Xin Lu

collaborators

2 papers

math.CO2025

Phase transitions of the ErdÅs-GyÃ¡rfÃ¡s function

Xinyu Hu, Qizhong Lin, Xin Lu +1

Given positive integers $p, q$ . For any integer $k \geq 2$ , an edge coloring of the complete $k$ -graph $K_{n}^{(k)}$ is said to be a $(p, q)$ -coloring if every copy of $K_{p}^{(k)}$ receive…

math.CO2024

New bounds of two hypergraph Ramsey problems

Chunchao Fan, Xinyu Hu, Qizhong Lin +1

We focus on two hypergraph Ramsey problems. First, we consider the ErdÅs-Hajnal function $r_{k} (k + 1, t; n)$ . In 1972, ErdÅs and Hajnal conjectured that the tower growth rate of $r_k(…

Phase transitions of the ErdÅs-GyÃ¡rfÃ¡s function

New bounds of two hypergraph Ramsey problems

Phase transitions of the ErdÅs-GyÃ¡rfÃ¡s function