CI (Chief Investigator), IBS Discrete Mathematics Group (DIMAG) (Dec. 2018~current)

Distinguished Research Fellow, Institute for Basic Science (IBS). (Aug. 2024-current)

IBS 이산수학그룹 CI (Chief Investigator) (2018.12~현재)

기초과학연구원(IBS) 수석연구위원 (2024.8~현재)

Previously, I was a professor at the Department of Mathematical Sciences, KAIST. (January 1, 2008~July 31, 2024)

2008년 1월 1일부터 2024년 7월 31일까지 KAIST 수리과학과 교수였습니다.

Discrete Mathematics Group, Institute for Basic Science (IBS), 55 Expo-ro, Yuseong-gu Daejeon, 34126 South Korea

34126 대전광역시 유성구 엑스포로 55 기초과학연구원 이산수학그룹

  • Email: ibs.re.kr after sangil@
  • Tel: +82-42-878-9200
  • Office: Room B321, Theory Building (3rd floor)

Ph.D. from Princeton University, 2005. Advisor: Paul Seymour.
B.S. from KAIST, 1998. Visiting Assistant Professor at Georgia Institute of Technology, 2005-2006. Postdoctoral fellow at University of Waterloo, 2007.

Mathematical Interests

Graph Theory, Matroid Theory, Combinatorics, Graph Algorithms, Structural Graph Theory, Parameterized Complexity, Width Parameters, etc.

Post-doctoral positions at IBS

If you are interested in becoming a post-doctoral researcher working with me, then please visit dimag.ibs.re.kr.

Discrete Math Seminar

I am organizing the Discrete Math Seminar. I strongly encourage everyone including students interested in discrete mathematics to attend this seminar and subscribe to the mailing list.

Committees

Selected List of Awards

Coauthors

Jungho Ahn (안정호), Benjamin Bergougnoux, Robert Brignall, Debsoumya Chakraborti, Vera Chekan, Eun-Kyung Cho (조은경), Hojin Choi (최호진), Ilkyoo Choi (최일규), Suyoung Choi (최수영), Maria Chudnovsky, Linda Cook, Bruno Courcelle, Konrad K. Dabrowski, James Davies, Matt DeVos, Reinhard Diestel, François Dross, Katherine Edwards, Eduard Eiben, Fedor V. Fomin, Robert Ganian, Tomáš Gavenčiak, Jim Geelen, J. Pascal Gollin, Georg Gottlob, Yangyan Gu, Qi Hao, Kevin Hendrey, Illya V. Hicks, Petr Hliněný, Hao Huang, Tony Huynh, Seonghyuk Im (임성혁), Jisu Jeong (정지수), Dong Yeap Kang (강동엽), Mihyun Kang (강미현), Mamadou Moustapha Kanté, Ken-ichi Kawarabayashi (河原林 健一), H. A. Kierstead, Donggyu Kim (김동규), Eunjung Kim (김은정), Jaehoon Kim (김재훈), Jinha Kim (김진하), Minki Kim (김민기), Ringi Kim (김린기), Sang-hyun Kim (김상현), Seog-jin Kim (김석진), Taegyun Kim (김태균), Younjin Kim (김연진), Andrew D. King, Daniel Kráľ, Stephan Kreutzer, O-joung Kwon (권오정), Choongbum Lee (이중범), Duksang Lee (이덕상), Joonkyung Lee (이준경), Sang June Lee (이상준), Chun-Hung Liu, Mikiya Masuda, Dillon Mayhew, Rose McCarty, Patrice Ossona de Mendez, Bojan Mohar, Matthias Mnich, Huy-Tung Nguyen, Sergey Norin, Christophe Paul, Daniel Paulusma, Michał Pilipczuk, Bruce Reed, Ignasi Sau, Sigve Hortemo Sæther, Detlef Seese, Vaidy Sivaraman, Paul Seymour, Dimitrios M. Thilikos, Erik Jan van Leeuwen, Dominic van der Zypen, Martin Vatshelle, Maryam Verdian-Rizi, Sounggun Wee (위성군), Paul Wollan, David R. Wood, Ningyuan Yang, Youngho Yoo, Wei-Hsuan Yu, Xin Zhang, Xuding Zhu

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