News

Posted on

Hyunwoo Lee (이현우) gave a talk on a recent new lower bound for the multicolor triangle Ramsey number by OpenAI at the Discrete Math Seminar

On August 7, 2026, Hyunwoo Lee (이현우) from KAIST and IBS Extremal Combinatorics and Probability Group gave a talk at the Discrete Math Seminar on a recent super-exponential lower bound for the multicolor triangle Ramsey number by OpenAI. The title of his talk was “A super-exponential lower bound construction for the multicolor triangle Ramsey problem discovered by OpenAI“.

Posted on

Tomohiro Koana gave a talk on a faster FPT algorithm for expanding a subgraph to be a 2-connected subgraph of a given graph by adding at most k edges

On August 4, 2026, Tomohiro Koana from University of Tokyo gave a talk at the Discrete Math Seminar on a single-exponential fixed-parameter algorithm for enlarging a subgraph with at most k edges to make a 2-connected subgraph of a given graph. The title of his talk was “A Single-Exponential FPT Algorithm for 2-Vertex-Connectivity Augmentation“.

Posted on

Welcome Olga Medrano Martín del Campo, a new member of the IBS Discrete Mathematics Group

The IBS discrete mathematics group welcomes Dr. Olga Medrano Martín del Campo, a new research fellow at the IBS Discrete Mathematics Group from August 1, 2026. She received her Ph.D. from the University of Chicago under the supervision of Prof. Maryanthe Malliaris. She is interested in Learning in Theoretical Computer Science and connections to Logic and Combinatorics.

Posted on

2026 Korean Student Combinatorics Workshop was held in Gongju from July 27 to July 31

The 2026 Korean Student Combinatorics Workshop (KSCW 2026, 2026 조합론 학생 워크샵) was held at Gongju Hanok Village from July 27 to July 31, 2026.

Supported by the IBS Discrete Mathematics Group, the workshop brings together Korean graduate and undergraduate students and postdoctoral researchers studying combinatorics. Its aim is to promote interaction among young researchers, share research interests, and establish a foundation for future collaborative research.

The program included invited talks, contributed talks, and sessions for sharing and discussing open problems.

This workshop continues the Korean Student Combinatorics Workshop series from 2024.

The workshop was organized by the following four students:

Posted on

Zichao Dong gave a talk on the maximum size of a set family in which, for each i≤k, every intersection of i members has a prescribed parity at the Discrete Math Seminar

On July 21, 2026, Zichao Dong from the IBS Extremal Combinatorics and Probability Group gave a talk on the maximum size of a set family in which, for each i ≤ k, every intersection of i members has a prescribed parity at the Discrete Math Seminar. The title of his talk was “k-wise odd-even towns“.

Posted on

Yaobin Chen gave a talk on the maximum size of a subset in general position of a random subset of a finite-dimensional vector space over a finite field

On July 14, 2026, Yaobin Chen from the IBS Extremal Combinatorics and Probability Group gave a talk at the Discrete Math Seminar on the maximum size of a subset in general position of a random subset of a finite-dimensional vector space over a finite field. The title of his talk was “Maximum in-general-position set in a random subset of $\mathbb{F}_q^d$“.

IBS 이산수학그룹 Discrete Mathematics Group
기초과학연구원 수리및계산과학연구단 이산수학그룹
대전 유성구 엑스포로 55 (우) 34126
IBS Discrete Mathematics Group (DIMAG)
Institute for Basic Science (IBS)
55 Expo-ro Yuseong-gu Daejeon 34126 South Korea
E-mail: dimag@ibs.re.kr, Fax: +82-42-878-9209
Copyright © IBS 2018. All rights reserved.