Xueyi Huang

collaborators

3 papers

math.CO2025

On the Turán number of odd-ballooning of $3$ -chromatic graphs

Longfei Fang, Xueyi Huang, Huiqiu Lin +1

Given a graph $F$ , the Turán number $ex (n, F)$ is the maximum number of edges in any $n$ -vertex $F$ -free graph. The odd-ballooning of $F$ , denoted by $F^{o}$ , is a graph obtai…

math.CO2023

Spectral condition for the existence of a chorded cycle

Jiaxin Zheng, Xueyi Huang, Junjie Wang

A chord of a cycle $C$ is an edge joining two non-consecutive vertices of $C$ . A cycle $C$ in a graph $G$ is chorded if the vertex set of $C$ induces at least one chord. In this pa…

math.CO2023

Turán problem for $C_{2 k + 1}^{-}$ -free signed graph

Junjie Wang, Yaoping Hou, Xueyi Huang

In this paper, we study the Turán problem for $C_{2 k + 1}^{-}$ . Suppose that $G ˙$ is an unbalanced signed graph of order $n$ with $e (G ˙)$ edges. Let $λ_{1} (G ˙)$ be th…

On the Turán number of odd-ballooning of 3-chromatic graphs

Spectral condition for the existence of a chorded cycle

Turán problem for C2k+1−​-free signed graph

On the Turán number of odd-ballooning of $3$ -chromatic graphs

Turán problem for $C_{2 k + 1}^{-}$ -free signed graph