Guanglong Yu

most citedMaxima of the

Q

-index for outer-planar graphs

2 citations · 2 across the 6 of their papers we have counts for

collaborators

6 papers

math.CO2023

Some results on extremal spectral radius of hypergraph

Guanglong Yu

For a $h y p er g r a p h$ $G = (V, E)$ with a nonempty vertex set $V = V (G)$ and an edge set $E = E (G)$ , its $a d j a ce n cy$ $ma t r i x$ $\mathcal {A}_{\mathcal{G}}=[(\ma…

math.CO2023

The unicyclic hypergraph with extremal spectral radius

Guanglong Yu, Lin Sun

For a $h y p er g r a p h$ $G = (V, E)$ consisting of a nonempty vertex set $V = V (G)$ and an edge set $E = E (G)$ , its $a d j a ce n cy$ $ma t r i x$ $\mathcal {A}_{\mathcal{…

math.CO2023

The uniform supertrees with the extremal spectral radius

Guanglong Yu, Lin Sun

For a $h y p er g r a p h$ $G = (V, E)$ consisting of a nonempty vertex set $V = V (G)$ and an edge set $E = E (G)$ , its $a d j a ce n cy$ $ma t r i x$ $\mathcal {A}_{\mathcal{…

math.CO2014

Maxima of the signless Laplacian spectral radius for planar graphs

Guanglong Yu

The signless Laplacian spectral radius of a graph is the largest eigenvalue of its signless Laplacian. In this paper, we prove that the graph $K_{2} \nabla P_{n - 2}$ has the maximal…

math.CO2014

On the local base set of primitive and nonpowerful signed digraphs

Guanglong Yu, Zhengke Miao

In this paper, we consider the local bases of primitive nonpowerful sign pattern matrices, show that there are "gaps" in the local base set and characterize some sign pattern matri…

math.CO2014★ 2 cited

Maxima of the $Q$ -index for outer-planar graphs

Guanglong Yu

The $Q$ - $in d e x$ of graph $G$ is the largest eigenvalue $q (G)$ of its signless Laplacian $Q (G)$ . In this paper, we prove that the graph $K_{1} \nabla P_{n - 1}$ has the maximal $Q$ -ind…

Some results on extremal spectral radius of hypergraph

The unicyclic hypergraph with extremal spectral radius

The uniform supertrees with the extremal spectral radius

Maxima of the signless Laplacian spectral radius for planar graphs

On the local base set of primitive and nonpowerful signed digraphs

Maxima of the Q-index for outer-planar graphs

Maxima of the $Q$ -index for outer-planar graphs