IBS Extremal Combinatorics and Probability Group (ECOPRO) is a research group in the Center for Mathematical and Computational Sciences in the Institute for Basic Science (IBS), led by the Chief Investigator Prof. Hong Liu.

ECOPRO aims at establishing a vibrant research hub in Extremal and Probabilistic Combinatorics to attract young talents and initiate new collaborations across related fields.

  • YouTube for seminar/conference videos.
  • bilibili for online course and reading group videos.


Summer school 2022

Summer school 2022

Our first summer school from August 1 to 6. It contains three parts: 1. expanders, 2. topological methods, 3. combinatorial…



Workshops and Conferences

There are no upcoming events.

Seminars and Colloquiums

October 2022

Tuesday October 4

4:30 pm – 5:30 pm
Zixiang Xu (徐子翔), On the degenerate Turán problems
Room B332, IBS (기초과학연구원)

Thursday October 6

10:00 am – 11:00 am
Konstantin Tikhomirov, A remark on the Ramsey number of the hypercube
Zoom ID: 870 0312 9412 (ibsecopro)

Tuesday October 11

4:30 pm – 5:30 pm
Nika Salia, Exact results for generalized extremal problems forbidding an even cycle
Room B332, IBS (기초과학연구원)

Tuesday October 18

4:30 pm – 5:30 pm
Florent Koechlin, TBA
Room B332, IBS (기초과학연구원)


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IBS Extremal Combinatorics and Probability Group
기초과학연구원 수리및계산과학연구단 극단 조합 및 확률 그룹
대전 유성구 엑스포로 55 (우) 34126
IBS Extremal Combinatorics and Probability Group (ECOPRO)
Institute for Basic Science (IBS)
55 Expo-ro Yuseong-gu Daejeon 34126 South Korea
E-mail:, Fax: +82-42-878-9209
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