### Director's Seminar

#### [IBS-CGP Seminar]

#### January 31, 2018 –

#### CGP Main Hall

The purpose of this seminar is to give updates on current developments and mathematical research highlights in general to CGP members and visitors, and to promote deeper interaction between the speaker and the audience. The seminar's general spirit reflects that of the famous Gelfand Seminar.

#### Organizer

Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

#### Talk(s)

- Birational Calabi-Yau manifolds have the same small quantum product
- 13:30 – 15:30, 2020-05-20 at CGP Main Hall
- Yifan Li (IBS Center for Geometry and Physics)

- Birational Calabi–Yau n-folds have the same Zeta functions.
- 13:00 – 15:00, 2020-05-13 at CGP Main Hall
- Jun Yong Park (IBS Center for Geometry and Physics)

- Quantum cohomology ring of birational Calabi-Yau manifolds
- 13:30 – 15:30, 2020-05-06 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Cluster structure for Vianna’s Lagrangian tori
- 13:30 – 15:30, 2020-02-05 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Cluster algebras, quiver representations and Caldero-Chapoton formula
- 13:30 – 15:30, 2020-01-22 at CGP Main Hall
- Jongmyeong Kim (IBS Center for Geometry and Physics)

- Introduction to cluster structures II
- 16:00 – 18:00, 2019-12-18 at CGP Main Hall
- Eunjeong Lee (IBS Center for Geometry and Physics)

- Introduction to cluster structures I
- 13:30 – 15:30, 2019-12-11 at CGP Main Hall
- Eunjeong Lee (IBS Center for Geometry and Physics)

- 'Organizational meeting' for `Cluster algebra and related topics'
- 13:30 – 15:30, 2019-11-27 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula and Floer theory VI
- 13:30 – 15:30, 2019-11-13 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula and Floer theory V
- 13:30 – 15:30, 2019-11-06 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula and Floer theory IV
- 13:30 – 15:30, 2019-10-23 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula and Floer theory III
- 13:30 – 15:30, 2019-09-18 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- On SYZ fibrations
- 13:30 – 15:30, 2019-09-04 at CGP Main Hall
- Yat-Hin Suen (IBS Center for Geometry and Physics)

- Wall crossing formula and Floer homology II
- 13:30 – 15:30, 2019-08-21 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall crossing formula and Floer homology I
- 13:30 – 15:30, 2019-08-14 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Augmentations and sheaves for Legendrian graphs
- 13:30 – 15:30, 2019-07-31 at CGP Main Hall
- Tao Su (Ecole Normale Superieure - CNRS)

- Involutive Lie bialgebras: Algebra II
- 13:30 – 15:30, 2019-06-05 at CGP Main Hall
- Gabriel C. Drummond-Cole (IBS Center for Geometry and Physics)

- Involutive Lie bialgebras: Algebra
- 13:30 – 15:30, 2019-05-15 at CGP Main Hall
- Gabriel C. Drummond-Cole (IBS Center for Geometry and Physics)

- Arboreal singularities
- 13:30 – 15:30, 2019-02-13 at CGP Main Hall
- Byung Hee An (IBS Center for Geometry and Physics)

- Introduction to Okounkov body II
- 13:30 – 15:30, 2018-05-16 at CGP Main Hall
- Joonyeong Won (IBS Center for Geometry and Physics)

- Introduction to Okounkov body
- 13:30 – 15:30, 2018-05-09 at CGP Main Hall
- Joonyeong Won (IBS Center for Geometry and Physics)

- Variation of GIT and wall crossing II
- 13:30 – 15:30, 2018-04-04 at CGP Main Hall
- Kyoung-Seog Lee (IBS Center for Geometry and Physics)

- Variation of GIT and wall crossing
- 13:30 – 15:30, 2018-03-21 at CGP Main Hall
- Kyoung-Seog Lee (IBS Center for Geometry and Physics)

- Wall-crossing formula III
- 13:30 – 15:30, 2018-03-07 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula II
- 13:30 – 15:30, 2018-02-21 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)

- Wall-crossing formula
- 13:30 – 15:30, 2018-01-31 at CGP Main Hall
- Yong-Geun Oh (IBS Center for Geometry and Physics, POSTECH)