Computing edge version of eccentric connectivity index of nanostar dendrimers
نویسندگان
چکیده
منابع مشابه
Eccentric Connectivity and Augmented Eccentric Connectivity Indices of N-Branched Phenylacetylenes Nanostar Dendrimers
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The Edge Version of Eccentric Connectivity Index
Let G be a connected graph with vertex set V (G) and edge set E(G). The eccentric connectivity index of G, denoted by ξc(G), is defined as ∑ v∈V (G) deg(v)ec(v), where deg(v) is the degree of a vertex v and ec(v) is its eccentricity. In this paper, we propose the edge version of the above index, the edge eccentric connectivity index of G, denoted by ξc e(G), which is defined as ξc e(G) = ∑ f∈E(...
متن کاملeccentric connectivity and augmented eccentric connectivity indices of n-branched phenylacetylenes nanostar dendrimers
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Eccentric Related Indices of an Infinite Class of Nanostar Dendrimers
Clear indication has it in numerous studies that a strong inherent relationship exists between the chemical characteristics of chemical compounds and drugs (e.g., boiling point and melting point) and their molecular structures. There are several topological indices are defined on these chemical molecular structures and they can help researchers better understand the physical features, chemical ...
متن کاملComputing Vertex PI Index of Tetrathiafulvalene Dendrimers
General formulas are obtained for the vertex Padmakar-Ivan index (PIv) of tetrathiafulvalene (TTF) dendrimer, whereby TTF units we are employed as branching centers. The PIv index is a Wiener-Szeged-like index developed very recently. This topological index is defined as the summation of all sums of nu(e) and nv(e), over all edges of connected graph G.
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ژورنال
عنوان ژورنال: Kragujevac Journal of Science
سال: 2018
ISSN: 1450-9636,2466-5509
DOI: 10.5937/kgjsci1840049m