Sang-hyun Kim

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A personal page of Sang-hyun Kim.




  • All publications and talks
  • Interest Geometric group theory: right-angled Artin group, hyperbolic group, mapping class group, diffeomorphism group, acute triangulations.
MSC2000 20F65 Geometric group theory; 57M60 Group actions in low dimensions; 20F36 Braid groups; Artin groups; 37C85 Dynamics of group actions other than Z and R, and foliation.
Non-freeness of two-generated parabolic groups (with Thomas Koberda)
Ancillary file of the above paper for the computer--assisted proofs


  • Y-KAST Member (Young Korean Academy of Science and Technology), Feb 26, 2018 - present.
  • Research Excellence Award, College of Natural Sciences, Seoul National University, March 3, 2017.
  • Excellent Paper Award, Korean Mathematical Society, April 23, 2016.
For the work: (With Thomas Koberda), Embedability between right-angled Artin groups, Geometry & Topology 17 (2013) 493--530.
An award first established in September 2015. Based on recommendations by students council, faculty committee and course survey.
  • Creative Teaching Grand Award, KAIST, February 15, 2013.
  • Sang-San Prize for Young Mathematicians, Korean Mathematical Society, October 5, 2012.
  • Excellence Prize, College Mathematics Competition, Korean Mathematical Society, 1994 and 1995.
  • Silver medal, the 34th International Mathematical Olympiad, Turkey, 1993.

Current positions and conference organization

  • Managing editor, Journal of Korean Mathematical Society (2019 - )
  • Review Board (RB), National Research Foundation of Korea (2018 - )
  • Educational committees
Steering Committee, Seoul Science High School (2018 - )
Korean Mathematical Olympiad (KMO) Committee (2013 - )
  • Conference organization
Program Committee, East Asian School of Geometric Topology (2018 - )
Organizing Committee, Combinatorial and algebraic aspects of geometric structures, Chiang Mai, Thailand, July 18 - 26, 2019.
Organizing / Scientific Committee, One-dimensional actions of 3-manifold groups, Dijon, France, November 4 - 8, 2019.
Scientific Committee, yGGT-2019, Bilbao, Spain, June 30 - July 5, 2019.
  • Article reviews
Reviewer, MR (Mathematical Reviews)
Reviewer, zbMATH (Zentralblatt MATH)