Peng Xiao

activity

20152018

most citedOrdering of bicyclic graphs by matching energy

7 citations · 9 across the 4 of their papers we have counts for

collaborators

4 papers

math.CO2018★ 2 cited

The largest signless Laplacian spectral radius of uniform supertrees with diameter and pendent edges (vertices)

Cunxiang Duan, Ligong Wang, Peng Xiao

Let $S_{1} (m, d, k)$ be the $k$ -uniform supertree obtained from a loose path $P : v_{1}, e_{1}, v_{2}, \dots, v_{d}, e_{d}, v_{d + 1}$ with length $d$ by attaching $m - d$ edges at verte…

math.CO2017★ 7 cited

Ordering of bicyclic graphs by matching energy

Xiangxiang Liu, Ligong Wang, Peng Xiao

Let $G$ be a simple graph of order $n$ and $μ_{1}, μ_{2}, \dots, μ_{n}$ be the roots of its matching polynomial. The matching energy is defined as the sum $\sum_{i = 1}^{n} ∣ μ_{i} ∣$ , wh…

math.CO2016

5-regular oriented graphs with optimum skew energy

Lifeng Guo, Ligong Wang, Peng Xiao

Let $G$ be a simple undirected graph and $G^{σ}$ be the corresponding oriented graph of $G$ with the orientation $σ$ . The skew energy of $G^{σ}$ , denoted by $ε_{s} (G^{σ})$ , is de…

math.CO2015

Complex unit gain bicyclic graphs with rank 2, 3 or 4

Yong Lu, Ligong Wang, Peng Xiao

A $T$ -gain graph is a triple $Φ = (G, T, φ)$ consisting of a graph $G = (V, E)$ , the circle group $T = {z \in C : ∣ z ∣ = 1}$ and a gain function $φ:\overrightarrow{E…