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Hosoya Polynomials of Power Graphs of Certain Finite Groups [PDF]

open access: yesMolecules, 2022
Assume that G is a finite group. The power graph P(G) of G is a graph in which G is its node set, where two different elements are connected by an edge whenever one of them is a power of the other.
Bilal Ahmad Rather   +3 more
doaj   +4 more sources

Hosoya polynomial of zigzag polyhex nanotorus [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
The Hosoya polynomial of a molecular graph G is defined as ... , where d(u,v) is the distance between vertices u and v. The first derivative of H(G,l) at l = 1 is equal to the Wiener index of G, defined as .... . The second derivative of .... at l = 1 is
MEHDI ELIASI, BIJAN TAERI
doaj   +4 more sources

Power Graphs of Finite Groups Determined by Hosoya Properties [PDF]

open access: yesEntropy, 2022
Suppose G is a finite group. The power graph represented by P(G) of G is a graph, whose node set is G, and two different elements are adjacent if and only if one is an integral power of the other. The Hosoya polynomial contains much information regarding
Fawad Ali   +4 more
doaj   +2 more sources

Peripheral Hosoya polynomial of composite graphs [PDF]

open access: yesTransactions on Combinatorics, 2022
Peripheral Hosoya polynomial of a graph $G$ is defined as‎,‎ \begin{align*}‎‎ &PH(G,\lambda)=\sum_{k\geq 1}d_P(G,k)\lambda^k,\\‎‎ \text{where $d_P(G,k)$ is the number} &\text{ of pairs of peripheral vertices at distance $k$ in $G$.}‎‎ \end{align ...
Anteneh Ali, Kishori Narayankar
doaj   +3 more sources

Certain Topological Indices of Non-Commuting Graphs for Finite Non-Abelian Groups [PDF]

open access: yesMolecules, 2022
A topological index is a number derived from a molecular structure (i.e., a graph) that represents the fundamental structural characteristics of a suggested molecule.
Fawad Ali   +5 more
doaj   +2 more sources

Structural differentiation of graphs using Hosoya-based indices. [PDF]

open access: yesPLoS ONE, 2014
In this paper, we introduce the Hosoya-Spectral indices and the Hosoya information content of a graph. The first measure combines structural information captured by partial Hosoya polynomials and graph spectra. The latter is a graph entropy measure which
Matthias Dehmer   +2 more
doaj   +2 more sources

On Properties of Distance-Based Entropies on Fullerene Graphs [PDF]

open access: yesEntropy, 2019
In this paper, we study several distance-based entropy measures on fullerene graphs. These include the topological information content of a graph I a ( G ) , a degree-based entropy measure, the eccentric-entropy I f σ ( G ...
Modjtaba Ghorbani   +4 more
doaj   +2 more sources

The n-Hosoya Polynomials of the Square of a Path and of a Cycle [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2021
The n-Hosoya polynomial of a connected graph G of order t is defined by: Hn (G;x) = ∑ Cn (G;x) xk, where, Cn(G,k) is the number of pairs (v,S), in which |S| = n -1, 3 ≤ n ≤ t, v ∈ V(G) ,  S ⊆ V (G) , such that
Ahmed Ali
doaj   +1 more source

Non-commuting graph of the dihedral group determined by Hosoya parameters

open access: yesAlexandria Engineering Journal, 2022
Hosoya introduced the concept of graph terminologies in chemistry and provide a modeling for molecules. This modeling leads to predict the chemical properties of molecules, easy classification of chemical compounds, computer simulations and computer ...
Muhammad Salman   +4 more
doaj   +1 more source

Hosoya properties of the commuting graph associated with the group of symmetries

open access: yesMain Group Metal Chemistry, 2021
A vast amount of information about distance based graph invariants is contained in the Hosoya polynomial. Such an information is helpful to determine well-known distance based molecular descriptors.
Abbas Ghulam   +4 more
doaj   +1 more source

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