Results 161 to 170 of about 32,921 (201)

Hyper-Wiener index for fuzzy graph and its application in share market

Journal of Intelligent & Fuzzy Systems, 2021
Topological indices have an important role in molecular chemistry, network theory, spectral graph theory and several physical worlds. Most of the topological indices are defined in a crisp graph.
S. R. Islam, M. Pal
semanticscholar   +1 more source

Formulas for the Hyper-Wiener Index of Trees

Journal of Chemical Information and Computer Sciences, 1994
I. Lukovits
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Correction to “The hyper‐Wiener index of diamond nanowires”

International Journal of Quantum Chemistry
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The Overall Hyper-Wiener Index

Journal of Mathematical Chemistry, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, X. H., Lin, J. J.
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A Novel Definition of the Hyper-Wiener Index for Cycles

Journal of Chemical Information and Computer Sciences, 1994
I. Lukovits, W. Linert
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The Hosoya polynomial, Wiener index, and Hyper-Wiener index of Jahangir Graph \(J_{8,m}\)

Online Journal of Analytic Combinatorics, 2020
Let \( G(V,E) \) be a simple connected graph with vertex set \( V \) and edge set \( E \). The Wiener index in the graph is \(W(G) = \sum_{\{u,v\} \subseteq V} d(u,v),\) where \( d(u,v) \) is the distance between \( u \) and \( v \), and the Hosoya ...
Ramy S. Shaheen
semanticscholar   +1 more source

Hyper-Wiener index for acyclic structures

Journal of Structural Chemistry, 1999
The discriminating ability of the hyper-Wiener index (the ability to discriminate between isomers) is discussed on a class of acyclic structures (trees) including the molecular graphs of alkanes. For trees with 4 to 26 vertices, numerical data on the classes of trees with coincident indices were obtained. For classes with maximal power, the diagrams of
A. A. Dobrynin, I. Gutman, V. N. Piottukh-Peletskii   +2 more
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Bond order weighted hyper-Wiener index

Journal of Molecular Structure: THEOCHEM, 2003
Abstract In this work the hyper-Wiener index calculated and are weighted by Mulliken bond orders. We have considered several formaldehyde derivatives to try to relate these values to an actual physical property (vibrational frequencies in this case). This was done in order to establish a relation between the quantities.
Xinhua Li, Abraham F. Jalbout
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The extended hyper-Wiener index

Canadian Journal of Chemistry, 2003
According to the definition of molecular connectivity and the definition of a hyper-Wiener index, a novel set of hyper-Wiener indexes (Rn, mRn) are defined and are named the extended hyper-Wiener indexes. Where n = 1, 2, 3, 4,... represents the type of subgraph units and is the number of endmost atoms of the subgraph unit, m is the number of atoms of ...
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Hyper Wiener Index of C4C8(S) Nanotubes

Current Nanoscience, 2010
The hyper Wiener index of a molecular graph is defined as one half of the sum of the distances and square distances between all (unordered) pairs of vertices of the graph. In this paper we find an exact formula for calculation of the hyper Wiener index of nanotubes which have square and octagon structure and denoted by C4C8(S) nanotubes.
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