Eccentric connectivity index
Eccentric Connectivity Index and Detour Eccentric Connectivity Index – A Comparison
... Abstract.In this paper we define detour eccentric connectivity index and detour connective eccentric index of graphs. We compare the properties of both these indices. The values of ...
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Eccentric Connectivity Index: Extremal Graphs and Values
... the eccentric connectivity index of a tree is at least linear and at most quadratic in the number of ...the eccentric connectivity indices of Corollary 2 is more than quadratic in the ...
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The eccentric connectivity index of bucket recursive trees
... distance-based index, whose mathematical properties and chemical applications have been widely ...the eccentric distance sum, and the adjacency-cum-distance-based eccentric connectivity ...
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The augmented eccentric connectivity index of nanotubes and nanotori
... topological index for discriminating power with regard to anti-HIV activity of 2-pyridinone ...this index for nano structures and find exact expression of the augmented eccentric connectivity ...
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Augmented eccentric connectivity index of Fullerenes
... some eccentric-based topological ...of eccentric-based indices of some ...augmented eccentric connectivity index of two classes of fullerene graphs C ...
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Chain hexagonal cacti: extremal with respect to the eccentric connectivity index
... The eccentric connectivity index is a graph invariant that attracted a lot of attention of researchers working in the area of QSAR/QSPR. It has been found useful in modeling various physico-chemical ...
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Eccentricity Sequence and the Eccentric Connectivity Index of Two Special Categories of Fullerenes
... between u and any other vertex in G. The maximum eccentricity over all vertices of G is called the diameter of G, D(G), and the minimum eccentricity is called the radius of G and denoted by R(G). The set of all vertices ...
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Eccentric Connectivity Index of Some Dendrimer Graphs
... The eccentric connectivity index [2-6] C ( ) x of a graph G is defined as C ( ) x u V G ( ) deg( ) ( ) u u , where deg(u) denotes the degree of vertex u in G, ...the eccentric of ...
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Modified eccentric connectivity index of fullerenes
... modified eccentric connectivity index for two classes of fullerenes, namely fullerene series F 20 n 4 (n≥3) and F 20 n 6 (n≥4), see Figures 1,3 ...
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The eccentric connectivity index of armchair polyhex nanotubes
... the eccentric connectivity index of an armchair nanotube is computed for the first ...the eccentric connectivity index of nanotubes into ...
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On Eccentric Connectivity Index of Eccentric Graph of Regular Dendrimer
... the eccentric connectivity index of the eccentric graph of a regular ...the eccentric connectivity index for the second iteration of eccentric graph of regular ...
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On the Eccentric Connectivity Index of Unicyclic Graphs
... eccentricity connectivity index of unicyclic graphs with perfect ...the eccentric connectivity index of unicyclic graphs with given matching ...
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Eccentric connectivity index of fullerene graphs
... topological index is a numerical value associated with chemical constitution purporting for correlation of chemical structure with various physical properties, chemical reactivity or biological ...topological ...
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On the ECI and CEI of Boron Nitrogen Fullerenes
... The eccentric connectivity index and connective eccentricity index are impor- tant topological indices for ...tric connectivity index and connective eccentricity index of ...
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Computation on the fourth Zagreb index of Polycyclic Aromatic Hydrocarbons (PAHk)
... Keywords: Molecular graph, Topological index, Eccentric connectivity index, Zagreb eccentricity indices, Polycyclic Aromatic hydrocarbons PAHk.. It concern with the mathematical modeling[r] ...
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Vol 7, No 9 (2016)
... he eccentric connectivity index based on degree and eccentricity of the vertices of a graph is a widely used graph invariant in ...the eccentric connectivity index of the ...
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On Eccentricity-Based Topological Indices and Polynomials of Phosphorus Containing Dendrimers
... the eccentric-connectivity index has very important place among the other topological descriptors, In this paper, we compute the exact formulas of eccentric-connectivity index ...
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Connective eccentric index of fullerenes
... In theoretical chemistry molecular structure descriptor or topological indices, are used to compute properties of chemical compounds. Throughout this paper, graph means simple connected graph. The vertex and edge sets of ...
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On Eccentric Graphs of Broom Graphs
... the eccentric graph of a broom ...its eccentric graph in Theorems 2.2 and 2.3. The eccentric connectivity index of a broom graph is known ...the eccentric graph of a broom ...
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Eccentric Connectivity and Augmented Eccentric Connectivity Indices of N-Branched Phenylacetylenes Nanostar Dendrimers
... Another topological index that we attend it in this paper is augmented eccentric connectivity index. This is defined as the summation of the quotients of the product of adjacent vertex degrees ...
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