Ligong Wang

activity

20152023

most citedOrdering of bicyclic graphs by matching energy

7 citations · 33 across the 43 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.CO2023

Fractional revival on semi-Cayley graphs over abelian groups

Jing Wang, Ligong Wang, Xiaogang Liu

In this paper, we investigate the existence of fractional revival on semi-Cayley graphs over finite abelian groups. We give some necessary and sufficient conditions for semi-Cayley…

math.CO2023

Sharp bounds for Laplacian spectral moments of digraphs with a fixed dichromatic number

Xiuwen Yang, Hajo Broersma, Ligong Wang

The $k$ -th Laplacian spectral moment of a digraph $G$ is defined as $\sum_{i = 1}^{n} λ_{i}^{k}$ , where $λ_{i}$ are the eigenvalues of the Laplacian matrix of $G$ and $k$ is a nonnegative in…

math.CO2023★ 1 cited

The sufficient conditions for $k$ -leaf-connected graphs in terms of several topological indices

Tingyan Ma, Ligong Wang, Yang Hu

Let $G = (V (G), E (G))$ be a graph with vertex set $V (G)$ and edge set $E (G)$ . For $k \geq 2$ and given any subset $S \subseteq ∣ V (G) ∣$ with $∣ S ∣ = k$ , if a graph $G$ of order $|V(G)|\geq k…

Fractional revival on semi-Cayley graphs over abelian groups

Sharp bounds for Laplacian spectral moments of digraphs with a fixed dichromatic number

The sufficient conditions for k-leaf-connected graphs in terms of several topological indices

The sufficient conditions for $k$ -leaf-connected graphs in terms of several topological indices