Sang-il Oum (엄상일)


I am a Distinguished Research Fellow수석연구위원 of the Institute for Basic Science (IBS) and have been the CI (Chief Investigator) of the Discrete Mathematics Group이산수학그룹 at the Institute for Basic Science기초과학연구원 since December 2018. The group was established in December 2018 and is based in Daejeon, South Korea. I am also an Adjunct Professor겸직교수 of the Department of Mathematical Sciences, KAIST.
News (Blog)
Recent Preprints
- Blind cop-width and balanced minors of graphs (with Hector Buffière, Rutger Campbell, and Kevin Hendrey), 2025.
Mathematical Interests
Graph Theory, Matroid Theory, Combinatorics, Graph Algorithms, Structural Graph Theory, Parameterized Complexity, Width Parameters, etc.
Educations

- May 2005, Ph.D. in Applied and Computational Mathematics, Princeton University.
- Advisor: Paul Seymour. Thesis: Graphs of Bounded Rank-width
- Nov 2003, M.A. in Applied and Computational Mathematics, Princeton University.
- Feb 1998, B.S. in Mathematics, KAIST.
Academic Positions
- Aug 2024 – : Discrete Mathematics Group, Institute for Basic Science (IBS), Daejeon, Korea.
- Distinguished Research Fellow수석연구위원

- Sep 2025 – : Adjunct Professor (겸직교수), Department of Mathematical Sciences, KAIST.
- Jan 2008 – July 2024: Department of Mathematical Sciences, KAIST, Daejeon, Korea.
- Assistant Professor (Jan 2008 – Feb 2011), Associate Professor (Mar 2011 – Aug 2016), Professor (Sep 2016 – July 2024), KAIST Endowed Chair Professor (Mar 2023 – July 2024)
- Sep 2015 – Nov 2018: School of Mathematics, KIAS, Seoul, Korea.
- Affiliate Professor
- Jan 2007 – Dec 2007: Department of Combinatorics and Optimization, University of Waterloo, Waterloo, ON, Canada.
- Postdoctoral fellow
- Aug 2005 – Dec 2006: School of Mathematics, Georgia Institute of Technology, Atlanta, GA, USA.
- Visiting Assistant Professor
Editorial Activities
- SIAM Journal on Computing
- Graphs and Combinatorics
- Electronic Journal of Combinatorics
- Journal of the Korean Mathematical Society
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.
Selected List of Awards
- Choi Seok-Jeong Award of the Year올해의 최석정상, Minister of Science and ICT of Korea, 2022.
- Young Scientist Award젊은과학자상, President of Korea. 2012.
- TJ Park Junior Faculty Fellowship청암과학펠로, POSCO TJ Park Foundation, November 25, 2009.
Contact
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)
- Travel Instruction to the IBS


