinese University of Hong Kong, Shatin, Hong Kong.
  36. Bipolar filtration of topologically slice knots, May 17, 2017, KAIST, Daejeon, South Korea.
  37. Bipolar filtration of topologically slice knots, April 25, 2017, Michigan State University, Michigan, USA.
  38. Irreducible 3-manifolds which cannot be obtained by 0-surgery on a knot, April 20, 2017, Université du Québec à Montréal, Montreal, Canada.
  39. Bipolar filtration of topologically slice knots, March 29, 2017, Differential Topology 17, The University of Electo-Communications, Chofu, Japan.
  40. On the bipolar filtration of topologically slice knots, February 15, 2017, The 12th East Asian School of Knots and Related Topics, University of Tokyo, Japan.
  41. On the bipolar filtration of topologically slice knots, January 17, 2017, Kyung Hee University, Seoul, South Korea.
  42. Cappell-Shaneson homology surgery and high dimensional knot and link concordance, November 29, 2016, Hausdorff Institute for Mathematics, Bonn, Germany.
  43. Ideal classes and Cappell-Shaneson homotopy 4-spheres, November 25, 2016, Hausdorff Research Institute for Mathematics, Bonn, Germany.
  44. On the bipolar filtration of topologically slice knots, October 31, 2016, Hausdorff Research Institute for Mathematics, Bonn, Germany.
  45. An infinite-rank summand of knots with trivial Alexander polynomial, August 19, 2016, Mini-workshop on knot theory, IBS Center for Geometry and Physics, Pohang, South Korea.
  46. Vanishing of Hom-Wu invariants for strongly amphicheiral knots, March 7, 2016, The Chinese University of Hong Kong, Shatin, Hong Kong
  47. Rasmussen s-invariants of satellites do not detect slice knots, January 27, 2016, The 11th East Asian School of Knots and Related Topics, Osaka City University, Japan.
  48. Cheeger-Gromov ρ-invariant and complexity of lens space, January 28, 2015, The 10th East Asian School of Knots and Related Topics, Shanghai, China.
  49. Whitney towers, gropes and Casson-Gordon type invariant of links, August 25, 2014, Knots and Low Dimensional Manifolds (a satellite conference of Seoul ICM 2014), BEXCO Center, Busan, Korea.
  50. Whitney towers, gropes and Casson-Gordon type invariant of links, September 19, 2013, Mini-workshop on knot concordance, Tokyo Institute of Technology, Tokyo, Japan.
  51. Introduction to the bipolar filtration, September 18, 2013, Mini-workshop on knot concordance, Tokyo Institute of Technology, Tokyo, Japan.
  52. Whitney towers, gropes and Casson-Gordon type invariant of links, June 11, 2013, Universität zu Köln, Oberseminar, Köln, Germany.
  53. Torsion elements in the rational knot concordance groups, January 15, 2013, The 9th East Asian School of Knots and Related topics, University of Tokyo, Tokyo, Japan.
  54. Whitney tower concordance and Casson-Gordon style invariant of links, January 11, 2012, The 8th East Asian School of Knots and Related topics, KAIST, Daejeon, Korea.
  55. Torsion elements in the Rational Knot concordance group, January 10, 2011, The 7th East Asian School of Knots and Related Topics, Hiroshima University, Hiroshima, Japan.