Results 31 to 40 of about 4,539,869 (304)

Equiseparability on Terminal Wiener Index [PDF]

Applied Mathematics Letters, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Deng, Xiaotie, Zhang, Jie
openaire   +6 more sources

Hosoya Polynomials Of Some Semiconducotors

Journal of Kufa for Mathematics and Computer, 2014
The Hosoya polynomial of a graph G is a graphical invariant polynomial that its first derivative at x = 1 is equal to the Wiener index and second derivative at x =1 is equal to the hyperWiener index.
Azeez Lafta Jabir, AbdulJalil M. Khalaf, Emad A. Jaffar AL-Mulla   +2 more
doaj   +1 more source

Wiener index in graphs with given minimum degree and maximum degree [PDF]

Discrete Mathematics & Theoretical Computer Science, 2020
Let $G$ be a connected graph of order $n$.The Wiener index $W(G)$ of $G$ is the sum of the distances between all unordered pairs of vertices of $G$. In this paper we show that the well-known upper bound $\big( \frac{n}{\delta+1}+2\big) {n \choose 2}$ on ...
P. Dankelmann, Alex Alochukwu
semanticscholar   +1 more source

Hosoya and Harary Polynomials of Hourglass and Rhombic Benzenoid Systems

Journal of Chemistry, 2020
In the fields of chemical graph theory, topological index is a type of a molecular descriptor that is calculated based on the graph of a chemical compound.
Zhong-Lin Cheng, Ashaq Ali, Haseeb Ahmad, Asim Naseem, Maqbool Ahmad Chaudhary   +4 more
doaj   +1 more source

The Graovac-Pisanski index of a connected bipartite graph is an integer number [PDF]

, 2017
The Graovac-Pisanski index, also called the modified Wiener index, was introduced in 1991 and represents an extension of the original Wiener index, because it considers beside the distances in a graph also its symmetries.
Knor, Martin, Pleteršek, Petra Žigert, Tratnik, Niko, Črepnjak, Matevž   +3 more
core   +3 more sources

GTI-space : the space of generalized topological indices [PDF]

, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
A.R Matamala, A.R Matamala, A.T Balaban, Adelio R. Matamala, B Zhou, D. Plavšić, D.J Klein, D.J Klein, D.J Klein, E Estrada, E Estrada, E. Estrada, E. Estrada, E. Estrada, E. Estrada, E. Estrada, Ernesto Estrada, G.G Cash, H Wiener, H.P Schultz, H.P Schultz, I Gutman, I Gutman, I Gutman, I Gutman, J. Gálvez, J. Gálvez, J.R Votano, M. Randić, M. Randić, O Ivanciuc, R Todeschini, R.F Brown, W.R. Müller, Z. Mihalić   +34 more
core   +1 more source

Wiener index, Harary index and graph properties

Discrete Applied Mathematics, 2017
Lihua Feng, Xiaomin Zhu, Weijun Liu
semanticscholar   +3 more sources

A Note on “Wiener Index of a Fuzzy Graph and Application to Illegal Immigration Networks”

Applied Sciences, 2021
Connectivity parameters have an important role in the study of communication networks. Wiener index is such a parameter with several applications in networking, facility location, cryptology, chemistry, and molecular biology, etc.
Hoon Lee, Xue-gang Chen, Moo Young Sohn
doaj   +1 more source

Comparison of the Wiener and Kirchhoff Indices of Random Pentachains

Journal of Mathematics, 2021
Let G be a connected (molecule) graph. The Wiener index WG and Kirchhoff index KfG of G are defined as the sum of distances and the resistance distances between all unordered pairs of vertices in G, respectively.
Shouliu Wei, Wai Chee Shiu, Xiaoling Ke, Jianwu Huang   +3 more
doaj   +1 more source

Wiener, edge-Wiener, and vertex-edge-Wiener index of Basilica graphs

Discrete Applied Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Matteo Cavaleri, Daniele D’Angeli, Alfredo Donno, Stefan Hammer   +3 more
openaire   +2 more sources