Gui-Xian Tian

activity

20132025

most citedOn the arithmetic-geometric index of graphs

11 citations · 20 across the 16 of their papers we have counts for

collaborators

Showing 2017Show all

4 papers · 1 filter

math.CO2017

Some improved bounds on two energy-like invariants of some derived graphs

Gui-Xian Tian, Shu-Yu Cui

Given a simple graph $G$ , its Laplacian-energy-like invariant $L E L (G)$ and incidence energy $I E (G)$ are the sum of square root of its all Laplacian eigenvalues and signless Laplaci…

math.CO2017★ 1 cited

The normalized Laplacian spectra of the double corona based on $R$ -graph

Ping-Kang Yu, Gui-Xian Tian

For simple graphs $G$ , $G_{1}$ and $G_{2}$ , we denote their double corona based on $R$ -graph by $G^{(R)} \otimes {G_{1}, G_{2}}$ . This paper determines the normalized Laplacian spectrum o…

math.CO2017

On the Laplacian spectra of some double join operations of graphs

Gui-Xian Tian, Jing-Xiang He, Shu-Yu Cui

Many variants of join operations of graphs have been introduced and their spectral properties have been studied extensively by many researchers. This paper mainly focuses on the La…

math.CO2017★ 1 cited

On the normalized Laplacian spectra of some subdivision joins of two graphs

Gui-xian Tian, Shu-Yu Cui

For two simple graphs $G_{1}$ and $G_{2}$ , we denote the subdivision-vertex join and subdivision-edge join of $G_{1}$ and $G_{2}$ by $G_{1} \lor ˙ G_{2}$ and $G_{1} ⊻ G_{2}$ , respectively.…

Some improved bounds on two energy-like invariants of some derived graphs

The normalized Laplacian spectra of the double corona based on R-graph

On the Laplacian spectra of some double join operations of graphs

On the normalized Laplacian spectra of some subdivision joins of two graphs

The normalized Laplacian spectra of the double corona based on $R$ -graph