기초과학연구원 이산수학그룹
On January 20, 2026, Tomáš Masařík from the University of Warsaw, Poland, gave a talk on a linear-time algorithm to find a balanced separator in an H-minor-free graph at the Discrete Math Seminar. The title of his talk was “Separator Theorem for Minor-free Graphs in Linear Time“.
On January 13, 2026, Ferdinand Ihringer from the Southern University of Science and Technology, China gave a talk on low-degree Boolean functions and appications of vector space Ramsey numbers at the Discrete Math Seminar. The title of his talk was “Boolean Functions Analysis in the Grassmann Graph“.
On January 6, 2026, Daniel Mock from RWTH Aachen gave a talk on an algorithmic framework for showing the fixed-parameter tractability of the dominating set problem and its generalizations at the Discrete Math Seminar. The title of his talk was “A Simple Algorithm for the Dominating Set Problem and More“.
The IBS Discrete Mathematics Group welcomes Dr. Eero Räty, Dr. Xiaofan Yuan, and Dr. Xin Wei, new research fellows at the IBS Extremal Combinatorics and Probability Group, starting January 1, 2026.
Dr. Eero Räty received his Ph.D. from the University of Cambridge under the supervision of Prof. Imre Leader. Until recently, he was a postdoctoral researcher at Umeå University, Sweden. He is interested in extremal and probabilistic combinatorics.
Dr. Xiaofan Yuan received her Ph.D. from the Georgia Institute of Technology under the supervision of Prof. Xingxing Yu. She is interested in graph theory and extremal combinatorics. Until recently, she was a postdoctoral researcher at Arizona State University.
Dr. Xin Wei received his Ph.D. from the University of Science and Technology of China under the supervision of Prof. Xiande Zhang. His research interests include combinatorics, coding theory, and graph theory and their interactions.