Results 1 to 10 of about 28,315 (192)

Note of the hyper-Wiener index [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The hyper-Wiener index WW of a chemical tree T is defined as the sum of the products n1n2, over all pairs υ,ν of vertices of T, where n1 and n2 are the number of vertices of T, lying on the two sides of the path which connects υ and ν.
Gutman Ivan   +2 more
doaj   +6 more sources

Modified hyper-Wiener index of trees

open access: yesDiscrete Applied Mathematics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
I Z Milovanović, E I Milovanović
exaly   +3 more sources

Hyper-Wiener index and Laplacian spectrum [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The hyper-Wiener index WWW of a chemical tree T is defined as the sum of the product n1 n2 n3, over all pairs u, u of vertices of T, where n1 and n2 are the number of vertices of T, lying on the two sides of the path which connects u and u, and n3 is the
IVAN GUTMAN
doaj   +5 more sources

The hyper-Wiener index of graph operations

open access: yesComputers and Mathematics With Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
H Yousefi-Azari, Ali Reza Ashrafi
exaly   +4 more sources

The hyper-Wiener index of the generalized hierarchical product of graphs

open access: yesDiscrete Applied Mathematics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mehdi Eliasi
exaly   +4 more sources

The Wiener index, degree distance index and Gutman index of composite hypergraphs and sunflower hypergraphs [PDF]

open access: yesHeliyon, 2022
Topological invariants are numerical parameters of graphs or hypergraphs that indicate its topology and are known as graph or hypergraph invariants. In this paper, topological indices of hypergraphs such as Wiener index, degree distance index and Gutman ...
Sakina Ashraf   +3 more
doaj   +3 more sources

Maximum Zagreb index, minimum hyper-Wiener index and graph connectivity

open access: yesApplied Mathematics Letters, 2009
AbstractIn this work we show that among all n-vertex graphs with edge or vertex connectivity k, the graph G=Kk∨(K1+Kn−k−1), the join of Kk, the complete graph on k vertices, with the disjoint union of K1 and Kn−k−1, is the unique graph with maximum sum of squares of vertex degrees.
Ali Behtoei   +2 more
exaly   +3 more sources

On the Steiner hyper-Wiener index of a graph [PDF]

open access: yesApplied Mathematics and Computation, 2018
In this paper, we study the Steiner hyper-Wiener index of a graph, which is obtained from the standard hyper-Wiener index by replacing the classical graph distance with the Steiner distance. It is shown how this index is related to the Steiner Hosoya polynomial, which generalizes similar result for the standard hyper-Wiener index. Next, we show how the
Niko Tratnik
exaly   +3 more sources

The Hyper-Wiener Index of Trees of Order n with Diameter d [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2016
The hyper-Wiener index is a kind of extension of the Wiener index, used for predicting physicochemical properties of organic compounds. The hyper-Wiener index WW(G) is defined as WW(G)=1/2∑u,v∈VGdGu,v+dG2u,v with the summation going over all pairs of ...
Gaixiang Cai   +4 more
doaj   +2 more sources

The hyper edge-Wiener index of corona product of graphs [PDF]

open access: yesTransactions on Combinatorics, 2015
Let G be a simple connected graph. The edge-Wiener index W e (G) is the sum of all distances between edges in G , whereas the hyper edge-Wiener index WW e (G) is defined as {\footnotesize WW e (G)=12 W e (G)+12 W 2 e (G) }, where {footnotesize W 2 e ...
Abolghasem Soltani, Ali Iranmanesh
doaj   +1 more source

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