Activities

Our research group members

BK Research professor: Seulbee Lee is working on continued fractions, Brjuno/Wilton functions, moment formulars, etc.

Graduate students: Seongmin Kim is working on Diophantine approximations, including inhomogeneous Khintchine-Groshev theorem (to appear in IMRN). Kangrae park is working on Kleinian circle packings and Diophatine approximations, extreme value theorems, weak mixing, etc. Jaeyoung Kim is working on diagonal actions on Bruhat-Tits buildings. Minchang Kim is working on actions of groups over non-commutative algebras.

Seminar organizing

Dynamics & Number Theory 

DASOM Exchange seminar

Upcoming conference organizing

 International Conference for the 80th anniversary of the KMS,  ST Center, Seoul, June 22-25, 2026.

             Special (concentrated) session on Homogeneous dynamics

Invited speakers include Michael Bersudsky)(SNU), Dongryul Kim, Wooyeon Kim(KIAS), and Minju Lee (KAIST).

    If you are interested in giving a contributed talk, please email slim@snu.ac.kr.

Conference organized

1. Dynamical group theory VII (Nov.26-28, 2025)

2. KMS fall meeting, special session in homogeneous dynamics and number theory (Oct. 15-17, 2025)

3. KMS fall meeting, special session in number theory and dynamics (Oct. 26-28, 2023)

4. KWMS Winter Workshop (Feb. 14, 2023)

5. PRIMA 2022 (Dec. 5-10, 2022)

6. Workshop on dynamical systems and L-functions (Feb 1-5, 2021)

more

Invited talks

1. 1.  Lecture series, Thematic Program: Dynamical Systems beyond Pisot, Erwin Schrodinger Institute, Vienna, Austria (June 14-18,2027)

   2. Colloquium, Incheon Univ. (scheduled Spring, 2026)

   3.  Workshop on Topological and Geometric Structures in Low Dimensions & Geometry and Dynamics for Discrete Subgroups of Higher Rank Lie Groups, SLMath, Berkeley, USA (Jan 21-23, 2026)

   4. Samsung STF Annual forum, Seoul, Korea (Nov 7, 2025)

   5. Colloquium, Kangwon National University, Chuncheon, Korea (Sep 17, 2025)

   6. Numeration and Substitution, Tsukuba, Japan (Sept. 8-12, 2025)

   7. QSMS workshop, Goseong, Korea (Aug 22, 2025)

   8. KWMS International Conference, plenary speaker, Seoul, Korea (July 1, 2025)

   9. Samsung STF Global Research Symposium, Santa Rosa, USA (June 19-24, 2025)

   10. Colloquium, Postech, Pohang, Korea (May 16, 2025)

   11. KMS spring meeting, special session on Ergodic Theory and Dynamical Systems, KAIST, Daejeon, Korea (April 25, 2025)

   12. Public Lecture Series of KIAS June E Huh Center for Mathematical Challenges, Seoul, Korea (Apr 12, 2025)

   13. Hot Topics: Interactions between Harmonic Analysis, Homogeneous Dynamics, and Number Theory, SLMath, Berkeley, USA (March 6, 2025)

   14. Dynamical Group Theory V, Kimhae, Korea (Nov 21, 2024)

   15. Women in Dynamical Systems and Ergodic Theory, Pisa, Italy (May 20-24, 2024)

   16. IISER tifr International Colloquium: Randomness, Geometry and Dynamics, IISER-Pune, India (Jan 2024)

   17. Hyperbolic geometry of numbers, KIAS, Seoul, Korea (Dec 18-20, 2023)

   18. David Rees Distinguished Visiting Fellowship Lectures, Exeter, England (Oct 30th - Nov. 4th, 2023)

   19. 2023 NCTS Workshop on Dynamical Systems, NTU, Taiwan, (Jun 08 - 10, 2023).

   20. “Groups and dynamics in geometry“, Conference in honor of Ursula Hamenstadt, Ascona, Switzerland, (May 29- June 2, 2023)

   21. "Arithmetic Statistics, Automorphic Forms and Ergodic Methods", Bonn, Germany, (April 24- 28, 2023)

   22. Ergodic theory and Dynamical Systems seminar, Postech, Korea, (Nov. 2, 2022)

   23. HDRTExeter, England (May 18, 2022)

   24. Heilbronn Number Theory Seminar, Univ. of Bristol, England (May 12, 2021)

   25. Two lectures on "Homogeneous dynamics and Number theory", QSMS workshop, Seoul, Korea (Jan 25-26, 2021)

   26. Workshop on Topics at the Interface of Low-Dimensional Group Actions and Geometric Structures, IMS, Singapore (Jan 11-15, 2021)

      More

Service to the academic/professional community

1. Editor of the Journal of KMS, 2026-2028.

2. Vice Dean of the College of Natural Sciences, 2024 - 2026.

3. Managing editor of the Bulletin of KMS, 2022 - 2024.

4. Director of International Exchanges and External Cooperations, KMS (Korean Mathematical Society), 2023 - 2024.

5. Director of Graduate Studies of the Department of Mathematical Sciences, Seoul National University, 2023 - 2024.

6. General Secretary, KWMS (Korean Women in Mathematical Sciences), 2023.

7. Master of Ceremonies of the ICM opening ceremony, 2014.

Grants and honors

1. Korean National Science Foundation GBRL(Global Basic Research Lab) Grant, 2025-2028.

2. The Excellent Research Paper Award, Korean Mathematical Society, Korea, 2022.

3. The Choi Seok-jeong Award of the year, Ministry of Science and Technology, Korea, 2021.

4. Samsung STF Basic Science Research Grant, 2016-2021.

5. The 4th T.J. Park Science Fellowship for professors, Korea, 2011-2013.

6. Korean National Science Foundation BRL(Basic Research Lab) Grant, 2010-2015.

7. Korean National Science Foundation Basic Research Grant, 2010-2013, 2013-2015, 2016-2020, 2020-2024, 2025-2030.

8. National Science Foundation Research Grant in Topology, USA, 2009.

9. Ph. D. Summa cum Laude (mention tres honorable), Univ. Paris-Sud (Orsay), France, 2006.

10. B.S. Summa cum Laude, Seoul National University, Korea, 1999.