Leilei Zhang

collaborators

2 papers

math.CO2023

Further results on the number of cliques in graphs covered by long cycles

Leilei Zhang

Let $Γ (n, k)$ be the set of $2$ -connected $n$ -vertex graphs containing an edge that is not on any cycle of length at least $k + 1.$ Let $g_{s} (n, k)$ denote the maximum number of $s$ -cli…

math.CO2022

The minimum Kirchhoff index of phenylene chains

Leilei Zhang

Let $G$ be a connected graph. The resistance distance between any two vertices of $G$ is equal to the effective resistance between them in the corresponding electrical network cons…