Sang-hyun Kim

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A personal page of Sang-hyun Kim.



More about

  • Positions and committees
  • Teaching history
  • ORCiD
  • Managing editor, Journal of Korean Mathematical Society; Member, Y-KAST (Young Korean Academy of Science and Technology); Program Committee, East Asian School of Geometric Topology; Scientific Committee, One-dimensional actions of 3-manifold groups, Dijon, France (2019); Scientific Committee, yGGT-2019, Bilbao, Spain (2019); Review Board, National Research Foundation of Korea; Committee Member, Korean Mathematical Olympiad; Steering Committee, Seoul Science High School


Non-freeness of two-generated parabolic groups (with Thomas Koberda)
Ancillary file of the above paper for the computer--assisted proofs
  • 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.
Scientific Committee, yGGT-2019, Bilbao, Spain (July 2019)
Organizing Committee, Combinatorial and algebraic aspects of geometric structures, Chiang Mai, Thailand (July 2019)
Organizing Committee, One-dimensional actions of 3-manifold groups, Dijon, France (November 2019)


  • 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.