Ligong Wang

most citedSpectral radius of graphs of given size with forbidden subgraphs

1 citations · 1 across the 4 of their papers we have counts for

collaborators

4 papers

math.CO2023

The $α$ -index of graphs without intersecting triangles/quadrangles as a minor

Yanting Zhang, Ligong Wang

The $A_{α}$ -matrix of a graph $G$ is the convex linear combination of the adjacency matrix $A (G)$ and the diagonal matrix of vertex degrees $D (G)$ , i.e., $A_α(G) = αD(G) + (1 - α)A(G…

math.CO2023

Turán numbers of general hypergraph star forests

Lin-Peng Zhang, Hajo Broersma, Ligong Wang

Let $F$ be a family of $r$ -uniform hypergraphs, and let $H$ be an $r$ -uniform hypergraph. Then $H$ is called $F$ -free if it does not contain any member of $\mat…

math.CO2023

On the $α$ -index of minimally $k$ -(edge-)connected graphs for small $k$

Jiayu Lou, Ligong Wang, Ming Yuan

Let $G$ be a graph with adjacency matrix $A (G)$ and let $D (G)$ be the diagonal matrix of vertex degrees of $G$ . For any real $α \in [0, 1]$ , Nikiforov defined the $A_{α}$ -matrix of a g…

math.CO2023★ 1 cited

Spectral radius of graphs of given size with forbidden subgraphs

Yuxiang Liu, Ligong Wang

Let $ρ (G)$ be the spectral radius of a graph $G$ with $m$ edges. Let $S_{m - k + 1}^{k}$ be the graph obtained from $K_{1, m - k}$ by adding $k$ disjoint edges within its independent set.…

The α-index of graphs without intersecting triangles/quadrangles as a minor

Turán numbers of general hypergraph star forests

On the α-index of minimally k-(edge-)connected graphs for small k

Spectral radius of graphs of given size with forbidden subgraphs

The $α$ -index of graphs without intersecting triangles/quadrangles as a minor

On the $α$ -index of minimally $k$ -(edge-)connected graphs for small $k$