collaborators

6 papers

math.CO2026

On a weaker notion of cross -intersecting families

Jiangdong Ai, Ming Chen, Seokbeom Kim +1

We prove that if two families and satisfy $\sum_{1 \leq i, j \leq \ell} \lvert F_i \cap F_j' \rvert…

math.CO2026

Anticoncentration of random spanning trees in almost regular graphs

Hyunwoo Lee

The celebrated formula of Otter \emph{[Ann. of Math. (2) 49 (1948), 583--599]} asserts that the complete graph contains exponentially many non-isomorphic spanning trees. In this pa…

math.CO2025

On Sidorenko exponents of hypergraphs

Hyunwoo Lee

For an -graph , define Sidorenko exponent as where de…

math.CO2025

On high discrepancy -factorizations of complete graphs

Jiangdong Ai, Fankang He, Seonghyuk Im +1

We proved that for every sufficiently large , the complete graph with an arbitrary edge signing admits a high discrepancy -factor decom…

math.CO2025

Reconstructing hypergraph matching polynomials

Donggyu Kim, Hyunwoo Lee

By utilizing the recently developed hypergraph analogue of Godsil's identity by the second author, we prove that for all , one can reconstruct the matching polynom…

math.CO2025

A quantitative improvement on the hypergraph Balog-Szemerédi-Gowers theorem

Hyunwoo Lee

In this note, we obtain a quantitative improvement on the hypergraph variant of the Balog-Szemerédi-Gowers theorem due to Sudakov, Szemerédi, and Vu [Duke Math. J.129.1 (2005): 129…