Talks

Talks

1. [2025/02/21] Algebraic Geometry Seminar, Michigan university, US, "Shifted symplectic pushforwards"

2. [2025/02/14] Recent developments in higher genus curve counting, Simons Center, New York, US, "Symplectic pushforwards and DT theory"

3. [2025/02/06] Séminaire Darboux, Sorbonne Université,  Paris, France, "Darboux theorem for shifted symplectic stacky fibrations" 

4. [2025/02/04] Algebraic Geometry Seminar, Utrecht university, Utrecht, Netherlands, "Shifted symplectic pushforwards" 

5. [2024/12/16]  Enumerative Geometry in East Asia 2024, KIAS, Seoul, Korea, "Symplectic pushforwards and DT theory"

6. [2024/11/21] HCMC seminar, KIAS, Seoul, Korea, "Cohomological Hall algebras for 3-Calabi-Yau categories"

7. [2024/10/29] Mini-workshop on shifted symplectic structures and enumerative geometry, Pohang, Korea, "Cohomological Hall algebras" 

8. [2024/10/29] Mini-workshop on shifted symplectic structures and enumerative geometry, Pohang, Korea, "Virtual Lagrangian cycles" 

9. [2024/10/28] Mini-workshop on shifted symplectic structures and enumerative geometry, Pohang, Korea, "Shifted symplectic pushforwards" 

10. [2024/10/16] 2024-2 Geometry Seminar, Yonsei University, Seoul, Korea, "Cohomological Hall algebras for Calabi-Yau 3-folds"

11. [2024/10/02] Seoul-Taipei enumerative geometry meeting, Busan, Korea, "Categorification of enumerative geometry"

12. [2024/07/22] Workshop on moduli spaces, virtual invariants and shifted symplectic structures 2024, KIAS, Seoul, Korea, "Shifted symplectic pushforwards"

13. [2024/06/08] Workshop on Sheaf Stable Pairs and Birational Geometry, Beijing Institute for Mathematical Sciences and Applications, online, "Counting surfaces on Calabi-Yau 4-folds"

14. [2024/05/28] Online Geometry and Physics Seminar, Zhejiang University,  online, "Virtual Lagrangian cycles"

15. [2024/04/22] Seminar in Kyoto University, Kyoto University, Kyoto, Japan, "Shifted symplectic pushforwards"

16. [2024/03/13] Workshop on Enumerative Geometry, Shanghai Center for Mathematical Sciences, Shanghai, China, "Virtual Lagrangian cycles"

17. [2024/01/17] Mirror Symmetry and Related Topics, KIAS, Seoul, Korea, "Virtual Lagrangian cycles"

18. [2024/01/04] Symposium in Algebraic Geometry, Busan, Korea, "Shifted symplectic pushforwards"

19. [2023/10/13] Junior Trimester Program (Algebraic geometry: derived categories, Hodge theory, and Chow groups),  Hausdorff Research Institute for Mathematics, Bonn, Germany, "Minicourse on shifted symplectic structures III"

20. [2023/10/11] Junior Trimester Program  (Algebraic geometry: derived categories, Hodge theory and Chow groups), Hausdorff Research Institute for Mathematics, Bonn, Germany, "Minicourse on shifted symplectic structures II"

21. [2023/10/09] Junior Trimester Program (Algebraic geometry: derived categories, Hodge theory and Chow groups), Hausdorff Research Institute for Mathematics, Bonn, Germany, "Minicourse on shifted symplectic structures I"

22. [2023/07/13] Workshop on Quantum Analysis 2023, Sokcho, Korea,  "A Darboux theorem and virtual Lagrangian cycles for (-2)-shifted symplectic fibrations"

23. [2023/06/26] Workshop on moduli spaces, virtual invariants and shifted symplectic structures, KIAS, Seoul, Korea, "A Darboux theorem and virtual Lagrangian cycles for (-2)-shifted symplectic fibrations"

24. [2023/06/22] Workshop on moduli spaces, virtual invariants and shifted symplectic structures, KIAS, Seoul, Korea, "An introduction to virtual fundamental cycles via derived algebraic geometry II"

25. [2023/06/20] Workshop on moduli spaces, virtual invariants and shifted symplectic structures, KIAS, Seoul, Korea, "An introduction to virtual fundamental cycles via derived algebraic geometry I"

26. [2023/04/15] Yeungnam Seminar on Algebraic Geometry X, Busan, Korea "Introduction to virtual fundamental cycles and shifted symplectic structures II"

27. [2023/04/14] Yeungnam Seminar on Algebraic Geometry X, Busan, Korea "Introduction to virtual fundamental cycles and shifted symplectic structures I"

28. [2023/03/07] MS Seminar, Kavli IPMU, Tokyo, Japan, "Donaldson-Thomas theory of Calabi-Yau 4-folds via derived algebraic geometry"

29. [2023/02/20] MAGIC Seminar, Imperial College, London, UK, "Counting surfaces on Calabi-Yau 4-folds"

30. [2023/02/14] Seminaire d'Homotopie en Geometrie Algebrique, Toulouse Universite, Toulouse, France,  "Donaldson-Thomas theory of Calabi-Yau 4-folds via derived algebraic geometry"

31. [2023/02/08] AG Seminar, Utrecht University, Utrecht, Netherland, "Cosection localization via derived algebraic geometry"

32. [2023/02/06] Algebraic geometry and moduli seminar, ETH Zurich, Zurich, Switzerland "Virtual pullbacks in Donaldson-Thomas theory of Calabi-Yau 4-folds"

33. [2022/12/23] Seminar of Algebraic Geometry in East Asia, online, "Counting surfaces on Calabi-Yau 4-folds"

34. [2022/12/22] KIAS Seminar, KIAS, Seoul, Korea, "Counting surfaces on Calabi-Yau 4-folds"

35. [2022/12/15] Sinchon Workshop on Algebraic Geometry, Seoul, Korea, "Counting surfaces on Calabi-Yau 4-folds"

36. [2022/10/28] Current Developments in Algebra and Topology, Buyeo, Korea, "Counting surfaces on Calabi-Yau 4-folds"

37. [2022/10/18] Rookies Pitch, Seoul National University, Seoul, Korea, "Counting surfaces on Calabi-Yau 4-folds"

38. [2022/09/07] Seminar in Seoul National University, Seoul National University, Seoul, Korea, "Introduction to derived algebraic geometry II"

39. [2022/09/06] Seminar in Seoul National University, Seoul National University, Seoul, Korea, "Introduction to derived algebraic geometry I"

40. [2022/08/27] Workshop on Geometry of Moduli Spaces, Gangneung, Korea, "Counting surfaces on Calabi-Yau 4-folds"

41. [2022/08/25] Workshop on Quantum Analysis 2022, Gangneung, Korea, "Counting surfaces on Calabi-Yau 4-folds"

42. [2022/08/24] Workshop on Quantum Analysis 2022, Gangneung, Korea, "Counting surfaces on Calabi-Yau 4-folds"

43. [2021/11/11] Thursday Seminar, KIAS, online, "Virtual pullbacks in Donaldson-Thomas theory of Calabi-Yau 4-folds"

44. [2021/11/09] 2021 허식교수 기념 심포지엄, Seoul National University, Seoul, "Virtual pullbacks in Donaldson-Thomas theory of Calabi-Yau 4-folds"

45. [2021/10/21] Utrecht Seminar, online, "Virtual pullbacks in Donaldson-Thomas theory of Calabi-Yau 4-folds"

46. [2021/10/14] Utrecht Seminar, online, "Localizing virtual cycles for Donaldson-Thomas invariants of Calabi-Yau 4-folds"

47. [2021/08/17] Daegu Algebraic Geometry Seminar on Moduli Spaces of Curves and Surfaces, Daegu, Korea, "Virtual pullbacks in Donaldson-Thomas theory of Calabi-Yau 4-folds"

48. [2021/02/25] Weakly Geometry Seminar, KIAS, online, "Localizing virtual cycles for Donaldson-Thomas invariants of Calabi-Yau 4-folds"

49. [2020/09/22] Recent Advances in Moduli and Invaraiants, online, "Virtual intersection theories"

50. [2020/01/16] CGP Seminar, IBS-CGP, Pohang, Korea, "Virtual intersection theories"

51. [2019/11/26] Inaugural France-Korea Conference, Bordeaux, France, "Virtual intersection theories"

52. [2019/10/27] KMS Annual Meeting, Seoul, Korea, "Virtual intersection theories"