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Eccentric connectivity index [PDF]

open access: yes, 2010
The eccentric connectivity index $\xi^c$ is a novel distance--based molecular structure descriptor that was recently used for mathematical modeling of biological activities of diverse nature. It is defined as $\xi^c (G) = \sum_{v \in V (G)} deg (v) \cdot
Ilić, Aleksandar
core   +2 more sources

On Eccentric Connectivity Index of Eccentric Graph of Regular Dendrimer [PDF]

open access: yesMathematics in Computer Science, 2016
The eccentric connectivity index \(\xi ^c(G)\) of a connected graph G is defined as \(\xi ^c(G) =\sum _{v \in V(G)}{deg(v) e(v)},\) where deg( v) is the degree of vertex v and e( v) is the eccentricity of v. The eccentric graph, \(G_e\), of a graph G has
Nagar, Atulya, Sastha, Sriram
core   +3 more sources

Network Similarity Measure and Ediz Eccentric Connectivity Index [PDF]

open access: yesComplexity, 2020
Network similarity measures have proven essential in the field of network analysis. Also, topological indices have been used to quantify the topology of networks and have been well studied.
Guihai Yu, Xinzhuang Chen
doaj   +2 more sources

On Eccentric Connectivity Index of TiO2 Nanotubes

open access: yesActa Chimica Slovenica, 2016
The eccentric connectivity index (ECI) is a distance based molecular structure descriptor that was recently used for mathematical modeling of biological activities of diverse nature.
Imran Nadeem, Hani Shaker
doaj   +5 more sources

On eccentric connectivity index [PDF]

open access: yes, 2010
The eccentric connectivity index, proposed by Sharma, Goswami and Madan, has been employed successfully for the development of numerous mathematical models for the prediction of biological activities of diverse nature.
Du, Zhibin, Zhou, Bo
core   +2 more sources

Eccentric connectivity index of some chemical trees [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2016
Let G = (V, E) be a simple connected molecular graph. In such a simple molecular graph, vertices represent atoms and edges represent chemical bonds, we denoted the sets of vertices and edges by V(G) and E(G), respectively.
Haoer, R. S.   +4 more
core   +3 more sources

Leap Eccentric Connectivity Index of Subdivision Graphs

open access: yesJournal of Mathematics, 2022
The second degree of a vertex in a simple graph is defined as the number of its second neighbors. The leap eccentric connectivity index of a graph M, LξcM, is the sum of the product of the second degree and the eccentricity of every vertex in M.
Ali Ghalavand   +2 more
doaj   +3 more sources

Eccentric Connectivity Index of t-Polyacenic Nanotubes

open access: yesAdvances in Materials Science and Engineering, 2019
The eccentric connectivity index ECI is a chemical structure descriptor that is currently being used for the modeling of biological activities of a chemical compound.
Jia-Bao Liu   +3 more
doaj   +2 more sources

The Connective Eccentricity Index of Hypergraphs

open access: yesMathematics, 2022
The connective eccentricity index (CEI) of a hypergraph G is defined as ξce(G)=∑v∈V(G)dG(v)εG(v), where εG(v) and dG(v) denote the eccentricity and the degree of the vertex v, respectively.
Guihai Yu, Renjie Wu, Xingfu Li
doaj   +2 more sources

Augmented eccentric connectivity index [PDF]

open access: yesMiskolc Mathematical Notes, 2011
We review basic mathematical properties of the augmented eccentric connectivity index. Explicit formulas are presented for several classes of graphs, in particular for some open and closed unbranched polymers and nanostructures. Asymptotic behavior is explored and compression ratios are computed for those polymers.
Doslic, Tomislav, Saheli, Mahboubeh
openaire   +4 more sources

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