The eccentric connectivity index of nanotubes and nanotori

Authors:
A. R. Ashrafi;M. Saheli;M. Ghorbani
Affiliations:
-;-;-
Venue:
Journal of Computational and Applied Mathematics
Year:
2011

Citing 2
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Abstract

Let G be a molecular graph. The eccentric connectivity index @x^c(G) is defined as @x^c(G)=@?"u"@?"V"("G")deg"G(u)@e"G(u), where deg"G(u) denotes the degree of vertex u and @e"G(u) is the largest distance between u and any other vertex v of G. In this paper exact formulas for the eccentric connectivity index of TUC"4C"8(S) nanotube and TC"4C"8(S) nanotorus are given.