3 papers
math.CO2023
A Note Related to Graph Theory
Jinfeng Li
This article foucuses on -free graph. In this paper, we prove that if G is -free, then . We then use our result to obtain the upper…
math.CO2023
A tight linear chromatic bound for ()-free graphs
Rui Li, Jinfeng Li, Di Wu
For two vertex disjoint graphs and , we use to denote the graph with vertex set and edge set , and use to denote the graph wit…
math.CO2023
Optimal chromatic bound for (, house)-free graphs
Rui Li, Di Wu, Jinfeng Li
Let and be two vertex disjoint graphs. The {\em union} is the graph with and . We use to denote a {\em…