The eccentric connectivity index of nanotubes and nanotori

The eccentric connectivity index of nanotubes and nanotori
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DOI:
10.1016/j.cam.2010.03.001
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发表时间:
2011-06
期刊:
J. Comput. Appl. Math.
影响因子:
--
通讯作者:
A. Ashrafi;M. Saheli;M. Ghorbani
A. Ashrafi;M. Saheli;M. Ghorbani
中科院分区:
其他
文献类型:
--
作者:
A. Ashrafi;M. Saheli;M. Ghorbani

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设G是一个分子图.定义了偏心连通度指数ε G(u)= εG(u),其中degG(u)表示顶点u的度,εG(u)表示顶点u到G中任意一个顶点v的最大距离.本文给出了TUC_4C_8(S)纳米管和TC_4C_8(S)纳米环的偏心连接性指数的精确计算公式。
Let G be a molecular graph. The eccentric connectivity index ξc(G) is defined as ξc(G)=∑u∈V(G)degG(u)εG(u), where degG(u) denotes the degree of vertex u and εG(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 TUC4C8(S) nanotube and TC4C8(S) nanotorus are given.