Yufei Huang

activity

20192023

p

-Sombor matrices and beyond

2 citations · 5 across the 8 of their papers we have counts for

collaborators

8 papers

math.GM2023

Note on VDB Topological Indices of k-Cyclic Graphs

Hechao Liu, Zenan Du, Yufei Huang +2

Let $G$ be a connected graph with $n$ vertices and $m$ edges. The vertex-degree-based topological index (VDB) (or graphical function-index) $T I (G)$ of $G$ with edge-weight function…

math.CO2022

Regular graphs with a complete bipartite graph as a star complement

Xiaona Fang, Lihua You, Rangwei Wu +1

Let $G$ be a graph of order $n$ and $μ$ be an adjacency eigenvalue of $G$ with multiplicity $k \geq 1$ . A star complement $H$ for $μ$ in $G$ is an induced subgraph of $G$ of order $…

math.CO2022

The spread of generalized reciprocal distance matrix

Hechao Liu, Yufei Huang

The generalized reciprocal distance matrix $R D_{α} (G)$ was defined as $R D_{α} (G) = α R T (G) + (1 - α) R D (G), 0 \leq α \leq 1.$ Let $λ_{1}(RD_α(G))\geq λ_{2}(RD_α(G))\geq \cdots \geq λ_{n}(RD…

math.CO2022★ 1 cited

Sharp bounds on the symmetric division deg index of graphs and line graphs

Hechao Liu, Yufei Huang

For a graph $G$ with vertex set $V_{G}$ and edge set $E_{G}$ , the symmetric division deg index is defined as $SDD(G)=\sum\limits_{uv\in E_{G}}(\frac{d_{u}}{d_{v}}+\frac{d_{v}}{d_{u…

math.CO2022

The Sombor index and coindex of two-trees

Zenan Du, Lihua You, Hechao Liu +1

The Sombor index of a graph $G$ , introduced by Ivan Gutman, is defined as the sum of the weights $d_{G} (u)^{2} + d_{G} (v)^{2}$ of all edges $uv$ of $G$ , where $d_{G} (u)$ denotes the deg…

math.CO2021★ 2 cited

Spectral properties of $p$ -Sombor matrices and beyond

Hechao Liu, Lihua You, Yufei Huang +1

Let $G = (V (G), E (G))$ be a simple graph with vertex set $V (G) = {v_{1}, v_{2}, \dots, v_{n}}$ and edge set $E (G)$ . The $p$ -Sombor matrix $S_{p} (G)$ of $G$ is the square matr…

math.CO2021★ 2 cited

Ordering chemical graphs by Sombor indices and its applications

Hechao Liu, Lihua You, Yufei Huang

Topological indices are a class of numerical invariants that predict certain physical and chemical properties of molecules. Recently, two novel topological indices, named as Sombor…

math.CO2019

The general spectral radius and majorization theorem of $t$ -cone graphs with given degree sequences

Yufei Huang, Muhuo Liu

The general spectral radius of a graph $G$ , denoted by $Θ (G, α)$ , is the maximal eigenvalue of $M_{α} (G) = A (G) + α D (G)$ $(α \geq 0)$ , where $A (G)$ and $D (G)$ are the adjacency matrix and…

Note on VDB Topological Indices of k-Cyclic Graphs

Regular graphs with a complete bipartite graph as a star complement

The spread of generalized reciprocal distance matrix

Sharp bounds on the symmetric division deg index of graphs and line graphs

The Sombor index and coindex of two-trees

Spectral properties of p-Sombor matrices and beyond

Ordering chemical graphs by Sombor indices and its applications

The general spectral radius and majorization theorem of t-cone graphs with given degree sequences

Spectral properties of $p$ -Sombor matrices and beyond

The general spectral radius and majorization theorem of $t$ -cone graphs with given degree sequences