Results 11 to 20 of about 82,097 (123)
On ordinary generalized geometric–arithmetic index
Applied Mathematics Letters, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eliasi, Mehdi, Iranmanesh, Ali
openaire +4 more sources
Bounds for the geometric–arithmetic index of unicyclic graphs
Journal of Applied Mathematics and Computing, 2023 We present lower and upper bounds for the geometric-arithmetic index of unicyclic graphs and provide extremal graphs for the corresponding bounds.
Sunyo Moon, Seungkook Park
openaire +4 more sources
CMMSE 18: geometric-arithmetic index and line graph [PDF]
Journal of Mathematical Chemistry, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Domingo Pestana +2 more
openaire +3 more sources
Analysis of the properties of the topological Index using (analysis tools)
Al-Kitab Journal for Pure Sciences, 2023 Graph G has two sets of information: the vertices, V(G), and the edges, E(G). The definitions for the Connectivity, Geometric Arithmetic, Atomic Bond, and Sum Connectivity Indices of G: were deg(u), deg(v) are a degree of vertices. Dendrimers are
Batool Hatawi, Nabil Aref
doaj +1 more source
Topological Descriptors of M-Carbon Mr,s,t
Journal of Chemistry, 2021 We have studied topological indices of the one the hardest crystal structures in a given chemical system, namely, M-carbon. These structures are based and obtained by the famous algorithm USPEX. The computations and applications of topological indices in
Hong Yang, Muhammad Naeem
doaj +1 more source
On the spread of the geometric-arithmetic matrix of graphs
AKCE International Journal of Graphs and Combinatorics, 2022 In a graph G, if di is the degree of a vertex vi, the geometric-arithmetic matrix GA(G) is a square matrix whose [Formula: see text]-th entry is [Formula: see text] whenever vertices i and j are adjacent and 0 otherwise.
Bilal A. Rather +2 more
doaj +1 more source
Inequalities on the geometric-arithmetic index
Hacettepe Journal of Mathematics and Statistics, 2021 Summary: Although the notion of geometric-arithmetic index has been introduced in the chemical graph theory these past years, it has already proved to be useful. The objective of the work we present here is twofold: First, obtaining new relations connecting the geometric-arithmetic index with other topological indices; second, to characterize graphs ...
GRANADOS, Ana +3 more
openaire +4 more sources
Vertex-Based Topological Indices of Double and Strong Double Graph of Dutch Windmill Graph
Journal of Chemistry, 2021 A measurement of the molecular topology of graphs is known as a topological index, and several physical and chemical properties such as heat formation, boiling point, vaporization, enthalpy, and entropy are used to characterize them.
Muhammad Asad Ali +3 more
doaj +1 more source
Selection indices to identify drought-tolerant grain sorghum cultivars. [PDF]
, 2017 Twenty-five cultivars of grain sorghum [Sorghum bicolor (L.) Moench] were examined under both drought stress and normal conditions in 4 experiments. In each condition, genotypes were evaluated in a factorial experiment using a randomized complete block ...
BASTOS, E. A. +8 more
core +1 more source
Some Topological Invariants of Graphs Associated with the Group of Symmetries
Journal of Chemistry, 2020 A topological index is a quantity that is somehow calculated from a graph (molecular structure), which reflects relevant structural features of the underlying molecule.
Chang-Cheng Wei +6 more
doaj +1 more source