Results 31 to 40 of about 109,183 (305)
Further Inequalities Between Vertex-Degree-Based Topological Indices [PDF]
International Journal of Applied and Computational Mathematics, 2016 9 pages and one table ...
Ali, Akbar +2 more
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On Some Ve-Degree and Harmonic Molecular Topological Properties of Carborundum
ARO-The Scientific Journal of Koya University, 2020 Carborundum, also known as silicon carbide which containing carbon and silicon, is a semiconductor. Molecular topological properties of physical substances are important tools to investigate the underlying topology of these substances.
Murat Cancan +3 more
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Asymptotic Distribution of Degree-Based Topological Indices
Match - Communications in Mathematical and in Computer Chemistry, 2023 Topological indices play a significant role in mathematical chemistry. Given a graph $\mathcal{G}$ with vertex set $\mathcal{V}=\{1,2,\dots,n\}$ and edge set $\mathcal{E}$, let $d_i$ be the degree of node $i$. The degree-based topological index is defined as $\mathcal{I}_n=$ $\sum_{\{i,j\}\in \mathcal{E}}f(d_i,d_j)$, where $f(x,y)$ is a symmetric ...
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Degree-based topological indices of product graphs
Open Journal of Discrete Applied Mathematics, 2021 In this paper, we obtain the quantitative calculation formula of the degree-based topological indices of four standard products for the path and regular graphs, which unify to solve the question on the product of these basic graphs without dealing with it one by one separately.
Xiaojing Wang, Zhen Lin, Lianying Miao
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Topological indices of some anticancer drugs
Ratio Mathematica, 2022 Every sixth death in the world is due to cancer, making it the second leading cause of death. Around one-third of deaths from cancer are due to tobacco use, high body mass index, alcohol use, low fruit and vegetable intake, and lack of physical activity.
Bommanahal Basavanagoud, Patil Patil
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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 +34 more
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Topological Descriptors on Some Families of Graphs
Journal of Chemistry, 2021 In view of the successful applications of graph theory, relationships between the biological activity and chemical structure have been developed. One of the popular topics in graph theory is problems relating to topological indices.
Iftikhar Ahmad +3 more
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PReaCH: A Fast Lightweight Reachability Index using Pruning and Contraction Hierarchies [PDF]
, 2014 We develop the data structure PReaCH (for Pruned Reachability Contraction Hierarchies) which supports reachability queries in a directed graph, i.e., it supports queries that ask whether two nodes in the graph are connected by a directed path.
Merz, Florian, Sanders, Peter
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Computation of Revan Topological Indices for Phenol-Formaldehyde Resin
Journal of Mathematics, 2022 Phenol-formaldehyde resin has a wide range of moldings. The phenolic resin retains properties at the freezing point; hence, it is difficult to determine its age.
Muhammad Kamran +5 more
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A study on anti-malaria drugs using degree-based topological indices through QSPR analysis.
Mathematical biosciences and engineering : MBE, 2023 The use of topological descriptors is the key method, regardless of great advances taking place in the field of drug design. Descriptors portray the chemical characteristic of a molecule in numerical form, that is used for QSAR/QSPR models. The numerical
Xiujun Zhang +5 more
semanticscholar +1 more source