2 papers
math.CO2024
Exact results for some extremal problems on expansions I
Xizhi Liu, Jialei Song, Long-Tu Yuan
The expansion of a graph , denoted by , is the -graph obtained from by adding a new vertex to each edge such that different edges receive different vertices. For lar…
math.CO2024
Hypergraph anti-Ramsey theorems
Xizhi Liu, Jialei Song
The anti-Ramsey number of an -graph is the minimum number of colors needed to color the complete -vertex -graph to ensure the existence of a rainbow…