• Stefan Weltge, The relaxation complexity of the standard simplex is logarithmic

    Room B332 IBS (기초과학연구원)

    For a set $X$ of integer points, the relaxation complexity $\operatorname{rc}(X)$ is the smallest number of facets of any polyhedron P whose integer points are precisely those of X. In this paper, we focus on the case where X is the discrete standard simplex $\Delta_d = \{0, e_1, ..., e_d\}$. We show that $\operatorname{rc}(\Delta_d) =

  • 2026 Workshop on Topological Combinatorics

    GIST

    The 2026 Workshop on Topological Combinatorics will be held from June 28 to July 11, 2026 at Gwangju Institute of Science and Technology (GIST), located in Gwangju in the southwest of Republic of Korea.  The workshop aims to bring together researchers interested in applications of topology to combinatorics and related areas. This will be the

  • Ting-Wei Chao, The Oddtown Problem Modulo a Composite Number

    Room B332 IBS (기초과학연구원)

    A family of sets in $$ is called an $\ell$-Oddtown if the sizes of all sets are not divisible by $\ell$, but the sizes of pairwise intersections are divisible by $\ell$. The problem was completely solved when $\ell$ is a prime via an elegant linear algebraic method, showing that the family has size at most

  • Yaobin Chen, Maximum in-general-position set in a random subset of $\mathbb{F}^d_q$

    Room B332 IBS (기초과학연구원)

    Let $\alpha(\mathbb{F}_q^{d},p)$ be the maximum possible size of a point set in general position in a $p$-random subset of $\mathbb{F}_q^d$. We determine the order of magnitude of $\alpha(\mathbb{F}_q^{d},p)$ up to a polylogarithmic factor by proving the balanced supersaturation conjecture of Balogh and Luo. Our result also resolves a conjecture implicitly posed by the first author,

  • Meike Hatzel, TBA

    Room B332 IBS (기초과학연구원)
  • 2026 Summer School on Combinatorics and Algorithms (2026 조합론 및 알고리즘 여름학교)

    Bldg. E11, KAIST

    The 2026 Summer School on Combinatorics and Algorithms is a venue for students and early-career researchers to learn selected topics in theoretical computer science and discrete mathematics. It will be a great opportunity for young and aspiring researchers to study topics which are important but not covered during the lectures in the university classes. Website: