Computation of resistance distance and Kirchhoff index of the two classes of silicate networks

MS Sardar, XF Pan, SA Xu - Applied Mathematics and Computation, 2020 - Elsevier
The resistance distance between two vertices of a simple connected graph G is equal to the
resistance between two equivalent points on an electrical network, constructed so as to …

[HTML][HTML] Entropiesand Degree-Based Topological Indices of Generalized Sierpiński Graphs

SA Xu, JD Si, JB Liu - Fractal and Fractional, 2025 - mdpi.com
Fractals are geometric patterns that appear self-similar across all length scales and are
constructed by repeating a single unit on a regular basis. Entropy, as a core thermodynamic …

A method for constructing graphs with the same resistance spectrum

SA Xu, H Zhou, XF Pan - Discrete Mathematics, 2025 - Elsevier
Let G be a simple graph with vertex set V ( G ) and edge set E ( G ) . The resistance distance
R G ( x , y ) between two vertices x , y of G, is defined to be the effective resistance between …

[HTML][HTML] Entropies and Degree-Based Topological Indices of Coronene Fractal Structures

SA Xu, JB Liu - Fractal and Fractional, 2025 - mdpi.com
Molecular fractals are geometric patterns that appear self-similar across all length scales
and are constructed by repeating a single unit on a regular basis. Entropy, as a core …

An explicit formula for the harmonic indices and harmonic polynomials of carbon nanocones CNCk[n]

MS Sardar, SA Xu, W Sajjad, S Zafar… - Journal of Information …, 2020 - Taylor & Francis
Let G be a simple molecular graph without directed and multiple edges and without loops.
The vertex and edge-sets of G are denoted by V(G) and E(G), respectively. Suppose G is also …

[PDF][PDF] Vertex–Degree Function–Index for Convex Functions

SA Xu, B Wu - match.pmf.kg.ac.rs
An (n, m)-graph is a graph with n vertices and m edges. The vertex-degree function-index Hf
(G) of a graph G is defined as Hf (G)=∑ v∈ V (G) f (d (v)), where f is a real function. In this …

On the resistance diameter of the Cartesian and lexicographic product of paths

YX Li, SA Xu, H Hua, XF Pan - Journal of Applied Mathematics and …, 2022 - Springer
Let G be a graph with vertex set V(G). For $$u,v\in V(G)$$ u , v ∈ V ( G ) , we write $$v\sim u$$
v ∼ u if vertices v and u are adjacent. The Cartesian product of G and H, denoted by $$G\…

On the resistance diameters of graphs and their line graphs

SA Xu, YX Li, H Hua, XF Pan - Discrete Applied Mathematics, 2022 - Elsevier
Let G = ( V ( G ) , E ( G ) ) be a graph with vertex set V ( G ) and edge set E ( G ) . The line graph
L G of G is the graph with E ( G ) as its vertex set and two vertices of L G are adjacent in L …

On Normalized Laplacian, Degree-Kirchhoff Index of the Strong Prism of Generalized Phenylenes*

U Ali, Y Ahmad, SA Xu, XF Pan - Polycyclic Aromatic Compounds, 2022 - Taylor & Francis
The eigenvalues of normalized Laplacian are extremely important for analyzing the structure
properties of non-regular graphs. A molecular graph of generalized phenylene L n is a …

Distance-decay equations of antibiotic resistance genes across freshwater reservoirs

ZF Guo, K Das, WJ Boeing, YY Xu, E Borgomeo… - Water Research, 2024 - Elsevier
Distance-decay (DD) equations can discern the biogeographical pattern of organisms and
genes in a better way with advanced statistical methods. Here, we developed a data …