engleski

The eccentric connectivity index of $TUC_4C_8(R)$ nanotubes

The eccentric connectivity index ${;\xi};(G)$ of a graph $G$ is defined as ${;\xi};(G) = \sum _{;u \in V(G)}; deg(u) \varepsilon (u)$, where $deg(u)$ denotes the degree of the vertex $u$ and ${;\varepsilon};(u)$ is the largest distance between u and any other vertex v of G. In this paper we present exact formulas for the eccentric connectivity index of $TUC_4C_8(R)$ nanotubes.

Eccentric connectivity index; $TUC_4C_8(R)$ nanotube

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