Results 71 to 80 of about 1,818 (187)

Some Topological and Polynomial Indices (Hosoya and Schultz) for the Intersection Graph of the Subgroup of〖 Z〗_(r^n )

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
Let  be any group with identity element (e) . A subgroup intersection graph of  a subset  is the Graph with V ( ) =  - e and two separate peaks c and d contiguous for c and d if and only if      , Where  is a Periodic subset of resulting from  .
Alaa J. Nawaf, Akram S. Mohammad
doaj   +1 more source

The Hosoya polynomial decomposition for hexagonal chains

open access: yesMathematical and Computer Modelling, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, Shoujun, Zhang, Heping
openaire   +2 more sources

M‐Polynomial and NM‐Polynomial Methods for Topological Indices of Polymers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2024, Issue 1, 2024.
Topological indices (TIs) are numerical tools widely applied in chemometrics, biomedicine, and bioinformatics for predicting diverse physicochemical attributes and biological activities within molecular structures. Despite their significance, the challenges in deriving TIs necessitate novel approaches.
Mohammed Yasin H   +4 more
wiley   +1 more source

Hosoya Polynomials of Steiner Distance of Complete m-partite Graphs and Straight Hexagonal Chains(*) [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2008
The Hosoya polynomials of Steiner distance of complete m-partite graphs  and Straight hexagonal chains  are obtained in this paper. The Steiner n-diameter and Wiener index of Steiner n-distance of   and   are also obtained.
Ali Ali, Herish Abdullah
doaj   +1 more source

An Algebraic Approach of Topological Indices Connected with Finite Quasigroups

open access: yesJournal of Function Spaces, Volume 2024, Issue 1, 2024.
In mathematical chemistry, the algebraic polynomial serves as essential for calculating the most accurate expressions of distance‐based, degree‐distance‐based, and degree‐based topological indices. The chemical reactivity of molecules, which includes their tendency to engage in particular chemical processes or go through particular reactions, can be ...
Muhammad Nadeem   +4 more
wiley   +1 more source

The Terminal Hosoya Polynomial of Some Families of Composite Graphs [PDF]

open access: yesInternational Journal of Combinatorics, 2014
Let G be a connected graph and let Ω(G) be the set of pendent vertices of G. The terminal Hosoya polynomial of G is defined as TH(G,t)∶=∑x,y∈Ω(G):x≠ytdG(x,y), where dG(x,y) denotes the distance between the pendent vertices x and y. In this note paper we obtain closed formulae for the terminal Hosoya polynomial of rooted product graphs and corona ...
Deutsch, Emeric   +1 more
openaire   +2 more sources

The Causal Effects of Nuclear Fusion Reactors, Human Development, and Economic Growth on Nuclear Energy Consumption in the United States

open access: yesInternational Journal of Energy Research, Volume 2024, Issue 1, 2024.
The study is aimed at investigating the effects of nuclear fusion reactors, human development, and economic growth on nuclear energy consumption in the United States from 1990 to 2019 using time and frequency causality analyses. The time domain causality analysis examined the relationship between variables over time using a single test statistic, while
Mucahit Aydin   +2 more
wiley   +1 more source

Graphs Connected to Isotopes of Inverse Property Quasigroups: A Few Applications

open access: yesJournal of Applied Mathematics, Volume 2024, Issue 1, 2024.
Many real‐world applications can be modelled as graphs or networks, including social networks and biological networks. The theory of algebraic combinatorics provides tools to analyze the functioning of these networks, and it also contributes to the understanding of complex systems and their dynamics.
Muhammad Nadeem   +3 more
wiley   +1 more source

Hosoya Polynomials of The Width Distance of Some Cog-Special Graphs [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2011
In  this paper, we give some definitions and  properties of the width distance and find the Hosoya polynomials, Wiener indices, and the average distances of some special cog-graphs with respect  to the width distance.
Tahir Ismail, Ahmed Ali
doaj   +1 more source

Estimation of Joint Parameters Using Frequency‐Based Substructuring Techniques

open access: yesInternational Journal of Distributed Sensor Networks, Volume 2024, Issue 1, 2024.
This study presents frequency‐based substructuring (FBS) techniques and an identification method for predicting joint parameters. Two FBS techniques, FBS‐1 and FBS‐2, were derived by assuming pseudomasses at the joint nodes between adjacent substructures.
Hye-Sook Jang   +3 more
wiley   +1 more source

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